The strong maximum principle in parabolic problems with the p-Laplacian in a domain

The strong maximum principle in parabolic problems with the p-Laplacian in a domain
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域中 p-拉普拉斯抛物线问题中的强极大值原理

DOI:
10.1016/j.aml.2016.07.017
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发表时间:
2017
期刊:
Appl. Math. Lett.
影响因子:
--
通讯作者:
P. Takáć
P. Takáć
中科院分区:
--
文献类型:
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作者:
J. Benedikt;P. Girg;L. Kotrla;P. Takáć

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建立了双非线性抛物问题u:Ω‘×[0,T]→R+的非负连续解u:τ)⊂’×[0,T]R+在时空柱面Ω×(0,τ)中的强极大值原理,具有区域Ω⊂RN和足够短的时间区间(0,τ)⊂(0,T)).我们的方法利用了从膨胀球面波得到的非负解。
We establish a strong maximum principle for a nonnegative continuous solution u: Ω¯×[0, T)→ R+ of a doubly nonlinear parabolic problem in a space–time cylinder Ω×(0, τ) with a domain Ω⊂ R N and a sufficiently short time interval (0, τ)⊂(0, T). Our method takes advantage of a nonnegative subsolution derived from an expanding spherical wave.