中南民族大学学报(自然科学版)
中南民族大學學報(自然科學版)
중남민족대학학보(자연과학판)
JOURNAL OF SOUTH-CENTRAL UNIVERSITY FOR NATIONALITIES(NATURAL SCIENCE EDITION)
2014年
1期
118-122
,共5页
抛物型方程%猝灭%爆破%整体解
拋物型方程%猝滅%爆破%整體解
포물형방정%졸멸%폭파%정체해
parabolic equation%quench%blow up%global solution
考虑一类含有奇性反应函数的半线性抛物型方程的初边值问题,首先讨论了解在有限时刻发生猝灭的条件与在猝灭时刻解对时间导数的爆破性,得到了猝灭时刻的上限估计,而后在球形区域内讨论了整体解存在的条件。
攷慮一類含有奇性反應函數的半線性拋物型方程的初邊值問題,首先討論瞭解在有限時刻髮生猝滅的條件與在猝滅時刻解對時間導數的爆破性,得到瞭猝滅時刻的上限估計,而後在毬形區域內討論瞭整體解存在的條件。
고필일류함유기성반응함수적반선성포물형방정적초변치문제,수선토론료해재유한시각발생졸멸적조건여재졸멸시각해대시간도수적폭파성,득도료졸멸시각적상한고계,이후재구형구역내토론료정체해존재적조건。
In this paper , we consider a class of initial-boundary value problem of semi-linear parabolic differential equation with singular term.Firstly, we prove that the solution quenches and the derivate of solution to time blows up in some finite time, get the estimation value for the upper limit of quenching time , and then discuss existence condition of the global solution in a ball .