張映輝, 李 聰, 王 易
(湖南理工學(xué)院 數(shù)學(xué)學(xué)院, 湖南 岳陽(yáng) 414006)
一維生物趨化模型的初邊值問(wèn)題
張映輝, 李 聰, 王 易
(湖南理工學(xué)院 數(shù)學(xué)學(xué)院, 湖南 岳陽(yáng) 414006)
主要研究一維生物趨化模型的初邊值問(wèn)題. 在L2范數(shù)充分小, H2范數(shù)不作任何約束的情況下, 通過(guò)構(gòu)造一個(gè)非負(fù)凸熵, 再作它的L2能量估計(jì)、一階能量估計(jì)、二階能量估計(jì), 從而得到初邊值問(wèn)題解的整體存在性和指數(shù)衰減估計(jì).
生物趨化模型; 整體存在性; 指數(shù)衰減估計(jì); 凸熵; 初邊值問(wèn)題
考慮下面的生物趨化模型初邊值問(wèn)題解的整體存在性和指數(shù)衰減估計(jì):
本文的主要結(jié)果為:
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Initial Boundary Value Problem for One Dimensional Biological Chemotaxis Model
ZHANG Ying-hui, LI Cong, WANG Yi
(College of Mathemaics, Hunan Institute of Science and Technology Yueyang 414006)
In this paper, we mainly study the initial boundary value problem of one-dimensional biological chemotaxis model. In the case of sufficiently small L2-norm, and H2-norm without any constraints, by constructing a nonnegative convex entropy,and then making its L2-energy estimates, first-order and second-order energy estimates, we get the global existence and exponential decay estimates of solution to the initial boundary value problem.
biological chemotaxis model; global existence; exponential decay estimation; convex entropy; initial boundary value problem
O175.2
A
1672-5298(2016)03-0004-04
2016-07-11
湖南省大學(xué)生研究性學(xué)習(xí)和創(chuàng)新性實(shí)驗(yàn)計(jì)劃項(xiàng)目(湘教通[2016]283號(hào)); 湖南省教育廳優(yōu)秀青年項(xiàng)目(14B077)
張映輝(1981- ), 男, 湖南祁陽(yáng)人, 博士, 湖南理工學(xué)院數(shù)學(xué)學(xué)院副教授. 主要研究方向: 偏微分方程