Results 121 to 130 of about 24,858 (293)

Commutators in matrix algebra

open access: yes, 1998
Commutators are elements of the form ab - ba or aba-1b-1. The identities of commutators are important tools iil the stud11 of various algebraic structures, especially in groups and rings.
Ng, Wan Har
core   +1 more source

Ideals and congruences in $L$-algebras and pre-$L$-algebras [PDF]

open access: yesCategories and General Algebraic Structures with Applications
We link the recent theory of $L$-algebras to previous notions of Universal Algebra and Categorical Algebra concerning subtractive varieties,  commutators, multiplicative lattices, and their spectra.
Marino Gran   +2 more
doaj   +1 more source

On Spatial Point Processes With Composition‐Valued Marks

open access: yesInternational Statistical Review, EarlyView.
Summary Methods for marked spatial point processes with scalar marks have seen extensive development in recent years. While the impressive progress in data collection and storage capacities has yielded an immense increase in spatial point process data with highly challenging non‐scalar marks, methods for their analysis are not equally well developed ...
Matthias Eckardt   +2 more
wiley   +1 more source

Generalized Local Morrey Spaces Associated with Ball Banach Function Spaces and Their Application

open access: yesAxioms
This paper is devoted to the analysis of boundedness for fractional integral operators, Calderón–Zygmund singular integral operators, and their corresponding commutators on generalized local Morrey spaces associated with ball Banach function spaces ...
Feiyang Zhang, Jiang Zhou
doaj   +1 more source

Asymptotics of Time‐Varying Processes in Continuous‐Time Using Locally Stationary Approximations

open access: yesJournal of Time Series Analysis, EarlyView.
ABSTRACT We introduce a general theory on stationary approximations for locally stationary continuous‐time processes. Based on the stationary approximation, we use θ$$ \theta $$‐weak dependence to establish laws of large numbers and central limit type results under different observation schemes.
Robert Stelzer, Bennet Ströh
wiley   +1 more source

A lower bound criterion for iterated commutators [PDF]

open access: yes, 2014
International audienceWe consider iterated commutators of multiplication by a symbol function and smooth Calder on-Zygmund operators, described by Fourier multipliers of homogeneity 0.
Dalenc, Laurent, Petermichl, Stefanie
core   +3 more sources

Laws and Reasons Why

open access: yesAnalytic Philosophy, EarlyView.
ABSTRACT Laws play some role in explanations: at the very least, they somehow connect what is explained, or the explanandum, to what explains, or the explanans. Thus, thermodynamical laws connect the match's being struck and its lightning, so that the former causes the latter; and laws about set formation connect Socrates' existence with {Socrates}'s ...
Julio De Rizzo
wiley   +1 more source

Weighted Mixed Weak-Type Inequalities for Littlewood–Paley Square Functions Related to Schrödinger Operators

open access: yesAxioms
Let L=−Δ+V be a Schrödinger operator, where Δ is the Laplacian defined on Rn and the nonnegative potential V satisfies the reverse Hölder inequality.
Chunmei Zhang   +2 more
doaj   +1 more source

On computing local monodromy and the numerical local irreducible decomposition

open access: yesTransactions of the London Mathematical Society, Volume 13, Issue 1, December 2026.
Abstract Similarly to the global case, the local structure of a holomorphic subvariety at a given point is described by its local irreducible decomposition. Geometrically, the key requirement for obtaining a local irreducible decomposition is to compute the local monodromy action of a generic linear projection at the given point, which is always well ...
Parker B. Edwards   +1 more
wiley   +1 more source

On the additive image of zeroth persistent homology

open access: yesTransactions of the London Mathematical Society, Volume 13, Issue 1, December 2026.
Abstract For a category X$X$ and a finite field F$F$, we study the additive image of the functor H0(−;F)∗:rep(X,Top)→rep(X,VectF)$\operatorname{H}_0(-;F)_* \colon \operatorname{rep}(X, \mathbf {Top}) \rightarrow \operatorname{rep}(X, \mathbf {Vect}_F)$, or equivalently, of the free functor rep(X,Set)→rep(X,VectF)$\operatorname{rep}(X, \mathbf {Set ...
Ulrich Bauer   +3 more
wiley   +1 more source

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