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

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Dirac operators in representation theory par Huang, Jing-Song

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

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

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

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

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

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

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

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