Results 21 to 30 of about 111,899 (306)

Fractional operators and their commutators on generalized Orlicz spaces [PDF]

open access: yesOpuscula 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

Theory of Trotter Error with Commutator Scaling

open access: yes, 2021
Product formulas offer a powerful, simple approach to quantum simulation. A new theory quantifying their errors puts these algorithms on a rigorous foundation, showcasing their superiority over other methods.
Andrew M. Childs   +4 more
semanticscholar   +1 more source

Commutativity [PDF]

open access: yesJournal of Pure and Applied Algebra, 2016
We describe a general framework for notions of commutativity based on enriched category theory. We extend Eilenberg and Kelly's tensor product for categories enriched over a symmetric monoidal base to a tensor product for categories enriched over a normal duoidal category; using this, we re-find notions such as the commutativity of a finitary algebraic
Garner, Richard, López Franco, Ignacio
openaire   +3 more sources

The Commutator of Fuzzy Congruences in Universal Algebras

open access: yesInternational Journal of Computational Intelligence Systems, 2021
We develop the commutator theory for fuzzy congruence relations of general universal algebras. In particular, for algebras in modular varieties, we characterize the commutator of fuzzy congruences using the Day’s terms.
Gezahagne Mulat Addis   +3 more
doaj   +1 more source

Commutator method for averaging lemmas [PDF]

open access: yesAnalysis & PDE, 2020
We introduce a commutator method with multipliers to prove averaging lemmas, the regularizing effect for the velocity average of solutions for kinetic equations. This method requires only elementary techniques in Fourier analysis and shows a new range of
P. Jabin, Hsin-Yi Lin, E. Tadmor
semanticscholar   +1 more source

Wear Behavior of Graphic Brush for Motors in the High Humidity of Tropical Climate with Current

open access: yesTribology in Industry, 2022
The motor with commutator brushes pair is widely used in industrial equipment. During operation, the brush and commutator of the motor will wear out, especially in humid tropical monsoon conditions.
Van Hung Pham   +2 more
doaj   +1 more source

Semi-commutations and Partial commutations [PDF]

open access: yesRAIRO - Theoretical Informatics and Applications, 2000
Summary: The aim of this paper is to show that a semi-commutation function can be expressed as the compound of a sequential transformation, a partial commutation function, and the reverse transformation. Moreover, we give a necessary and sufficient condition for the image of a regular language to be computed by the compound of two sequential functions ...
Clerbout, M., Roos, Y., Ryl, Isabelle
openaire   +3 more sources

Commutators and commutator subgroups of the Riordan group [PDF]

open access: yesAdvances in Mathematics, 2023
We calculate the derived series of the Riordan group. To do that, we study a nested sequence of its subgroups, herein denoted by $\mathcal G_k$. By means of this sequence, we first obtain the n-th commutator subgroup of the Associated subgroup. This fact allows us to get some related results about certain groups of formal power series and to complete ...
Luzón, Ana   +2 more
openaire   +3 more sources

Propagators for the Time-Dependent Kohn-Sham Equations: Multistep, Runge-Kutta, Exponential Runge-Kutta, and Commutator Free Magnus Methods. [PDF]

open access: yesJournal of Chemical Theory and Computation, 2018
We examine various integration schemes for the time-dependent Kohn-Sham equations. Contrary to the time-dependent Schrödinger's equation, this set of equations is nonlinear, due to the dependence of the Hamiltonian on the electronic density.
Adrián Gómez Pueyo   +3 more
semanticscholar   +1 more source

Commutator theory for racks and quandles [PDF]

open access: yesJournal of the Mathematical Society of Japan, 2019
We adapt the commutator theory of universal algebra to the particular setting of racks and quandles, exploiting a Galois connection between congruences and certain normal subgroups of the displacement group.
M. Bonatto, David Stanovsk'y
semanticscholar   +1 more source

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