数学
独特性
贝索夫空间
非线性系统
指数函数
数学分析
对数
标准概率空间
多项式的
函数空间
空格(标点符号)
功能(生物学)
单调函数
应用数学
指数增长
纯数学
插值空间
功能分析
进化生物学
生物
基因
物理
量子力学
生物化学
哲学
语言学
化学
作者
Renhai Wang,Nguyen Huu Can,Anh Tuấn Nguyễn,Nguyễn Huy Tuấn
标识
DOI:10.1016/j.cnsns.2022.107050
摘要
A time-fractional wave equation with an exponential growth source function is considered. This model can be regarded as a modified version of the one studied by Nakamura and Ozawa (1999). The main feature of this model is that the exponential growth nonlinearity is essentially different from the polynomial growth one, and harder in controlling. We first prove the local existence and uniqueness of mild solutions in an Orlicz space by deriving a nonlinear estimate and Lp−Lq estimates the source term and solution operators, respectively. Furthermore, by additionally using specific techniques for estimating integrals, we show that small data solutions exist globally over time in such Orlicz space. The last theoretical result is about the second global-in-time existence of solutions in Besov spaces. Such a result is based on a different nonlinear estimate which is derived from a logarithmic interpolation inequality. The main ingredients of proof are the efficient application of function spaces such as Lebesgue spaces, Orlicz space,Besov spaces and computational techniques involving generalized integrals. In addition, some numerical examples are provided to illustrate theoretical results.
科研通智能强力驱动
Strongly Powered by AbleSci AI