Chiti, Giuseppe An isoperimetric inequality for the eigenfunctions of linear second order elliptic operators. (English) Zbl 0484.35067 Boll. Unione Mat. Ital., VI. Ser., A 1, 145-151 (1982). Page: −5 −4 −3 −2 −1 ±0 +1 +2 +3 +4 +5 Show Scanned Page Cited in 3 ReviewsCited in 17 Documents MSC: 35P20 Asymptotic distributions of eigenvalues in context of PDEs 35J25 Boundary value problems for second-order elliptic equations Keywords:isoperimetric inequalities PDFBibTeX XMLCite \textit{G. Chiti}, Boll. Unione Mat. Ital., VI. Ser., A 1, 145--151 (1982; Zbl 0484.35067)