scientific article; zbMATH DE number 3574107

zbMath0368.20023MaRDI QIDQ4145882

Paul E. Schupp, Roger C. Lyndon

Publication date: 1977

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Mathematics Subject Classification ID

Generators, relations, and presentations of groups (20F05) Research exposition (monographs, survey articles) pertaining to group theory (20-02)

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I., Sets of primitive elements in a free group., Existentially closed CSA-groups., Finitely generated simple algebras: a question of B. I. Plotkin., Automorphisms of the category of free Lie algebras, Acylindrical accessibility for groups acting on \(\mathbb{R}\)-trees., On the palindromic and primitive widths of a free group., Orderable 3-manifold groups., Cogrowth and spectral gap of generic groups., Profinite surface groups and the congruence kernel of arithmetic lattices in \(\text{SL}_2(\mathbb{R})\)., Expanders, rank and graphs of groups, On independent families of normal subgroups in free groups, An entropy for groups of intermediate growth, Representation theoretic rigidity in \(PSL(2,\mathbb{R})\), Presentations for subgroups of monoids, A flat plane that is not the limit of periodic flat planes., Aspects of free groups., Ascending HNN extensions of polycyclic groups are residually finite., Tiling with polyominoes and combinatorial group theory, Classification of epimorphisms of fundamental groups of surfaces onto free groups, Homomorphism diagrams of surface groups, Faithful linear representations and residual finiteness of some products of cyclics with one relation, Augmented group systems and shifts of finite type, Torsion-free group without unique product property, A generating function for the Euler characteristic of \(Out(F_ n)\), Fixed points of automorphisms of free groups, On Heegaard decompositions of torus knot exteriors and related Seifert fibre spaces, On the Nielsen method in free products with amalgamated subgroups, Fixed points and braids. 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II: Systems in triangular quasi-quadratic form and description of residually free groups, Generic-case complexity, decision problems in group theory, and random walks., Complete positive group presentations., Residual properties of the modular group and other free products., Automorphic orbits in free groups., A non-Hopfian almost convex group., Image reducing words and subgroups of free groups., Automorphisms of direct products of groups and their geometric realisations, The modular group action on real \(SL(2)\)-characters of a one-holed torus, Surfaces in three-manifolds and non-singular equations in groups, Bounded HNN presentations, Computable algebra and group embeddings, Automorphisms and Hopficity of certain Baumslag-Solitar groups, Zur Struktur der \(\mathrm{PSL}_2 \) über einigen imaginär-quadratischen Zahlringen, On the fundamental group of real toric varieties, Height in splittings of hyperbolic groups., On isomorphism testing of a class of 2-nilpotent groups, The complexity of Grigorchuk groups with application to cryptography, Conjugacy in special monoids, Products of commutators and squares in free groups, On the quotient of a free group by the commutator of two normal subgroups, Separability properties of free groups and surface groups, Automatic groups and amalgams, Complete problems for symmetric logspace involving free groups, Growth rates of \(n\)-knots, Applications of a noncommutative Jacobian matrix, Empty components in strong shape theory, Isomorphism of the Baumslag-Solitar groups, Completing a finite special string-rewriting system on the congruence class of the empty word, The \(SQ\)-universality of one-relator products of cyclics, The automorphism group of a free group is not linear, Topographs and groups, The free partially commutative Lie algebra: Bases and ranks, A generalized weight test with applications to tree presentations, Normal subgroups of \(SL_ 2(k[t)\) with or without free quotients], Automorphism group of a free group: Centralizers and stabilizers, Automorphisms of groups, Inverse monoids and rational subsets of related groups, Polyhedron complexes with simply transitive group actions and their realizations, Combinatorial distance between HNN decompositions of a group, The swap conjecture, Group presentations, formal languages and characterizations of one- counter groups, On cancellations in HNN-groups, Actions of the homeotopy group of an orientable 3-dimensional handlebody, The malnormality of certain subgroups of small cancellation groups, Applications of topological graph theory to group theory, Order reduced Reidemeister-Schreier subgroup presentations and applications, Cohomology theory of aspherical groups and of small cancellation groups, Max Dehn, Cellular actions and groups of finite quasi-projective dimension, A uniqueness decomposition theorem for actions of finite groups on free groups, On the rank of quadratic equations in free groups, Solutions of quadratic equations in groups with small cancellation condition, A derivation HNN construction for Lie algebras, On certain elements of free groups, Uniform growth in hyperbolic groups, Some undecidability results concerning the property of preserving regularity, Relating rewriting techniques on monoids and rings: congruences on monoids and ideals in monoid rings, Commutativity in free inverse monoids, Reductions and functors from problems to word problems, On the dependence of the growth rate on the length of the defining relator, Free products of units in algebras. 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Andrews-Curtis conjecture, Primitive elements and automorphisms of the free metabelian group of rank 3, Connected sum decompositions of high-dimensional manifolds, \(PD_4\)-complexes and 2-dimensional duality groups, On a family of residually finite groups, Some examples of invariably generated groups, Asphericity of groups defined by graphs, Equivalent generating vectors of finitely generated modules over commutative rings, Knot groups and residual nilpotence, Introduction to a small cancellation theorem, Every group is the outer automorphism group of an HNN-extension of a fixed triangle group, An uncountable family of finitely generated residually finite groups, Cayley polynomial-time computable groups, On decidability of amenability in computable groups, Fixed subgroups and computation of auto-fixed closures in free-abelian times free groups, IA-automorphisms and Lie algebras related to the McCool group, Simplicial volume of one-relator groups and stable commutator length, Solution of the membership problem of the prefix monoid in certain one-relator groups., Non-finitely generated maximal subgroups of context-free monoids, Holomorphic arcs on singularities, Equations in acylindrically hyperbolic groups and verbal closedness, Density of random subsets and applications to group theory, Class-preserving automorphisms of certain HNN extensions., On Wiman's theorem for graphs, Linearly embedded graphs in 3-space with homotopically free exteriors, Rational subsets and submonoids of wreath products., Rips-Segev torsion-free groups without the unique product property, Relative divergence of finitely generated groups, Twisted conjugacy in \(\mathrm{GL}_2\) and \(\mathrm{SL}_2\) over polynomial algebras over finite fields, Coning-off CAT(0) cube complexes, The centralizer dimension of generalized Baumslag-Solitar groups, Finite derivation type for Rees matrix semigroups, Character theory of symmetric groups, subgroup growth of Fuchsian groups, and random walks., Continued fractions and the Markoff tree, Virtually compact special hyperbolic groups are conjugacy separable, Amalgams of inverse semigroups and reversible two-counter machines., A palindromization map for the free group, The JSJ-decompositions of one-relator groups with torsion., A Cartan-Hadamard type result for relatively hyperbolic groups, Divergence of Morse geodesics, Ends for subsemigroups of finite index., Distortion elements for surface homeomorphisms, Free groups of interval exchange transformations are rare, Periodic polynomial of trace maps., Implicit function theorem over free groups., Inverse monoids: decidability and complexity of algebraic questions., \(K\)- and \(L\)-theory of the semi-direct product of the discrete 3-dimensional Heisenberg group by \(\mathbb Z/4\), The genus problem for one-relator products of locally indicable groups, Finite derivation type for large ideals., The essential spectrum of the Laplacian on rapidly branching tessellations, Subgroups, automorphisms, and Lie algebras related to the basis-conjugating automorphism group, Maximum likelihood estimates of pairwise rearrangement distances, Takahasi semigroups, 3-manifolds everywhere, Proper actions on \(\ell^p\)-spaces for relatively hyperbolic groups, Profinite groups in which centralizers are abelian, On the multiple conjugacy problem in group \(F/N_1 \cap N_2\), Crossings between non-homotopic edges, Solving the membership problem for parabolic Möbius monoids, Primitive and almost primitive elements of Schreier varieties, Weakly positive and directed Anosov representations, Separating cyclic subgroups in graph products of groups, Universal actions and representations of locally finite groups on metric spaces, On the virtual potency of some groups and free constructions, String compression in FA-presentable structures, Subgroup separability in integral group rings., On a certain class of cyclically presented groups., A note on the definition of small overlap monoids., Freiheitssatz and phase transition for the density model of random groups, The intersecting kernels of Heegaard splittings, The root-class residuality of some generalized free products and HNN-extensions, Cryptosystems using linear groups, Combinatorial group theory and public key cryptography, One-relator quotients of right-angled Artin groups, On the word problem for free products of semigroups and monoids, Algorithmic problems in groups with quadratic Dehn function, Representability of matroids by \(c\)-arrangements is undecidable, One-relator groups with torsion are conjugacy separable., Arc-transitive abelian regular covers of cubic graphs, Explicit Helfgott type growth in free products and in limit groups., Varieties generated by wreath products of Abelian groups., Invariants of links in thickened surfaces, Zappa-Szép products of semigroups and their \(C^\ast\)-algebras, A product theorem in free groups., Normalizers in groups and in their profinite completions., Intersections of Magnus subgroups and embedding theorems for cyclically presented groups., On ordering free groups., Gröbner-Shirshov bases for some braid groups., A hybrid search algorithm for the Whitehead minimization problem., Cyclic coverings of the \(p\)-adic projective line by Mumford curves, Group rings of proper ascending HNN extensions of countably infinite free groups are primitive., Some results on embeddings of algebras, after de Bruijn and McKenzie, Magnus intersections of one-relator free products with small cancellation conditions., On the isomorphism of some groups with one defining relation., Subgroup properties of fully residually free groups, Estimates of Minkowski dimensions in the space of marked groups., Intersection-number operators and Chebyshev polynomials. IV: Non-planar cases, Subgroups of pure braid groups generated by powers of Dehn twists., Two-letter group codes that preserve aperiodicity of inverse finite automata., Radicals and Plotkin’s problem concerning geometrically equivalent groups, On the decidability of the word problem for amalgamated free products of inverse semigroups., The modular decomposition of countable graphs. Definition and construction in monadic second-order logic, Non-amenable finitely presented torsion-by-cyclic groups, On the Kurosh rank of the intersection of subgroups in free products of groups., TOPOLOGICAL SOLVABILITY OF EQUATIONS OVER GROUPS, Inner amenability and HNN extensions., Magnus intersections in one-relator products., Embedding 2-groups in groups generated by involutions, Computing subgroup presentations, using the coherence arguments of McCammond and Wise., Tree amalgamation of graphs and tessellations of the Cantor sphere, Counting words of minimum length in an automorphic orbit., On the homotopy type of CW-complexes with aspherical fundamental group, Satisfaction of existential theories in finitely presented groups and some embedding theorems., Uniform growth rate, Unbounded derivations, free dilations, and indecomposability results for II$_1$ factors, Rapid decay and Baum-Connes for large type Artin groups, On balanced presentations of the trivial group., Attainability of the exponent of exponential growth in free products of cyclic groups, Conjugacy separability of descending HNN-extensions of finitely generated Abelian groups., New examples of groups acting on real trees, A polynomial bound on solutions of quadratic equations in free groups., Attainability of the minimal exponential growth rate for free products of finite cyclic groups., Order separability of free products with amalgamated subgroup., Decomposition of unitary linear groups into products of free factors., Acylindrical hyperbolicity of groups acting on trees, Parabolic generating pairs of genus-one 2-bridge knot groups, Sums of Dilates in Ordered Groups, Homotopically equivalent simple loops on 2-bridge spheres in Heckoid orbifolds for 2-bridge links (I), HNN extensions of von Neumann algebras, A multidimensional critical factorization theorem, On the Solvability of Equations Over Groups, Groups with free regular length functions in $\mathbb{Z}^{n}$, Which Words have an Efficient Result?, Free Groups in the Second Bounded Cohomology, Decision problems concerning S-arithmetic groups, Hereditary Homotopy Equivalences, The Automorphism Group of a Free-by-Cyclic Group in Rank 2, On the Free Genus of Knots, Two-Generator Groups with Perfect Frattini Subgroups, Effective Indices of Subgroups in Baumslag–Pride Groups with Free Quotients, An Even Better Representation for Free Lattice-Ordered Groups, All Countable Groups have Cubic Presentations, Reducibilities Among Decision Problems for HNN Groups, Vector Addition Systems and Subsystems of Peano Arithmetic, On the decidability of semigroup freeness, Hyperbolic Surfaces and Quadratic Equations in Groups, Representations of Infinite Permutations by Words, On Finite Presentations for Groups, The Freiheitssatz for One-Relation Monoids, Geometric Automorphisms of a Free Group of Rank at Least Three are Rare, The Word Problem and Related Results for Graph Product Groups, ON REGULAR GROUPS AND FIELDS, COMPLEXITY OF EQUIVALENCE RELATIONS AND PREORDERS FROM COMPUTABILITY THEORY, Unnamed Item, Infinitely presentedC(6)-groups are SQ-universal, Minsky Machines and Algorithmic Problems, Classification of partially hyperbolic diffeomorphisms in 3-manifolds with solvable fundamental group, Unnamed Item, GB-Problem in the Class of Locally Graded Groups, On Certain Questions of the Free Group Automorphisms Theory, An Algorithmically Unsolvable Problem in Analysis, Presentability by products for some classes of groups, Strict Dead-End Elements in Free Soluble Groups, On an algorithm to decide whether a free group is a free factor of another, Isomorphism Types in Wreath Products and Effective Embeddings of Periodic Groups, Right-angled mock reflection and mock Artin groups, Homing vector automata, On Constructive Nilpotent Groups, Matrix Semigroup Freeness Problems in SL $$(2,\mathbb {Z})$$, On the topology of a boolean representable simplicial complex, Automorphisms of a free group of infinite rank, Classification of the group actions on the real line and circle, Dehn Surgery and Satellite Knots, On Turner’s theorem and first-order theory, Balanced finite presentations of the trivial group, Unnamed Item, Unnamed Item, Vector Ambiguity and Freeness Problems in SL $$(2,\mathbb {Z})$$, Asymptotic dimension of finitely presented groups, Embeddings into Simple Free Products, Finding k Partially Disjoint Paths in a Directed Planar Graph, On the Asphericity of Ribbon Disc Complements, Mapification of n-dimensional abstract polytopes and hypertopes, Groups of Automorphisms of Totally Ordered Sets: Techniques, Model Theory and Applications to Decision Problems, Orbit decidability and the conjugacy problem for some extensions of groups, GENERATING MAXIMAL SUBGROUPS OF FINITE ALMOST SIMPLE GROUPS, Elements of Finite Order for Finite Monadic Church-Rosser Thue Systems, On Whitehead’s algorithm, Nonsingular Equations over Groups II, The τ-theory for free groups is undecidable, Geodesic currents and length compactness for automorphisms of free groups, Groups Presented by Finite Two-Monadic Church-Rosser Thue Systems, Multielement Order Separability in Free Products of Groups, Stability and Bounded Balls of Free Products, Wrappings of Permutations, A Residual Property of Certain Linear Groups, Ideals in group rings of free products with amalgamations and of hnn extensions, Formal Languages and Groups as Memory, The cokernel of the Johnson homomorphisms of the automorphism group of a free metabelian group, On the generic type of the free group, Sur le problème des mots des quotients de groupes et produits libres, A Ribbon Knot Group which has no Free Base, On systems of equations over free partially commutative groups, Cubulating random groups at density less than $1/6$, Compressed Word Problems in HNN-Extensions and Amalgamated Products, A Freiheitssatz for Whitehead Graphs of One-Relator Groups with Small Cancellation, On genericity and weight in the free group, Polynomial Automorphisms of Soluble Groups, Equations in groups, A countable family of finitely presented infinite congruence-free monoids, Effective Galois theory, An Approach to Homotopy Classification of Links, The geometric dimension of an equivalence relation and finite extensions of countable groups, Space functions of groups, The genus of HNN-extensions, Factorizations in finite groups, Translation equivalence in free groups, Kazhdan groups with infinite outer automorphism group, The Automorphism Group of a Shift of Finite Type, Non-commutative determinants and automorphisms of groups, (Cyclic) subgroup separability of HNN and split extensions, Decomposing a $k$-valued transducer into $k$ unambiguous ones, The conjugacy problem for groups of alternating prime tame links is polynomial-time, When Is a Graph Product of Groups Virtually-Free?, Peripheral fillings of relatively hyperbolic groups, A Higman embedding preserving asphericity, Primitive Elements in Free Groups, Asymptotic invariants, complexity of groups and related problems, GROUPS WITH CONTEXT-FREE REDUCED WORD PROBLEM, Computing Triangulations of Mapping Tori of Surface Homeomorphisms, Almost Commutative Semigroups, Discriminating and co-discriminating groups, Measuring the tameness of almost convex groups, Subgroup separability, knot groups and graph manifolds, Fractional isoperimetric inequalities and subgroup distortion, Solvable groups with polynomial Dehn functions, MALNORMAL SUBGROUPS OF FREE GROUPS, PRIMITIVITY PRESERVING ENDOMORPHISMS OF FREE GROUPS, SUBGROUPS OF THE FREE SEMIGROUP ON A BIORDERED SET IN WHICH PRINCIPAL IDEALS ARE SINGLETONS, Large localizations of finite simple groups, Un Théorème surH₂(GL(A); ℤ), Endomorphisms preserving an orbit in a relatively free nilpotent group, Euler characteristic for one-relator products of cyclics, Automorphisms of categories of free algebras of varieties, Semistability of amalgamated products, HNN-extensions, and all one-relator groups, Martin Boundaries of Random Walks: Ends of Trees and Groups, Taming the hydra: The word problem and extreme integer compression, A combination theorem for cubulation in small cancellation theory over free products, Some free actions on non-archimedean trees, Free group languages: Rational versus recognizable, Monoid presentations of groups by finite special string-rewriting systems, Some subgroups of SL(3,Z) generated by transvections, Generalizations of free groups: some questions, On one-relator products induced by generalized triangle groups II, Groups acting freely on R-trees, On extensions of coxeier groups, The cohomology ring of the sapphires that admit the Sol geometry, Abelian subgroup separability of certain HNN extensions, Constructing finitely presented infinite nearly simple groups, Solutions of the Yang–Baxter equation associated to skew left braces, with applications to racks, On the Burnside problem on periodic groups, Structure Sets Vanish for Certain Bundles over Seifert Manifolds, A family of two-generator non-Hopfian groups, Equational Theories with a Minority Polynomial, Howie diagrams and complexes of groups, Bounded automorphisms of surfaces, Small cancellation groups and translation numbers, Explicit free subgroups of $\operatorname {Aut}(\mathbf {R},\le )$, On Andrews–Curtis conjectures for soluble groups, Certain maximal characteristic subgroups of the free group of rank 2, Infinitely presented graphical small cancellation groups are acylindrically hyperbolic, Splittings of Surfaces, Bounded generation does not imply finite presentation, Alternating quotients of the (3._q.r) triangle groups, Markov-Type Properties, Free nilpotent groups of rank 2, AMALGAMABLE DIAGRAM SHAPES, Hyperbolic groups and their quotients of bounded exponents, On Finitely Dominated CW Complexes, Automorphic and endomorphic reducibility and primitive endomorphisms of free metabelian groups, PSPACE-completeness of certain algorithmic problems on the subgroups of free groups, A group of paths in ℝ², Applications of L systems to group theory, HNN-extensions of Lie algebras, Virtually free groups with finitely many outer automorphisms, The infinite Fibonacci groups and relative asphericity, On the hyperbolicity of small cancellation groups and one-relator groups, The 6-property for simplicial complexes and a combinatorial Cartan-Hadamard theorem for manifolds, Incoherent negatively curved groups, Quasi-flats in semihyperbolic groups, Two remarks on elementary theories of groups obtained by free constructions, Unnamed Item, Polynomial upper bounds for the Dehn function of R. Thompson's group F, A Controlled Plus Construction for Crumpled Laminations, Free Amalgams of Rank Two, An Algorithm for Finding the Veech Group of an Origami, Fibonacci groups with aspherical presentations, Commutators as Powers in Free Products of Groups, Some decision problems on integer matrices, DIAGRAMS WITH SELECTION AND METHOD FOR CONSTRUCTING BOUNDEDLY GENERATED AND BOUNDEDLY SIMPLE GROUPS, Detecting Negative Curvature in Groups Via Local Conditions, Centroids of groups, Infinite quotients of Fuchsian groups, Vassiliev invariants for braids on surfaces, Geometric subgroups of mapping class groups, On a conjecture in Artin groups, On powered one-relator HNN-extensions of groups, A combination theorem for combinatorially non-positively curved complexes of hyperbolic groups, The second bounded cohomology of an amalgamated free product of groups, Low-dimensional linear representations of 𝐴𝑢𝑡𝐹_{𝑛},𝑛≥3, Nonpositive immersions, sectional curvature, and subgroup properties, On irreducible cyclic presentations, Normal closure of one-variable equations in free groups, The structure of invertible substitutions on a three-letter alphabet, A group with strange decomposition properties, On the integral homology of finitely-presented groups, Almost locally free groups and the genus question, On discrete hyperbolic arboreal groups, Generic properties of finitely presented groups and howson's theorem, Real algebraic threefolds II. Minimal model program, One-relator quotients of free products, On fixed points of automorphisms of finitely generated free groups, Supports of derivations, free factorizations, and ranks of fixed subgroups in free groups, Coherence in doubled groups, The relation and second homotopy modules of free Burnside groups of large even exponents, Solving equations of length at most six over torsion-free groups, A property of subgroups of infinite index in a free group, On aspherical presentations of groups, Tarski’s problem about the elementary theory of free groups has a positive solution, Howson property and one-relator groups¹, Knot invariants from symbolic dynamical systems, Prefix monoids of groups and right units of special inverse monoids, The Higman operations and embeddings of recursive groups, Equations over solvable groups, Algebraic and context-free subsets of subgroups, On the word problem for weakly compressible monoids, A class of Artin groups in which the \(K( \pi ,1)\) conjecture holds, Curvature distribution and hyperbolicity, Formalizing free groups in Isabelle/HOL: the Nielsen-Schreier theorem and the conjugacy problem, HNN-extension of involutive multiplicative Hom-Lie algebras, Asymptotic capacity of the range of random walks on free products of graphs, Embeddings into left‐orderable simple groups, Stable commutator length in right‐angled Artin and Coxeter groups, Curvature distribution, relative presentations and hyperbolicity with an application to Fibonacci groups, Embeddings of automorphism groups of free groups into automorphism groups of affine algebraic varieties, An explicit algorithm for normal forms in small overlap monoids, On the separability of subgroups of nilpotent groups by root classes of groups, Yet another Freiheitssatz: Mating finite groups with locally indicable ones, On \(SL(2, \mathbb{C})\)-representations of torus knot groups, Identities in twisted Brauer monoids, Cones and ping-pong in three dimensions, On the Degree of Extension of Some Models Defining Non-Regular Languages, Average-case complexity of the Whitehead problem for free groups, COHERENCE, LOCAL INDICABILITY AND NONPOSITIVE IMMERSIONS, Certain residual properties of HNN-extensions with central associated subgroups, A funny property of sphere and equations over groups, Cubulating small cancellation free products, Turing degrees of nonabelian groups, Subshifts and colorings on ascending HNN-extensions of finitely generated abelian groups, About planar cayley graphs, BIG MAPPING CLASS GROUPS WITH HYPERBOLIC ACTIONS: CLASSIFICATION AND APPLICATIONS, A Cayley graph for F2 × F2 which is not minimally almost convex, Asymptotic Word Length of Random Walks on HNN Extensions, 2-dimensional Coxeter groups are biautomatic, Amalgamated free product in terms of automata constructions, CERTAIN EINSTEIN METRICS ON WEIL BUNDLES, Construction of non-Hopfian groups as direct limits of relatively hyperbolic groups, A Cheeger-Buser-type inequality on CW complexes, Computable paradoxical decompositions, Class-preserving automorphisms of certain HNN extensions, Unnamed Item, Unnamed Item, Unnamed Item, Unnamed Item, An Investigation Into the Cyclically Presented Groups with Length Three Positive Relators, The cohomology class of the mod 4 braid group, Equivariant hyperbolization of 3-manifolds via homology cobordisms, On the separability of abelian subgroups of the fundamental groups of graphs of groups. I, Decidability problem for exponential equations in finitely presented groups, Linearly free graphs, More on chiral polytopes of type \(\{4,4,\dots,4\}\) with solvable automorphism groups, Faithful actions of automorphism groups of free groups on algebraic varieties, MULTIPLICATION TABLES AND WORD-HYPERBOLICITY IN FREE PRODUCTS OF SEMIGROUPS, MONOIDS AND GROUPS, The Craighero–Gattazzo surface is simply connected, Centralisers of Dehn twist automorphisms of free groups, Root extraction in one-relator groups and slenderness, Twisted conjugacy in free products, Cayley graphs of finitely generated groups, Extremal Kleinian groups, Words and Almost Nilpotent Varieties of Groups^#, Including topology change in loop quantum gravity with topspin network formalism with application to homogeneous and isotropic cosmology, Alternating Subalgebras of Hecke Algebras and Alternating Subgroups of Braid Groups, The B B Newman spelling theorem, Deciding if the angle is zero inside free groups, CAT(0) HNN-extensions with non-locally connected boundary, Three-manifolds and Baumslag-Solitar groups, On a Note From Oliver Concerning Generalized Euclidean Group Rings, Tame Automorphisms of Elementary Free Groups, Normal automorphisms of free groups, On the failure of the co-Hopf property for subgroups of word-hyperbolic groups, Groups with one more generator than relators, Locally quasiconvex small-cancellation groups, On one-relator monoids and one-relator groups, On asphericity and the Freiheitssatz for certain finitely presented groups, Amalgamated free products of inverse semigroups, Detecting Fully Irreducible Automorphisms: A Polynomial Time Algorithm, Strange attractors with topologically simple basins, On one-relator products induced by generalized triangle groups I, Groups with one more generator than relators, Pro-finite presentations, Asymptotic cyclic expansion and bridge groups of formal proofs, Maximal abelian subgroups of free profinite groups, Cohomology and finite subgroups of small cancellation quotients of free products, The index of coincidence Nielsen classes of maps between surfaces, Automorphic orbits in free non-associative algebras, Examples of amalgamated products., Malnormality is undecidable in hyperbolic groups, Unnamed Item, Geometry of Infinitely Presented Small Cancellation Groups and Quasi-homomorphisms, Gröbner–Shirshov Basis for HNN Extensions of Groups and for the Alternating Group, Ascending HNN extensions of residually finite groups can be non-Hopfian and can have very few finite quotients, Relative hyperbolicity and Artin groups., What is a free double category like?, Recurrence and periodicity in infinite words from local periods, Triangle groups as subgroups of unitary groups, Unnamed Item, Test Ranks of Free Nilpotent Groups, On the Conjugacy Problem for Cyclic Extensions of Free Groups, On Residualizing Homomorphisms Preserving Quasiconvexity^#, A new test for asphericity and diagrammatic reducibility of group presentations, Language classes associated with automata over matrix groups, On Reachability Problems for Low-Dimensional Matrix Semigroups, Complexity lower bounds for computing the approximately-commuting operator value of non-local games to high precision, Décomposition de Hodge pour l’homologie stable des groupes d’automorphismes des groupes libres, Normal automorphisms of free groups, On automorphisms of relatively free groups, A smooth version of Johnson’s problem on derivations of group algebras, A New Combination Theorem for Relatively Hyperbolic Groups, Strongly Bounded Groups and Infinite Powers of Finite Groups, The Herzog–Schönheim conjecture for finitely generated groups, Group presentations for links in thickened surfaces, The hardness of solving simple word equations, Barely CAT(-1) groups are acylindrically hyperbolic, Conjugacy problem in groups with quadratic Dehn function, Conjugate words and intersections of geodesics in ℍ2, On a conjecture of Papakyriakopoulos, On a conjecture of Papakyriakopoulos, Twisted conjugacy in direct products of groups, Crossings Between Non-homotopic Edges, Distinguished Bases and Monodromy of Complex Hypersurface Singularities, Commutators in $SL_2$ and Markoff surfaces I, On one-relator groups and units of special one-relation inverse monoids