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425 papers in math.RA · page 3

  1. math.RA 2026-04-30 reviewed
    Nullity of A2 decides when A1 X^k + A2 Y^k covers all n x n matrices

    Polynomial Maps with Constants on Matrix Algebra

    Prachi Saini +1

  2. math.RT 2026-04-30 reviewed
    Unique generic module builds all torsionfree divisible modules

    From finite to infinite length modules over tame hereditary algebras

    Lidia Angeleri H\"ugel +2

  3. math.RA 2026-04-30 reviewed
    Rota-Baxter operators deform matrices for sliding-mode stability

    Study of Rota-Baxter Operators in Matrix $C^*$-Algebras Motivated by Toeplitz Structures, and Applications to Sliding Mode Control

    Marwa Ennaceur

  4. math.NT 2026-04-29 reviewed
    Power semigroups of numerical semigroups have trivial automorphism groups

    On the automorphisms of the power semigroups of a numerical semigroup

    Salvatore Tringali +1

  5. math.RA 2026-04-29 reviewed
    Obstruction class decides when derivations lift through Lie algebra extensions

    Non-abelian Extensions of Lie algebras with derivations

    Jun Jiang +1

  6. math.CT 2026-04-29 reviewed
    Silting subcategory finiteness equivalent to t-structure restriction

    Metrics on triangulated categories and restrictions of (co)-$t$-structures

    Wei Hu +1

  7. math.RA 2026-04-28 reviewed
    The paper examines the exterior spinor model S = wedge V(W) for the standard hyperbolic…

    Exterior-Model Spinors in Split Rank: Exact Levi Images and Square-Determinant Obstructions

    Arthur F. Ramos +2

  8. math.RA 2026-04-28 reviewed
    Simple transposed Poisson algebras are all W_n(q) mutations

    On simple transposed Poisson algebras

    Amir Fern\'andez Ouaridi

  9. math.GR 2026-04-28 reviewed
    Continuous ring unit groups lack non-trivial unitary representations

    Unitary representations and von Neumann's continuous geometries

    Friedrich Martin Schneider +1

  10. cs.SC 2026-04-28 reviewed
    Haskell package manipulates tree and graph algebras symbolically

    Arboretum.hs: Symbolic manipulation for algebras of graphs

    Eugen Bronasco +2

  11. math.RA 2026-04-28 reviewed
    Three DGA equivalence problems shown to be undecidable

    Undecidability problems for semifree DG algebras

    Ciprian Manolescu +1

  12. math.RA 2026-04-28 reviewed
    Nilpotency of transposed Poisson algebras equals nilpotency of left multiplications

    Nilpotency and Frattini theory for transposed Poisson algebras

    Jiarou Jin +1

  13. math.RT 2026-04-28 reviewed
    Orbit atom spectrum subsets classify tensor torsion-free classes

    Atom spectra of symmetric monoidal abelian categories and classification of subcategories

    Shunya Saito

  14. math.AT 2026-04-28 reviewed
    Loop homology of polyhedral products decomposes as colimit

    A colimit decomposition for the loop homology of polyhedral products

    Lewis Stanton +1

  15. math.AT 2026-04-27 reviewed
    A∞-algebras model rational fiberwise THH transfer

    A rational model for the fiberwise THH transfer II: $A_\infty$-algebras

    Florian Naef +1

  16. math.RA 2026-04-27 reviewed
    Graphs produce k-step nilpotent symplectic Lie algebras

    $k$-step nilpotent symplectic Lie algebras associated with graphs

    Josefina Barrionuevo +2

  17. math.RA 2026-04-27 reviewed
    Every lim¹ group equals the cokernel of a module to its completion

    The structure of $\lim^1$-groups

    Ioannis Emmanouil

  18. math.AG 2026-04-27 reviewed
    Generalized associativity strictifies F1 hyper-addition to group addition

    Hyper-Operations and Extension of Scalars from $\mathbb{F}_1$ to $\mathbb{Z}$

    Luqiao Xu

  19. math.AC 2026-04-27 reviewed
    1960s uniqueness condition for Euclidean division still holds

    A Necessary and Sufficient Condition for Uniqueness of Euclidean Division

    Senan Sekhon

  20. eess.SY 2026-04-27 reviewed
    Dual compiler extracts exact Lie derivatives for neural barriers

    Extracting Exact Lie Derivatives Without Backpropagation: A Dual Compiler for Neural Control Barrier Functions

    Mohammadreza Kamaldar

  21. math.RA 2026-04-25 reviewed
    Ring with finitely many zero-divisors is finite with bounded order

    Rings with finitely many zero divisors

    Michael Kinyon

  22. math.RA 2026-04-25 reviewed
    Maximal commutative subalgebras in M_6 have dimension at least 6

    On the minimal dimension of maximal commutative subalgebras of $M_6(k)$

    Ma{\l}gorzata Nowak-K\k{e}pczyk

  23. math.RA 2026-04-24 reviewed
    Left and right ranks match for quaternion Hankel matrices

    On the rank of quaternion Hankel matrices

    Philippe Flores +2

  24. math.RA 2026-04-24 reviewed
    Left and right ranks match for quaternion Hankel matrices

    On the rank of quaternion Hankel matrices

    Philippe Flores +2

  25. math-ph 2026-04-24 reviewed
    Affine supertrusses yield affine superbraces

    Affine Supertrusses and Superbraces

    Andrew James Bruce

  26. math-ph 2026-04-24 reviewed
    Supertrusses yield superbraces and generalize Yang-Baxter to superschemes

    Affine Supertrusses and Superbraces

    Andrew James Bruce

  27. math.GR 2026-04-24 reviewed
    Compact simple Lie skew braces are trivial or have simple groups

    On simple compact Lie skew braces

    Marco Damele +1

  28. math.RA 2026-04-23 reviewed
    Helix endomorphism algebras on elliptic curves are quotients by normal elements

    Three-periodic helices on elliptic curves and their associated regular algebras

    Daniel Chan +1

  29. math.RT 2026-04-23 reviewed
    Quantizations of GL_N nilpotent orbits fully classified in positive characteristics

    Quantization of nilpotent coadjoint $GL_N$-orbit closures in positive characteristics

    Filippo Ambrosio +2

  30. math.AG 2026-04-23 reviewed
    Zero-entropy automorphisms satisfy volume growth bound d + k(k+2)/4

    A lower bound for polynomial volume growth of automorphisms of zero entropy

    Fei Hu +1

  31. math.AG 2026-04-23 reviewed
    Gap forbids intermediate volume growth for zero-entropy automorphisms

    A lower bound for polynomial volume growth of automorphisms of zero entropy

    Fei Hu +1

  32. math.RA 2026-04-23 reviewed
    Lambda-construction globalizes partial actions on non-associative algebras

    Globalization of Partial Group Actions on Not Necessarily Associative Algebras and Covariant Representations

    Mikhailo Dokuchaev +2

  33. math.RA 2026-04-22 reviewed
    Left modularity equals extremality in key infinite lattice families

    Left modularity and extremality for (some) infinite lattices

    Sota Asai +3

  34. math.RA 2026-04-22 reviewed
    Trivial extensions of Koszul AS algebras match derived categories

    Trivial extensions of Koszul Artin-Schelter regular algebras

    Kenta Ueyama

  35. math.CT 2026-04-22 reviewed
    AB5 categories can have no non-zero injectives

    Injectivity paucity in AB5 categories of oversize chains

    Alexandru Chirvasitu

  36. math.RA 2026-04-22 reviewed
    Constants in Jacobson radicals of q-skew Ore extensions are nil

    On a $q$-Skew Amitsur's Theorem

    Aristide F. J.-C. Launois

  37. math.RA 2026-04-22 reviewed
    Free Poisson algebra with Rota-Baxter operator is constructed

    Free Poisson Rota-Baxter algebra

    Vsevolod Gubarev

  38. math.AG 2026-04-21 reviewed
    Border subrank computed exactly for higher-order algebra tensors

    Border subrank of higher order tensors and algebras

    Chia-Yu Chang +2

  39. math.RA 2026-04-21 reviewed
    Summand-lifting stabilizes C4*-modules under exact sequences

    Exact-Sequence Stability and Ambient Realizations for $C4^{\ast}$-Modules

    Chandrasekhar Gokavarapu (Government College (Autonomous) +3

  40. math.GR 2026-04-21 reviewed
    New homomorphisms fix solubility equivalence for braces and solutions

    Addendum/Corrigendum to "On solubility of skew left braces and solutions of the Yang-Baxter equation"

    A. Ballester-Bolinches +3

  41. cs.SC 2026-04-21 reviewed
    New package computes path signature tensors in Julia

    SignatureTensors.jl: A Package for Signature Tensors in Julia

    Gabriel Riffo +1

  42. math.AC 2026-04-21 reviewed
    Change-of-rings theorems bound small finitistic dimension

    Change-of-Rings Theorems for the Small Finitistic Dimension

    Tao Xiong +3

  43. math.RA 2026-04-21 reviewed
    Hyper operators equate symplectic and Hessian structures on Lie algebras

    Hyper relative differential operators on Lie algebras

    Sofiane Bouarroudj +2

  44. math.RA 2026-04-20 reviewed
    Skew polynomial fractions yield nonaffine division algebras

    `New' examples of skew fields not finitely generated as algebras

    K. R. Goodearl +1

  45. math.OA 2026-04-20 reviewed
    Type semigroups get explicit formulas for self-similar graph actions

    An introduction to separated graphs and their type semigroups

    Pere Ara

  46. math.RT 2026-04-20 reviewed
    Separable extensions preserve homological invariants in triangulated categories

    Homological Aspects of Separable Extensions of Triangulated Categories

    Miltiadis Karakikes +1

  47. math.RA 2026-04-20 reviewed
    Witt algebra local half-derivations reduce to ordinary ones

    Local and 2-local $\frac{1}2$-derivations of infinite-dimensional Lie algebras

    Shavkat Ayupov +2

  48. math.RA 2026-04-20 reviewed
    Seaweeds are rigid exactly when indecomposable

    Rigidity and Cohomology of Seaweed Lie Algebras

    Vincent E. Coll +2

  49. math.RA 2026-04-19 reviewed
    Jordan multiplications generate every linear map on matrices

    The Jordan multiplication semigroup of matrix algebras is the full endomorphism semigroup

    Ilja Gogi\'c +2

  50. math.RA 2026-04-19 reviewed
    Jordan map property extends to n-Jordan maps under ring conditions

    A note on $n$-Jordan homomorphisms

    M. El Azhari