A lower bound for principal eigenvalues in parabola-shaped regions
Jin, Zhiren; Jin Zhiren; Wichita State University
Журнал:
Proceedings of the Royal Society of Edinburgh: Section A Mathematics
Дата:
2008
Аннотация:
When a domain is inside a parabola-shaped region, we show that the principal eigenvalues for Dirichlet problems of a linear second-order elliptic operator in non-divergent form are bounded from below by a positive constant that is independent of the domain.
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