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一类抛物型k-Hessian方程

A Class of Parabolic k-Hessian Equations
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摘要 考虑抛物型k-Hessian方程-u_t+log S_k(λ(D^2u))=φ(x,t,u)的第一初边值问题.对于一般的光滑区域Ω,在方程存在可容许下解的条件下,建立了可容许解的C^(2,1)(Q_T)先验估计,并利用连续性方法得到方程可容许解的存在性.当φ_u≥0时,解是唯一的. We investigated the first initial boundary value problem of -ut+ log Sk(λ(D2u)) =Ψ{x,t,u),which is a class of parabolic k-Hessian equations.In the general smooth regionΩ,under the admissible subsolution,a prior estimation of the admissible solution was given.The existence of the admissible solution was obtained by using the method of continuity.The solution is unique if
出处 《吉林大学学报(理学版)》 CAS CSCD 北大核心 2013年第3期341-348,共8页 Journal of Jilin University:Science Edition
基金 国家自然科学基金(批准号:J1030101)
关键词 完全非线性 抛物型 Hessian方程 fully nonlinear parabolic type Hessian equation
作者简介 任长宇(1978-),男,汉族,博士,讲师,从事偏微分方程的研究,E-mail:rency@jlu.edu.cn. 通信作者:牛颖(1988-),女,汉族,从事偏微分方程的研究,E-mail;niuying1009@mails.jlu.edu.cn.
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参考文献11

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