The spectral function of a Riemannian orbifold

The spectral function of an elliptic operator

Lars Hörmander · Acta Mathematica · 1968 · 853 citations · Full text

Spectral Theory, Fourier Transform, Spectral Function +11

The spectrum of positive elliptic operators and periodic bicharacteristics

J. J. Duistermaat, Victor Guillemin · Inventiones mathematicae · 1975 · 597 citations

Elliptic Equation, Positive Elliptic Operators, Functional Analysis +1

The basic Laplacian of a Riemannian foliation

Efton Park, Ken Richardson · American Journal of Mathematics · 1996 · 98 citations

Spectral Theory, Dirichlet Form, Engineering +11

Orbifold Spectral Theory

Carla Farsi · Rocky Mountain Journal of Mathematics · 2001 · 43 citations · Full text

Closed geodesics on orbifolds

K. Guruprasad, André Haefliger · Topology · 2006 · 35 citations

Global Geometry, Geometry, Riemannian Geometry +2