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Blow-Up Results for Space-Time Fractional Stochastic Partial Differential Equations
Potential Analysis ( IF 1.1 ) Pub Date : 2019-03-07 , DOI: 10.1007/s11118-019-09772-0
Sunday A. Asogwa , Jebessa B. Mijena , Erkan Nane

Consider non-linear time-fractional stochastic reaction-diffusion equations of the following type,$$ \partial^{\beta}_{t}u_{t}(x)=-\nu(-{\Delta})^{\alpha/2} u_{t}(x)+I^{1-\beta}[b(u)+ \sigma(u)\stackrel{\cdot}{F}(t,x)] $$in (d + 1) dimensions, where ν > 0,β ∈ (0, 1), α ∈ (0, 2]. The operator \(\partial ^{\beta }_{t}\) is the Caputo fractional derivative while − (−Δ)α/2 is the generator of an isotropic α-stable Lévy process and I1−β is the Riesz fractional integral operator. The forcing noise denoted by \(\stackrel {\cdot }{F}(t,x)\) is a Gaussian noise. These equations might be used as a model for materials with random thermal memory. We derive non-existence (blow-up) of global random field solutions under some additional conditions, most notably on b, σ and the initial condition. Our results complement those of P. Chow in (Commun. Stoch. Anal. 3(2):211–222, 2009), Chow (J. Differential Equations 250(5):2567–2580, 2011), and Foondun et al. in (2016), Foondun and Parshad (Proc. Amer. Math. Soc. 143(9):4085–4094, 2015) among others.

中文翻译:

时空分数阶随机偏微分方程的爆破结果

考虑以下类型的非线性时间分数阶随机反应扩散方程:$$ \ partial ^ {\ beta} _ {t} u_ {t}(x)=-\ nu(-{\ Delta})^ { \ alpha / 2} u_ {t}(x)+ I ^ {1- \ beta} [b(u)+ \ sigma(u)\ stackrel {\ cdot} {F}(t,x)] $$ in (d + 1)的尺寸,其中,ν > 0,β∈(0,1),α∈(0,2],操作者\(\局部^ {\的β} _ {吨} \)是Caputo分数衍生物而-(-Δ)α / 2是各向同性α稳定Lévy过程的产生器,而I 1- β是Riesz分数积分算子。强迫噪声由\(\ stackrel {\ cdot} {F}(t ,X)\)是高斯噪声。这些方程可以用作具有随机热存储的材料的模型。我们在某些附加条件下,尤其是在bσ和初始条件下,得出了全局随机场解的不存在(爆炸)。我们的研究结果补充这些P.周的在(COMMUN斯托赫分析。3(2):211-222,2009),食物(J.微分方程250(5):2567至2580年,2011),和Foondun等人。在(2016),和Foondun Parshad(PROC阿米尔数学SOC。。。。143(9):4085-4094,2015)等。
更新日期:2019-03-07
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