プレプリどんどん: math.RA

arXiv math. RA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-ra/episodes/2026-09-11/ Invariants of Nilpotent Lie Algebras via Geometry and Algebra with a Focus on Computation Quasilinear multiplication in the real Cayley--Dickson tower Graded classification of Leavitt path algebras in terms of strong shift equivalence

arXiv math. RAの新着論文20本をご紹介します。 番組ページ: https://prepridondon.nyoho.jp/channels/math-ra/episodes/2026-09-10/ A Simple Way of Getting Large Examples of Osborn Loops A Truncated Singular-Value Bound for Spectral Variation of Normal Matrices Orthogonal completion of algebraic systems II A quaternionic construction behind $841$-point kissing arrangement in ${\mathbb R}^{12}$ A note on...

arXiv math. RAの新着論文32本をご紹介します。 番組ページ: https://prepridondon.nyoho.jp/channels/math-ra/episodes/2026-09-09/ Extremal Rota-Baxter operators on matrix algebras Finite-Sample Rigidity for Left-Translated Similarity Orbits and Off-Diagonal Quadratic Realizations Integral Dependence over One-Sided Ideals, Part I: Foundations and Classical Applications Cohomology theory of Novikov algeb...

arXiv math. RAの新着論文7本をご紹介します。 番組ページ: https://prepridondon.nyoho.jp/channels/math-ra/episodes/2026-09-07/ Factorization of central polynomials over division algebras Lie Ideals and Lie Derivations of the Algebraic Toeplitz Algebra The ozone group of $U_q^+(B_2)$ Extending Structures for $n$-Lie Algebras Explicit Super-Linear Algebra over K[{\theta}1, {\theta}2]: A General Berezin...

arXiv math. RA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-ra/episodes/2026-09-04/ Isomorphisms of graded semiconnected algebras Construction of $n$-cotorsion pairs in some abelian categories Singular equivalences of $n$-adjoint type and standard eventually homological isomorphisms Beth companions of finitary essentially algebraic theories Fourier Analysis...

arXiv math. RA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-ra/episodes/2026-09-03/ On Strongly $m$-$\Delta$-clean ring Orthogonal completion of algebraic systems Integrable Generators of Polynomial Vector Fields for Complex Classical Lie Groups

arXiv math. RAの新着論文15本をご紹介します。 番組ページ: https://prepridondon.nyoho.jp/channels/math-ra/episodes/2026-09-02/ Integral coefficient rings and homological dimensions of algebras An Algebraic Framework for Data Systems: Classification and Optimization of Algebraic Structures for Data Organization and Coding Hopkins-Levitzki Type Theorems for Groupoid Graded Rings Singular Cholesky Fibe...

arXiv math. RAの新着論文27本をご紹介します。 番組ページ: https://prepridondon.nyoho.jp/channels/math-ra/episodes/2026-09-01/ A Two-Dimensional Counterexample to Radical Equality in Primitive Axial Algebras Type of homomorphisms of complex tori Laws for triangular matrices Corrigendum to "A Characterization of the Unit Group in Z[T x C_2]" Classification of Novikov-Poisson Algebras and Their Applic...

arXiv math. RA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-ra/episodes/2026-08-31/ Integral Orders for the Okubo Algebra and Idempotent Geometries of the $E_8$ Lattice Commuting graphs of Okubo algebras Orthogonality graphs of real Cayley-Dickson algebras. Part II: The subgraph on pairs of basis elements Orthogonality graphs of real Cayley-Dickson algebras....

arXiv math. RA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-ra/episodes/2026-08-28/ Quantales as formal concept lattices Functional identities of degree 2 at two-sided zero products on incidence algebras Diameter of the commutativity graph of the real sedenions On doubly alternative zero divisors in Cayley-Dickson algebras Relation graphs of the sedenion al...

arXiv math. RA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-ra/episodes/2026-08-27/ Hereditary QF-$3^{+}$ rings Cohomology and extensions of Novikov algebras of truncated polynomials Some results on null ideals of finite rings

arXiv math. RA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-ra/episodes/2026-08-26/ An Explicit Counterexample to the Rank-Two Poisson Conjecture Construction of diassociative bialgebras from antisymmetric infinitesimal bialgebras and related algebra structures Free left $h$-Ehresmann semigroups Torsion and exactness A counterexample to a global-dimension bo...

arXiv math. RAの新着論文15本をご紹介します。 番組ページ: https://prepridondon.nyoho.jp/channels/math-ra/episodes/2026-08-25/ Integrable Generators of Algebraic Vector Fields for Real Connected Semi-simple Matrix Groups Quantum regularity of finite dimensional semisimple algebras Leibniz bialgebras constructed by tensor product from Lie bialgebras and perm bialgebras Hochschild cohomology and AS-Go...

arXiv math. RAの新着論文16本をご紹介します。 番組ページ: https://prepridondon.nyoho.jp/channels/math-ra/episodes/2026-08-24/ Barr-Exactness and Congruence-Based Homological Algebra in Ternary $\Gamma$-Semimodules Projectivity and flatness over the endomorphism ring of a finitely generated $(H, {\mathcal C})$-comodule $N$-Koszul algebras of finite global dimension for $N\geq 3$ The Parafree Conject...

arXiv math. RA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-ra/episodes/2026-08-21/ A New Impossibility Region for the $5\times5$ Symmetric Nonnegative Inverse Eigenvalue Problem Disuccessors, Gr\"obner-Shirshov bases and free L-dendriform algebras A rock-paper-scissors Mandelbrot set The lattice of abstract elementary classes of modules Recollements of deri...

arXiv math. RAの新着論文7本をご紹介します。 番組ページ: https://prepridondon.nyoho.jp/channels/math-ra/episodes/2026-08-20/ Entrywise Positivity Preservers on Green Matrices A left and right coherent ring with $\mathcal{PGF}(R)\subsetneq\mathcal{GP}(R)$ Structure and Complexity of 2-Nilpotent Mal'cev Algebras Positivity preservers over finite fields II The $6\times6$ equality case of matrix spaces...

arXiv math. RA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-ra/episodes/2026-08-19/ Decomposition of a square matrix into a product of a nilpotent matrix and an involutive or idempotent matrix Positive definite, positive semidefinite and totally positive matrices over finite fields A strongly compact cardinal yields a left and right coherent ring with $\math...

arXiv math. RAの新着論文16本をご紹介します。 番組ページ: https://prepridondon.nyoho.jp/channels/math-ra/episodes/2026-08-18/ $F$-congruences on $F$-inverse monoids On Locally Generalized radical linear groups over rings Affine Nilpotency and Engel's Theorem for Lie Affgebras Some results on Hom-Novikov superalgebras and Hom-anti-pre-Novikov superalgebras Eigenvalues of locally positive semidefinit...

arXiv math. RAの新着論文6本をご紹介します。 番組ページ: https://prepridondon.nyoho.jp/channels/math-ra/episodes/2026-08-17/ Sum of two strictly n-zero matrices Mittag-Leffler Conditions, Gorenstein Modules and Homological Invariants Local Smith Profiles of Twisted Calabi--Yau Algebras Cleft Extensions for Hopf Algebroids without Antipodes A counterexample to a question on the maximality of purely-...

arXiv math. RA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-ra/episodes/2026-08-14/ Some more talents of the talented monoid of a higher-rank graph Injective Rota-Baxter operators of weight 1 on $F[x]$ Integer-valued polynomials over structural matrix rings Null polynomials over a finite ring need not form a two-sided ideal Simple double Lie algebras on the...

arXiv math. RAの新着論文2本をご紹介します。 番組ページ: https://prepridondon.nyoho.jp/channels/math-ra/episodes/2026-08-13/ Bivariate quaternionic factorizations and surfaces that decompose into two circles The finite basis problem for the flat semirings $S(W)$

arXiv math. RAの新着論文15本をご紹介します。 番組ページ: https://prepridondon.nyoho.jp/channels/math-ra/episodes/2026-08-12/ Direct Sum and Direct Product Decompositions of Multivariate Functions Hybrid core-EP-$(b,c)$ inverses in rings On the Relationship Between Semiring-Induced Valuation Algebra Isomorphisms and Semiring Isomorphisms Fixed-Lowering $\mathfrak{sl}_2$-Triples for Laurent-Shift Op...

arXiv math. RAの新着論文20本をご紹介します。 番組ページ: https://prepridondon.nyoho.jp/channels/math-ra/episodes/2026-08-11/ Amenability is not sensitive to the base field Determinant Factorization of Left Multiplication in the 32 Dimensional Cayley Dickson Algebra Points with Commuting Coordinates over Division Rings $R$-Bunce-Deddens Algebras Pre-symplectic left-symmetric algebras Gorenstein hom...

arXiv math. RA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-ra/episodes/2026-08-10/ Post-Poisson algebras, extended $\mathcal{O}$-operators and extended Poisson Yang-Baxter equations Noncommutative Rational Sums of Squares in Free Algebras Comparing self-dual corings, Frobenius corings and Ringel self-duality

arXiv math. RAの新着論文1本をご紹介します。 番組ページ: https://prepridondon.nyoho.jp/channels/math-ra/episodes/2026-08-07/ Linearisation, splitting property and homotopy algebras