On the boundary of the attainable set of the dirichlet spectrum

作者：Brasco Lorenzo; Nitsch Carlo; Pratelli Aldo^*

来源：Zeitschrift fur Angewandte Mathematik und Physik, 2013, 64(3): 591-597.

DOI：10.1007/s00033-012-0250-8

• Dirichlet-Laplacian spectrum
• Shape optimization

Denoting by the set of the pairs for all the open sets with unit measure, and by the union of two disjoint balls of half measure, we give an elementary proof of the fact that has horizontal tangent at its lowest point .

• 出版日期2013-6