Zobrazeno 1 - 10
of 44 451
pro vyhledávání: '"Difference Approximation"'
Derivative-free optimization (DFO) is vital in solving complex optimization problems where only noisy function evaluations are available through an oracle. Within this domain, DFO via finite difference (FD) approximation has emerged as a powerful met
Externí odkaz:
http://arxiv.org/abs/2411.00112
Autor:
Ye, Hancheng, Yuan, Jiakang, Xia, Renqiu, Yan, Xiangchao, Chen, Tao, Yan, Junchi, Shi, Botian, Zhang, Bo
Diffusion models have recently achieved great success in the synthesis of high-quality images and videos. However, the existing denoising techniques in diffusion models are commonly based on step-by-step noise predictions, which suffers from high com
Externí odkaz:
http://arxiv.org/abs/2410.09873
Autor:
Alam, Mehebub, Pandey, Rajni Kant
In this paper, we concentrate on solving second-order singularly perturbed Fredholm integro-differential equations (SPFIDEs). It is well known that solving these equations analytically is a challenging endeavor because of the presence of boundary and
Externí odkaz:
http://arxiv.org/abs/2401.16379
Akademický článek
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Autor:
Zhang, Xindong1 (AUTHOR) liaoyuan1126@163.com, Luo, Ziyang2 (AUTHOR) luoziyang777@outlook.com, Tang, Quan3 (AUTHOR) tangquan123@mail.ustc.edu.cn, Wei, Leilei4 (AUTHOR) leileiwei@haut.edu.cn, Liu, Juan1 (AUTHOR) liujuan1999@126.com
Publikováno v:
Fractal & Fractional. Aug2024, Vol. 8 Issue 8, p495. 17p.
Keller-Segel systems are a set of nonlinear partial differential equations used to model chemotaxis in biology. In this paper, we propose two alternating direction implicit (ADI) schemes to solve the 2D Keller-Segel systems directly with minimal comp
Externí odkaz:
http://arxiv.org/abs/2310.20653
Autor:
Garai, Gobinda, Mandal, Bankim C.
This paper is concerned with the designing, analyzing and implementing linear and nonlinear discretization scheme for the distributed optimal control problem (OCP) with the Cahn-Hilliard (CH) equation as constrained. We propose three difference schem
Externí odkaz:
http://arxiv.org/abs/2307.09016
In this article we develop a high order accurate method to solve the incompressible boundary layer equations in a provably stable manner.~We first derive continuous energy estimates,~and then proceed to the discrete setting.~We formulate the discrete
Externí odkaz:
http://arxiv.org/abs/2306.02097
Akademický článek
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