摘要
利用变分方法、Nehari流形和对数Sobolev不等式,研究一类带有变号对数非线性项的p-Laplacian方程解的多重性问题,将Nehari流形N分为N~+、N~-和N~0 3个部分,证明N~+有界,并且相应的能量泛函在N~+上有一个极小元,证明泛函在N~-上的极小化序列有界并有一个极小元。结果表明,该p-Laplacian方程至少有2个非平凡解。
The multiplicity of solutions for a class of p-Laplacian equation with sign-changing logarithmic nonlinearity was studied by using variational methods,Nehari manifold, and logarithmic Sobolev inequality. The Nehari manifold N was divided into 3 parts of N~+, N~-, and N~0 to prove that N~+ was bounded, the energy functional had a minimizer on N~+, and a minimizing sequence of the energy functional was bounded having a minimizer on N~-. The results show that the p-Laplacian equation has at least 2 nontrivial solutions.
引文
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