Eigenvalue comparison theorems and its geometric applications

A Treatise on the Theory of Bessel Functions.

1923 • 9,834 citations

A Treatise on the Theory of Bessel Functions

1944 • 5,630 citations

Le Spectre D'une Variété Riemannienne

1971 • 858 citations

Geometry of Manifolds

1964 • 822 citations

Le Spectre d’une Variété Riemannienne

1971 • 634 citations

Isoperimetric Inequalities and Their Applications

1967 • 385 citations

An upper bound to the spectrum of $\Delta $ on a manifold of negative curvature

1970 • 199 citations

Contributions to Riemannian Geometry in the Large

1959 • 160 citations

The relation between the laplacian and the diameter for manifolds of non-negative curvature

1968 • 22 citations