Results 51 to 60 of about 2,364 (134)

Definition and Computation of Tensor‐Based Generalized Function Composition

open access: yesNumerical Linear Algebra with Applications, Volume 33, Issue 1, February 2026.
ABSTRACT Functions are fundamental to mathematics as they offer a structured and analytical framework to express relations between variables. While scalar and matrix‐based functions are well‐established, higher‐order tensor‐based functions have not been as extensively explored.
Remy Boyer
wiley   +1 more source

Instances of the Kaplansky-Lvov multilinear conjecture for polynomials of degree three

open access: yes, 2016
Given a positive integer d, the Kaplansky-Lvov conjecture states that the set of values of a multilinear noncommutative polynomial f on the matrix algebra M_d(C) is a vector subspace.
Dykema, Kenneth J., Klep, Igor
core   +1 more source

Two-weight inequalities for multilinear commutators

open access: yes, 2017
We prove Bloom type two-weight inequalities for commutators of multilinear singular integral operators including Calderón-Zygmund operators and their dyadic counterparts. Such estimates are further extended to a general higher order multilinear setting. The proof involves a pointwise sparse domination of multilinear commutators.
Kunwar, Ishwari, Ou, Yumeng
openaire   +3 more sources

Jordan homomorphisms and T‐ideals

open access: yesJournal of the London Mathematical Society, Volume 113, Issue 2, February 2026.
Abstract Let A$A$ and B$B$ be associative algebras over a field F$F$ with char(F)≠2${\rm char}(F)\ne 2$. Our first main result states that if A$A$ is unital and equal to its commutator ideal, then every Jordan epimorphism φ:A→B$\varphi:A\rightarrow B$ is the sum of a homomorphism and an antihomomorphism. Our second main result concerns (not necessarily
Matej Brešar, Efim Zelmanov
wiley   +1 more source

The GJMS operators in geometry, analysis and physics

open access: yesJournal of the London Mathematical Society, Volume 113, Issue 1, January 2026.
Abstract The GJMS operators, introduced by Graham, Jenne, Mason and Sparling, are a family of conformally invariant linear differential operators with leading term a power of the Laplacian. These operators and their method of construction have had a major impact in geometry, analysis and physics.
Jeffrey S. Case, A. Rod Gover
wiley   +1 more source

On the image of a noncommutative polynomial

open access: yes, 2013
Let $F$ be an algebraically closed field of characteristic zero. We consider the question which subsets of $M_n(F)$ can be images of noncommutative polynomials. We prove that a noncommutative polynomial $f$ has only finitely many similarity orbits modulo
Špenko, Špela
core   +1 more source

Weighted Inequalities for Multilinear Potential Operators and their Commutators

open access: yesPotential Analysis, 2010
The authors prove weighted strong inequalities for the multilinear potential operators \[ T_{\phi}(\vec f)(x)=\int_{(\mathbb R^n)^m} \phi(x-y_1,\dots,x-y_m)\prod_{i=1}^m f_i(y_i) \,d\vec y \] and the commutators \[ T_{\vec b,\phi}(\vec f)(x)=\sum_{j=1}^m T_{b_j,\phi}(\vec f)(x), \] where \(\phi\) is a nonnegative function defined on \((\mathbb R^n)^m\)
Bernardis-Medici, Ana Lucía   +2 more
openaire   +4 more sources

Representation of Multilinear Mappings and s‐Functional Inequality

open access: yesJournal of Mathematics, Volume 2026, Issue 1, 2026.
In the current research, we introduce the multilinear mappings and represent the multilinear mappings as a unified equation. Moreover, by applying the known direct (Hyers) manner, we establish the stability (in the sense of Hyers, Rassias, and Găvruţa) of the multilinear mappings, associated with the single multiadditive functional inequality.
Abasalt Bodaghi, Pramita Mishra
wiley   +1 more source

Sharp Function Estimates for Vector-Valued Multilinear Operator of Multiplier Operator [PDF]

open access: yes, 2008
In this paper, we establish a sharp function estimate for the vector-valued multilinear operator of the ...
Liu, Lanzhe
core  

Holomorphic field theories and higher algebra

open access: yesBulletin of the London Mathematical Society, Volume 57, Issue 10, Page 2903-2974, October 2025.
Abstract Aimed at complex geometers and representation theorists, this survey explores higher dimensional analogs of the rich interplay between Riemann surfaces, Virasoro and Kac‐Moody Lie algebras, and conformal blocks. We introduce a panoply of examples from physics — field theories that are holomorphic in nature, such as holomorphic Chern‐Simons ...
Owen Gwilliam, Brian R. Williams
wiley   +1 more source

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