プレプリどんどん: math.GR

arXiv math.GRの新着論文11本をご紹介します。

番組ページ: https://prepridondon.nyoho.jp/channels/math-gr/episodes/2026-07-27/

1. A phase transition in the directional growth of lamplighter groups
2. Finiteness properties and Higman's rope trick
3. Generating simple vigorous groups
4. Automorphisms of Twisted Chevalley Groups of type ${}^2 A_\ell \ (\ell \geq 5)$ over Local Rings
5. Isomorphisms and automorphisms of graph products of groups
6. Clique complexes of groups and order sheaves
7. Quotients of mosaics and related hyperstructures
8. Distortion in the group of locally monotone homeomorphisms of a Cantor set and in the group of generalized interval exchange transformations
9. A random matrix approach to lamplighter groups
10. Local $C^0$-semi-rigidity of meandering-hyperbolic actions
11. Non-existence of Cannon-Thurston maps for hierarchically hyperbolic groups

arXiv math.GRの新着論文9本をご紹介します。

番組ページ: https://prepridondon.nyoho.jp/channels/math-gr/episodes/2026-07-24/

1. An answer regarding factorizations of finite groups
2. Braid groups are not profinitely rigid
3. The exponents of $p$-groups of maximal class and their Schur multipliers
4. Computations of $\tilde{A}_2$ Bruhat intervals via shadows
5. Surjectivity of Engel Maps over trace zero matrices in $\mathrm{M}_2(\mathcal{O})$
6. Critical-exponent stratification and inverse realization on biregular trees
7. Commutator relators of one-relator groups do not force Hopficity, residual finiteness, or automaticity
8. Compressed primitivity problem in free groups
9. Interval Garside groups arising from involutions in finite reflection groups

arXiv math.GRの新着論文12本をご紹介します。

番組ページ: https://prepridondon.nyoho.jp/channels/math-gr/episodes/2026-07-23/

1. On a function related to the Chermak-Delgado measure of a finite group
2. The quantitative non-unique-product landscape at the global minimum: the Nielsen-Soelberg groups
3. Strong non-arithmeticity for Zariski dense subsemigroups
4. Ideals and Solvability in Skew Braces
5. On the finite subgroups of the 2-dimensional general linear groups
6. Polynomial Hilbert-Schmidt stability of the lamplighter group
7. Finite-index Problems in Skew Braces
8. A Product-Neighbourhood Criterion for Fixed Price One
9. A Paper on Calculating the Height and Relational Complexity of the Primitive Actions of $ PSL_{2} (q) $ and $ PGL_{2} (q) $
10. Conjugator length in finitely presented groups
11. Trace-norm rigidity for reduced products of unitary groups and matrix algebras
12. Local limit theorem for the operator norm of products of random matrices

arXiv math.GRの新着論文10本をご紹介します。

番組ページ: https://prepridondon.nyoho.jp/channels/math-gr/episodes/2026-07-22/

1. Least sizes of non-unique-product sets: the Promislow group and a Heisenberg-type candidate
2. Finite quotients of full surface braid groups and complex surfaces of general type: cyclic, dihedral, and extra-special quotients
3. The isomorphism problem for random generalized Baumslag-Solitar groups with many edges
4. Prime and N-Prime graphs of solvable uniformly semi-rational groups
5. Counterexamples to the xz-Conjecture and the Mathieu Conjecture for SU(2)
6. Howson property and finitely generated intersection problem for monogenic inverse semigroups
7. Hopficity of profinite completions of abelian groups
8. Relative free splitting and free factor complexes: An overview
9. A cohomological translation of the Kaplansky radical for profinite groups
10. Geometries admitting trialities for the symmetric and alternating groups

arXiv math.GRの新着論文17本をご紹介します。

番組ページ: https://prepridondon.nyoho.jp/channels/math-gr/episodes/2026-07-21/

1. Solid Duality for Profinite Groups
2. The Margulis Zimmer Conjecture for Nonuniform Arithmetic Groups
3. Simple Skew Braces with Cyclic Sylow Subgroups
4. Black Box Recognition of the Suzuki groups
5. Small growth rates of free groups
6. On Some Problems from the Kourovka Notebook
7. Spinal Hanoi Towers Groups
8. On dimonoids of small order
9. Virtual Surjection and the $n$-$(n+1)$-$(n+2)$ Theorem for Discrete Groups
10. Coarsely Proper Actions of Topological Groups
11. Fricke's trace identity and spin groups
12. On a super-Virasoro group, a semigroup of annuli, and Gauss--Berezin integral operators
13. The group $\mathrm{TK}_1$ of graded and valued division algebras
14. Coincident Poisson structures on principal-bundle moduli spaces
15. $\mathbb{Z}^2$ is flexibly stable in the operator norm
16. From local giants to locality in long-range percolation
17. Kaluzhnin--Krasner embedding of precrossed modules

arXiv math.GRの新着論文3本をご紹介します。

番組ページ: https://prepridondon.nyoho.jp/channels/math-gr/episodes/2026-07-20/

1. Improved Almost laws for $SO(3)$
2. Bidihedral skew braces
3. Profinite rigidity of simple closed curves in surface groups

arXiv math.GRの新着論文8本をご紹介します。

番組ページ: https://prepridondon.nyoho.jp/channels/math-gr/episodes/2026-07-17/

1. The braid group Bn is not a quotient of a quasi-Coxeter interval group of type Dn
2. Exceptional groups and the s-arc-transitivity of vertex-primitive digraphs, II
3. Ascending chains of irreducible lattices, bi-reversible automata and affine arithmetic groups
4. Kernel method for M\"obius transformations and hyperbolic representations of groups
5. Hall complement numbers
6. On the Classification of Stein spaces with Bergman-Einstein metrics
7. Stability for boundary actions of cocompact lattices in Euclidean buildings
8. Several families of incommensurable noncompact hyperbolic Coxeter polytopes

arXiv math.GRの新着論文12本をご紹介します。

番組ページ: https://prepridondon.nyoho.jp/channels/math-gr/episodes/2026-07-16/

1. Braid groups and Burnside groups
2. On Zappa--Sz\'ep products of a wreathed $2$-group and a cyclic group
3. Cyclic Probability of a Finite Group
4. Regularity of Manhattan manifolds and exact dimensionality for relatively Anosov groups
5. Commensurating actions and self-similar groups
6. The Post Correspondence Problem for free groups is undecidable
7. Groups with Finitely Many Shortlex Cones
8. A Finite Skew Brace with Perfect Additive Group and Almost Simple Multiplicative Group
9. Involutions of (twisted) diagram monoids
10. Filling 1-cycles, 2-cycle complexity, and torsion growth
11. Strict concavity of the growth indicator function for relatively Anosov groups
12. CAS I: A Geometric Coding Theorem

arXiv math.GRの新着論文5本をご紹介します。

番組ページ: https://prepridondon.nyoho.jp/channels/math-gr/episodes/2026-07-15/

1. The Conjugacy Problem in Wreath Products
2. Learning the Graphical Nature of Symmetries
3. Noncommutative Floquet--Bloch Theory for Nilpotent Groups:\ Representation-Theoretic Foundations
4. Characterized subgroups on the unit circle
5. Characterizations of quotient spaces for Lindel\"of strongly topological gyrogroups

arXiv math.GRの新着論文14本をご紹介します。

番組ページ: https://prepridondon.nyoho.jp/channels/math-gr/episodes/2026-07-14/

1. Indecomposable solutions with permutation brace of size $p^3$ and permutation braces of small sizes
2. A note on left semibraces
3. Corrigendum to "Transitive permutation groups with trivial four point stabilizers"
4. Irreducible fast sets of bump homeomorphisms generate copies of Thompson's groups $F_n$
5. Group action-stabilizer graph of group actions of a group on a set
6. Local-to-global fixed point properties for graphical C(4)-T(4) and C(6) small cancellation complexes
7. Pure-homogeneous Abelian groups
8. Fixed-point-free elements in two-orbit permutation groups
9. Engel probability in wreath products of $p$-groups
10. A Torsion-free Supersoluble Group with Trivial Outer Automorphism Group
11. Block-exoticity of reduction simple fusion systems on $S(n,p)$
12. Which Wallpaper Groups Arise from Tiled Games?
13. Minimum distance and decoding of Coxeter codes
14. Learning Subgroup Relations Using Siamese Graph Neural Networks