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arXiv 1409.7798math.AP
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紧曲面上平均场方程解存在性的新结果

New existence results for the mean field equation on compact surfaces via degree theory

Aleks Jevnikar

摘要:

本文考虑紧致曲面上一类具有指数非线性项的方程,它是由具有任意符号涡的平衡湍流的平均场方程所引起的。利用度理论证明了一个存在性结果。这在拓扑球的情况下产生了新的存在性结果。通过考虑与问题相关的勒雷-绍德尔度的奇偶性来进行证明。用这种方法,我们也恢复了一些已知的以前的结果。

英文摘要:

We consider a class of equations with exponential non-linearities on a compact surface which arises as the mean field equation of the equilibrium turbulence with arbitrarily signed vortices. We prove an existence result via degree theory. This yields new existence results in case of a topological sphere. The proof is carried out by considering the parity of the Leray-Schauder degree associated to the problem. With this method we recover also some known previous results.

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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