Results 41 to 50 of about 277,196 (336)

Metaheuristic to Optimize Computational Convergence in Convection-Diffusion and Driven-Cavity Problems

open access: yesMathematics, 2021
This work presents an optimization proposal to better the computational convergence time in convection-diffusion and driven-cavity problems by applying a simulated annealing (SA) metaheuristic, obtaining optimal values in relaxation factors (RF) that ...
Juana Enríquez-Urbano   +5 more
doaj   +1 more source

Banach spaces of $\mathcal I$-convergent sequences

open access: yes, 2023
We study the space $c_{0,\mathcal{I}}$ of all bounded sequences $(x_n)$ that $\mathcal{I}$-converge to $0$, endowed with the sup norm, where $\mathcal{I}$ is an ideal of subsets of $\mathbb{N}$. We show that two such spaces, $c_{0,\mathcal{I}}$ and $c_{0,\mathcal{J}}$, are isometric exactly when the ideals $\mathcal{I}$ and $\mathcal{J}$ are isomorphic.
Rincón-Villamizar, Michael A.   +1 more
openaire   +2 more sources

Fourier-integral-operator approximation of solutions to first-order hyperbolic pseudodifferential equations I: convergence in Sobolev spaces

open access: yes, 2005
An approximation Ansatz for the operator solution, $U(z',z)$, of a hyperbolic first-order pseudodifferential equation, $\d_z + a(z,x,D_x)$ with $\Re (a) \geq 0$, is constructed as the composition of global Fourier integral operators with complex phases ...
Rousseau, Jerome Le
core   +5 more sources

On deferred I-statistical rough convergence of difference sequences in neutrosophic normed spaces [PDF]

open access: yesNeutrosophic Sets and Systems
In this study, using the concepts of deferred density and the notion of the ideal I, we extend the idea of rough convergence by introducing the notion of deferred I–statistical rough convergence via difference operators in the framework of neutrosophic ...
Mukhtar Ahmad   +2 more
doaj   +1 more source

$\mathcal{I}_2$-Uniform Convergence of Double Sequences of Functions In $2$-Normed Spaces

open access: yesCommunications in Advanced Mathematical Sciences, 2022
In this work, we discuss various types of $\mathcal{I}_2$-uniform convergence and equi-continuous for double sequences of functions. Also, we introduce the concepts of $\mathcal{I}_2$-uniform convergence, $\mathcal{I}_2^*$-uniform convergence, $\mathcal ...
Mukaddes Arslan   +2 more
doaj   +1 more source

Phase diagram of the one-dimensional Holstein model of spinless fermions [PDF]

open access: yes, 1998
The one-dimensional Holstein model of spinless fermions interacting with dispersionless phonons is studied using a new variant of the density matrix renormalisation group.
A. S. Alexandrov   +23 more
core   +2 more sources

Opportunism in Multiuser Relay Channels: Scheduling, Routing and Spectrum Reuse

open access: yes, 2007
In order to understand the key merits of multiuser diversity techniques in relay-assisted cellular multihop networks, this paper analyzes the spectral efficiency of opportunistic (i.e., channel-aware) scheduling algorithms over a fading multiuser relay ...
Oyman, Ozgur
core   +2 more sources

Topological Scott Convergence Theorem

open access: yes, 2019
Recently, J. D. Lawson encouraged the domain theory community to consider the scientific program of developing domain theory in the wider context of $T_0$ spaces instead of restricting to posets.
Andradi, Hadrian, Ho, Weng Kin
core   +1 more source

Effect of higher orbital angular momenta in the baryon spectrum [PDF]

open access: yes, 2001
We have performed a Faddeev calculation of the baryon spectrum for the chiral constituent quark model including higher orbital angular momentum states.
A. Valcarce   +9 more
core   +3 more sources

Spatiotemporal and quantitative analyses of phosphoinositides – fluorescent probe—and mass spectrometry‐based approaches

open access: yesFEBS Letters, EarlyView.
Fluorescent probes allow dynamic visualization of phosphoinositides in living cells (left), whereas mass spectrometry provides high‐sensitivity, isomer‐resolved quantitation (right). Their synergistic use captures complementary aspects of lipid signaling. This review illustrates how these approaches reveal the spatiotemporal regulation and quantitative
Hiroaki Kajiho   +3 more
wiley   +1 more source

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