Results 11 to 20 of about 4,370 (257)
Journal of Inequalities and Applications, 2022 In this paper, we discuss the properties for commutators and iterated commutators generated by the multilinear ω-CZO and weighted Lipschitz functions on Lebesgue space.
Jie Sun
doaj +1 more source
Regularity of Commutators of the One-Sided Hardy-Littlewood Maximal Functions
Journal of Function Spaces, 2020 In this paper, the regularity properties of two classes of commutators of the one-sided Hardy-Littlewood maximal functions and their fractional variants are investigated.
Daiqing Zhang
doaj +1 more source
Associativity as commutativity [PDF]
Journal of Symbolic Logic, 2006 AbstractIt is shown that coherence conditions for monoidal categories concerning associativity are analogous to coherence conditions for symmetric strictly monoidal categories, where associativity arrows are identities. Mac Lane's pentagonal coherence condition for associativity is decomposed into conditions concerning commutativity, among which we ...
Došen, Kosta, Petrć, Zoran
openaire +3 more sources
Conciseness of coprime commutators in finite groups [PDF]
, 2014 Let \(G\) be a finite group. We show that the order of the subgroup generated by coprime \(\gamma_k\)-commutators (respectively \(\delta_k\)-commutators) is bounded in terms of the size of the set of coprime \(\gamma_k\)-commutators (respectively ...
Acciarri C +5 more
core +2 more sources
Writing commutators of commutators as products of cubes [PDF]
Communications in Algebra, 2021 It is known that commutators of commutators can be written as products of cubes, with the current upper bound on the number of cubes being 60. We discuss how proofs extracted via coset enumeration can be used to investigate this problem, and exhibit a rewriting using only 14 cubes.
openaire +3 more sources
Some estimates for commutators of bilinear pseudo-differential operators
Open Mathematics, 2022 We obtain a class of commutators of bilinear pseudo-differential operators on products of Hardy spaces by applying the accurate estimates of the Hörmander class. And we also prove another version of these types of commutators on Herz-type spaces.
Yang Yanqi, Tao Shuangping
doaj +1 more source
Fractional operators and their commutators on generalized Orlicz spaces [PDF]
Opuscula Mathematica, 2022 In this paper we examine boundedness of fractional maximal operator. The main focus is on commutators and maximal commutators on generalized Orlicz spaces (also known as Musielak-Orlicz spaces) for fractional maximal functions and Riesz potentials.
Arttu Karppinen
doaj +1 more source
Operators with commutative commutants.
Michigan Mathematical Journal, 1988 Given operators M and N on a Hilbert space H, suppose that M (resp. N) is the direct sum of k (resp. n) copies of an operator A having a commutative commutant. Suppose further that m and k are countable cardinalities (or, any cardinalities if H is separable) and that N is a quasi-affine transform of M (i.e., \(NX=XM\) for some injective operator X with
Radjabalipour, M., Radjavi, H.
openaire +3 more sources
Mathematics, 2022 This paper is devoted to exploring the mapping properties for the commutator μΩ,b generated by Marcinkiewicz integral μΩ with a locally integrable function b in the generalized Campanato spaces on the generalized Morrey spaces.
Fuli Ku, Huoxiong Wu
doaj +1 more source
Estimates for commutators of orthogonal fourier series [PDF]
, 1996 In this paper we study weighted norm inequalities for the commutators [b, Sn] where b is a BMO function and Sn denotes the nth partial sum of the Fourier series relative to a system of orthogonal polynomials on [-1, 1] with respect to general weights ...
Guadalupe, J.J. +2 more
core +1 more source