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格子と歪ブレースと表現とコホモロジー - 2026/9/22の論文31本
プレプリどんどん: math.GR · 22 сентября 2026 г. · 1 ч 6 мин
arXiv math.GRの新着論文31本をご紹介します。 番組ページ: https://prepridondon.nyoho.jp/channels/math-gr/episodes/2026-09-22/ A Machine-Checked Proof that Gardam's $\tilde{A}_2$ Lattice Does Not Have Unique Products Compatible additions on a six-element commutative semigroup: equational bases and subvariety lattices Skew braces whose left series is not generated by right-normed star products On Intersections of System Normalizers The Hall-Janko Simple Group and the Icosian Leech Lattice Octonions, Albert vectors and the group ${}^2 \mathrm{E}_6(F)$ Boundary Kernel Rigidity and Infinite-Dimensional Complex Hyperbolic Representations On the Moufang condition for polar spaces Computing Bogomolov multipliers and finitary Bogomolov multipliers of infinite groups Characterizing normal Hall subgroups by character degrees, II Random groups in the square model have property (T) at densities over $\frac{5}{12}$ Exotic Unit Groups of Sylvester Rank Completions A Continuum in the Lattice of Semiring Varieties: The Interval $[\mathsf{V}(S), \mathsf{V}(S^0)]$ Commutators of signed $n$-cycles Inverse Baer deformations and finite simple skew braces of nilpotent type Skew braces of size $p^2q^2$. The cyclic Sylow $q$-subgroup case On the inductive blockwise Alperin weight condition for type $\mathsf B$ and type $\mathsf C$ Determinant for automorphisms of Zappa-Sz\'{e}p product of groups Taming Reidemeister zeta functions on virtually polycyclic groups Fixed point properties and cohomology of Banach representations of arithmetic groups Abstract regular polytopes of $G_2(q)$ in even characteristic Iwasawa theory of class field towers Almost Trivial Units in Group Rings A twelve-term exclusion for the small Davenport constant of $E_2\times C_3^r$ Associativity of the $\star$-product of skew braces Counting tangles in coverings of closed 2-orbifolds via ribbon categories The quasi-isometry classes of Galton--Watson trees Automorphism Groups of Three-Dimensional Leibniz Algebras: A Complete Description The theory of nonabelian free groups has no model companion Nonvanishing of cohomology for groups Bi-exact Wreath-like Product Groups