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arXiv 0901.0224math.AP
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超临界半线性椭圆型方程解的不存在唯一性

Non-existence and uniqueness results for supercritical semilinear elliptic equations

Jean Dolbeault, Robert Stanczy

摘要:

证明了几个含参数的半线性椭圆型方程局部和非局部超临界分歧问题解的不存在性和唯一性。域是星形的,但不需要其他对称性假设。当分歧参数在一定范围内时,唯一性成立。我们的方法可以被看作是,在某些情况下,作为一个扩展的非平凡的解决方案的不存在的结果。它是基于Rellich-Pohozaev型估计。半线性椭圆型方程在许多应用中自然出现,例如天体物理学、流体力学或热力学。我们简化了K. Schmitt和R. Schaaf在所谓的局部乘法的情况下,将它们扩展到对分歧参数的非局部依赖的情况和添加剂的情况下,在局部和非局部设置。

英文摘要:

Non-existence and uniqueness results are proved for several local and non-local supercritical bifurcation problems involving a semilinear elliptic equation depending on a parameter. The domain is star-shaped but no other symmetry assumption is required. Uniqueness holds when the bifurcation parameter is in a certain range. Our approach can be seen, in some cases, as an extension of non-existence results for non-trivial solutions. It is based on Rellich-Pohozaev type estimates. Semilinear elliptic equations naturally arise in many applications, for instance in astrophysics, hydrodynamics or thermodynamics. We simplify the proof of earlier results by K. Schmitt and R. Schaaf in the so-called local multiplicative case, extend them to the case of a non-local dependence on the bifurcation parameter and to the additive case, both in local and non-local settings.

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。

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