Ordinary differential operators ανά Wang, Aiping 1977-, Zettl, Anton

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Dirac operators in representation theory ανά Huang, Jing-Song

On the existence of the essential spectrum for a class of differential expressions having normal maximal extensions ανά Castillo, Maritina T.

Perturbations of a class of ordinary differential expressions preserving the essential spectrum and the nullities ανά Victoria, Marie Redina L. Mumpar

On the existence of the essential spectrum for a class of differential expressions ανά Castillo, Maritina T.

Invariance theory, the heat equation, and the Atiyah-Singer index theorem ανά Gilkey, Peter B.

Invariance theory, the heat equations and the atiyah-singer index theorem. ανά Gilkey, Peter B.

Spectral theory and wave operators for the Schrndinger equation ανά Berthier, A. M.

Generalized functions and fourier analysis, an introduction ανά Challifour, John L.

On differential operators of infinite order ανά Steen, Pleun van der