Results 21 to 30 of about 205,279 (307)

The SHARK integral generation and digestion system

open access: yesJournal of Computational Chemistry, Volume 44, Issue 3, Page 381-396, January 30, 2023., 2023
The BLAS level 3‐driven SHARK integral generation and digestion library is introduced and it is discussed how it leads to greatly simplified workflows and substantial computational speedups. Abstract In this paper, the SHARK integral generation and digestion engine is described.
Frank Neese
wiley   +1 more source

Automated handling of complex chemical structures in Z‐matrix coordinates—The chemcoord library

open access: yesJournal of Computational Chemistry, Volume 44, Issue 5, Page 710-726, February 15, 2023., 2023
We propose an algorithm for a chemically intuitive automatically generated Z‐matrix representation, including reliable back‐and‐forth transformation between coordinate spaces while properly handling linear dependencies. The usefulness of the method is showcased for molecule manipulation and initial guesses of reaction pathways.
Oskar Weser   +2 more
wiley   +1 more source

Jordan centralizer maps on trivial extension algebras

open access: yesDemonstratio Mathematica, 2020
The structure of Jordan centralizer maps is investigated on trivial extension algebras. One may obtain some conditions under which a Jordan centralizer map on a trivial extension algebra is a centralizer map. As an application, we characterize the Jordan
Bahmani Mohammad Ali   +2 more
doaj   +1 more source

On Amenability-Like Properties of a Class of Matrix Algebras

open access: yesJournal of Mathematics, 2022
In this study, we show that a matrix algebra ℒℳIpA is a dual Banach algebra, where A is a dual Banach algebra and 1≤p≤2. We show that ℒℳIpℂ is Connes amenable if and only if I is finite, for every nonempty set I.
M. Rostami, S. F. Shariati, A. Sahami
doaj   +1 more source

Between the enhanced power graph and the commuting graph

open access: yesJournal of Graph Theory, Volume 102, Issue 2, Page 295-303, February 2023., 2023
Abstract The purpose of this note is to define a graph whose vertex set is a finite group G $G$, whose edge set is contained in that of the commuting graph of G $G$ and contains the enhanced power graph of G $G$. We call this graph the deep commuting graph of G $G$.
Peter J. Cameron, Bojan Kuzma
wiley   +1 more source

Nonlinear maps preserving Lie products on triangular algebras

open access: yesSpecial Matrices, 2016
In this paper we prove that every bijection preserving Lie products from a triangular algebra onto a normal triangular algebra is additive modulo centre.
Yu Weiyan
doaj   +1 more source

Cohomology of moduli spaces of Del Pezzo surfaces

open access: yesMathematische Nachrichten, Volume 296, Issue 1, Page 80-101, January 2023., 2023
Abstract We compute the rational Betti cohomology groups of the coarse moduli spaces of geometrically marked Del Pezzo surfaces of degree 3 and 4 as representations of the Weyl groups of the corresponding root systems. The proof uses a blend of methods from point counting over finite fields and techniques from arrangement complements.
Olof Bergvall, Frank Gounelas
wiley   +1 more source

On the Tame automorphisms of differential polynomial algebras

open access: yesAIMS Mathematics, 2020
Let $R\{x,y\}$ be the differential polynomial algebra in two differential indeterminates $x,y$ over a differential domain $R$ with a derivation operator $\delta$.
Zehra Velioǧlu, Mukaddes Balçik
doaj   +1 more source

Two‐phase model for the excavation analysis in partially saturated soft soils using the particle finite element method

open access: yesInternational Journal for Numerical and Analytical Methods in Geomechanics, Volume 47, Issue 2, Page 145-186, 10 February 2023., 2023
Abstract A two‐phase velocity‐pressure stabilized formulation is proposed for the numerical analysis of mechanized excavations in partially saturated soft soils using the Particle Finite Element Method (PFEM). The fully coupled formulation is based on the theory of porous media in association with the Soil Water Characteristic Curve and the porosity ...
Abdiel Ramon Leon Bal, Günther Meschke
wiley   +1 more source

Optimal deployment of indoor wireless local area networks

open access: yesNetworks, Volume 81, Issue 1, Page 23-50, January 2023., 2023
Abstract We present a two‐phase methodology to address the problem of optimally deploying indoor wireless local area networks. In the first phase, we use Helmholtz's equation to simulate electromagnetic fields in a typical environment such as an office floor.
Antoine Oustry   +4 more
wiley   +1 more source

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