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597 papers in math.GR · page 7

  1. math.CO 2026-03-09 reviewed
    Cayley graphs above degree n^{1-c} have Hamilton cycles

    The Lov\'asz conjecture holds for moderately dense Cayley graphs

    Benjamin Bedert +3

  2. math.GR 2026-03-06 reviewed
    Surface groups act properly on tree products

    Groups acting on products of locally finite trees

    J. O. Button

  3. math.NT 2026-03-04 reviewed
    Symmetries transitive on most Markoff solutions mod density-one primes

    Strong Approximation for the Character Variety of the Four-Times Punctured Sphere

    Nathaniel Kingsbury-Neuschotz

  4. math.GR 2026-02-27 reviewed
    Monomorphisms factor uniquely as permutation plus central map

    Automorphisms and monomorphisms of direct products of virtually solvable minimax groups

    Jonas Der\'e +1

  5. math.GT 2026-02-26 reviewed
    Five-holed sphere mapping class group yields distinct hyperbolic quotients

    Cusped spaces for hierarchically hyperbolic groups, and applications to Dehn filling quotients

    Giorgio Mangioni +1

  6. math.GR 2026-02-25 reviewed
    Conditions on groups force unbounded periodicity in quadratic solutions

    Quadratic Equations in Graph Products of Groups and the Exponent of Periodicity

    Volker Diekert +2

  7. math.GR 2026-02-24 reviewed
    Hyperfocal subalgebras equivalent to Frobenius group algebras

    Hyperfocal subalgebras of hyperfocal abelian Frobenius blocks

    Xueqin Hu +2

  8. math.GR 2026-02-23 reviewed
    Geometrically infinite actions have escaping geodesics

    Two Characterizations of Geometrically Infinite Actions on Gromov Hyperbolic Spaces

    Chaodong Yang +1

  9. math.GR 2026-02-21 reviewed
    Restricted centralizers of nth powers force finite-exponent quotients

    Profinite groups with restricted centralizers of powers

    Cristina Acciarri +1

  10. math.GR 2026-02-17 reviewed
    Non-conjugate subgroups separated by finite lifts

    Subgroups with all finite lifts isomorphic are conjugate

    Ido Karshon +4

  11. math.GR 2026-02-15 reviewed
    Klein four-group times certain odd cyclic groups are Schur groups

    Classification of abelian Schur groups I

    Grigory Ryabov

  12. math.GR 2026-02-07 reviewed
    Finite stable groups classified via central extensions of centerless groups

    Stable Extensions of Complete Groups

    Isaac Ochoa

  13. math.GR 2026-02-02 reviewed
    Counting homs to non-abelian groups is #P-hard

    Obstruction theory and the complexity of counting group homomorphisms

    Eric Samperton +1

  14. math.GR 2026-01-28 reviewed
    J-trivial monoid varieties are Cross exactly by excluding 14 subvarieties

    Characterization of Cross varieties of $J$-trivial monoids

    Sergey V. Gusev +2

  15. math.OA 2026-01-27 reviewed
    P_PHP groups produce selfless twisted C*-algebras of stable rank one

    Pureness and stable rank one for reduced twisted group $\mathrm{C}^\ast$-algebras of certain group extensions

    Felipe Flores +3

  16. math-ph 2026-01-26 reviewed
    Clifford-split-octonion algebra realizes massless conformal representations

    Massless Representations in Conformal Space and Their de Sitter Restrictions

    Jean-Pierre Gazeau +2

  17. math.RT 2026-01-23 reviewed
    Bott-Samelson hom modules reflexive but not free in S_n

    Homomorphisms between Bott-Samelson bimodules corresponding to sequences of reflections

    Vladimir Shchigolev

  18. math.RT 2026-01-20 reviewed
    Formula computes squares of Weyl elements over rings

    Weyl elements in isotropic reductive groups

    Egor Voronetsky

  19. math.GR 2026-01-18 reviewed
    Quasigeodesic languages fail to be context-free in nilpotent groups

    Quasigeodesic languages are not context-free in some non-hyperbolic groups

    Arya Saranathan

  20. math.GR 2026-01-17 reviewed
    Flat torus theorems hold for small cancellation complexes

    The small cancellation flat torus theorem

    Karol Duda

  21. math.GR 2026-01-16 reviewed
    Groups exceeding D8's normalized element-order sum have modular lattices

    Finite groups with a large normalized sum of element orders

    Luigi Iorio +1

  22. math.GR 2026-01-13 reviewed
    Jamneshan-Tao conjecture holds for bounded-rank abelian groups

    The Jamneshan-Tao conjecture for finite abelian groups of bounded rank

    Pablo Candela +2

  23. math.CO 2026-01-13 reviewed
    S_n Cayley graph diameter at least n(n-1)/2

    A Lower Bound for the Diameter of Cayley Graph of the Symmetric Group $S_n$ Generated by $(12), (12 \dots n), (1n \dots 2)$

    Grigorii Antiufeev

  24. math.CO 2026-01-13 reviewed
    Dihedral stabilizers force designs imprimitive or Frobenius

    Locally dihedral block designs and primitive groups with dihedral point stabilizers

    Jianfu Chen +2

  25. math.SP 2026-01-03 reviewed
    Normal-matrix preservers reduce to conjugations or eigenvalue orderings

    The combinatorics of permuting and preserving curve-bound spectra

    Alexandru Chirvasitu

  26. math.GR 2025-12-31 reviewed
    Simple groups with (T) achieve any positive second L2 Betti number

    Kazhdan groups of dimension $16$ with prescribed second $\ell^2$-Betti number

    Francesco Fournier-Facio +1

  27. math.LO 2025-12-26 reviewed
    Diophantine problem over power circuits is undecidable

    On the Diophantine problem related to power circuits

    Alexander Rybalov

  28. math.GR 2025-12-22 reviewed
    Centralizer of semisimple element splits as semidirect product

    Centralisers of semi-simple elements are semidirect products

    Fran\c{c}ois Digne (LAMFA) +1

  29. math.GT 2025-12-17 reviewed
    Quasimorphisms extend continuously from diffeos to homeos

    On quasimorphisms and distortion in homeomorphism groups

    Michael Brandenbursky +3

  30. math.GR 2025-12-17 reviewed
    Inductive condition on simple groups implies Galois weight conjecture

    A reduction theorem for the blockwise Navarro Alperin weight conjecture via H-triples

    Zhicheng Feng +2

  31. math.GR 2025-12-15 reviewed
    Möbius function on element centers gives new centralizer relations in p-groups

    A M\"obius function on the centralizer lattice

    William Cocke +2

  32. math.FA 2025-12-15 reviewed
    B(G) fails operator Connes-amenability for groups with property (T)

    On operator Connes-amenability of the Fourier-Stieltjes algebra

    Volker Runde +2

  33. math.GR 2025-12-14 reviewed
    Graphs of groups satisfy f.g.i.p

    The finitely generated intersection property in fundamental groups of graphs of groups

    Jordi Delgado +4

  34. math.GR 2025-12-14 reviewed
    Power semigroups over numerical semigroups admit only the identity automorphism except for

    On automorphism groups of power semigroups over numerical semigroups or over numerical monoids

    Dein Wong +3

  35. math.GN 2025-12-11 reviewed
    Countable compactness lets groups act on joins

    Discontinuous actions on cones, joins, and $n$-universal bundles

    Alexandru Chirvasitu

  36. math.RT 2025-12-07 reviewed
    Bimodules with twisted vertices have endopermutation sources

    On stable equivalences of Morita type with twisted diagonal vertices

    Xin Huang

  37. math.GR 2025-12-07 reviewed
    Lipschitz harmonic functions on nilpotent groups are affine

    The Lipschitz Liouville Property, Affine Rigidity, and Coarse Harmonic Coordinates on Groups of Polynomial Growth

    Mayukh Mukherjee +2

  38. math.CT 2025-12-03 reviewed
    Bilinear product defined intrinsically in semi-abelian categories

    Intrinsic tensor products and a Ganea-type extension of the five-term exact sequence

    Bo Shan Deval +2

  39. cond-mat.soft 2025-12-03 reviewed
    Symbols classify 3D layer groups for fabrics

    An Orbifold Framework for Classifying Layer Groups with an Application to Knitted Fabrics

    Sonia Mahmoudi +2

  40. math.GR 2025-12-01 reviewed
    Maximal centralizers cover any finite group

    Covering by Centralizers

    Mark L. Lewis +1

  41. math.RT 2025-11-29 reviewed
    Distinct weights label distinct Singer eigenvalues below degree q-1

    Spectral Separation and Eigenvalue Labelling for Polynomial Tensor Representations of General Linear Groups

    Dang Vo Phuc

  42. math.GR 2025-11-27 reviewed
    Formula gives profinite genus of Z^n ⋊ C_{p²}

    The profinite genus of the groups $\mathbb{Z}^n\rtimes C_{p^2}$

    Marlon Estanislau +2

  43. math.GR 2025-11-25 reviewed
    Commuting probability positive exactly for finite-by-abelian-by-finite groups

    Coset correct means on groups and the probability that two elements commute

    Armando Martino +1

  44. math.GR 2025-11-11 reviewed
    New bound makes word metric of V match F and T

    A Note on the Metric of Thompson's group V

    Jos\'e Burillo +1

  45. math.GR 2025-11-11 reviewed
    Equal element-order sums imply same order type for LCM-groups

    On the Sum of Element Orders in Finite Abelian Groups

    Mohsen Amiri

  46. math.LO 2025-11-09 reviewed
    Epimorphism among countable groups is complete analytic quasi-order

    The epimorphism relation among countable groups is a complete analytic quasi-order

    Su Gao +3

  47. math.LO 2025-11-07 reviewed
    First cohomology vanishes for definable nilpotents with trivial invariants

    On the cohomology of finite-dimensional nilpotent groups and Lie rings

    Samuel Zamour

  48. math.RT 2025-11-06 reviewed
    Semilinear representations reduce to linear ones on the action kernel

    Character Theory for Semilinear Representations

    James Taylor

  49. math.GT 2025-11-02 reviewed
    Survey gives techniques to build spaces with non-trivial self-covers

    Methods of constructing spaces with non-trivial self covers

    Mathew Timm

  50. math.GR 2025-10-29 reviewed
    Integrability bounds extend to locally compact group couplings

    Obstructions for quantitative measure equivalence between locally compact groups

    Corentin Correia +1