arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 2405.13151math.APmath.FA
收藏

具有 Osgood 型非线性的分数阶时间非高斯方程解的不存在性

Non-existence of solutions for a non-Gaussian equation in fractional time with Osgood type nonlinearity

Soveny Solís, Vicente Vergara

AI总结:

本文研究含 Osgood 型非线性的分数阶时间非高斯扩散方程,利用基本解估计分析局部解不存在与瞬时爆发,并结合超解和不动点方法确立全局解存在性及相应临界指数。

摘要:

在非高斯扩散方程框架内,源项中的 Osgood 函数被用于得出局部解不存在的结果。研究发现,局部解不存在的临界指数取决于分数阶导数、非高斯扩散以及非线性项。通过利用基本解的估计,研究了瞬时爆发现象。尽管如此,仍结合超解理论与不动点理论来证明全局解的存在性。在此情况下,全局解存在的临界指数仅取决于上述最后两个参数。

英文摘要:

Osgood functions in the source term are used to produce results for non-existence of local solutions into the framework of non-Gaussian diffusion equations. The critical exponent for non-existence of local solutions is found to depend on the fractional derivative, the non-Gaussian diffusion and the non-linear term. The instantaneous blow-up phenomenon is studied by exploiting estimates of the fundamental solutions. Nevertheless, theory of super-solutions and fixed points are combined for showing existence of global solutions. In this case, the critical exponent for existence of global solutions depends only on the last two parameters above.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

↑