Pseudodifferential Operators on Compact Manifolds with Lipschitz Boundary
Roland Duduchava, Frank‐Olme Speck
Abstract
Roland Duduchava, Frank‐Olme Speck
Abstract
Abstract Pseudodifferential operators with non‐smooth symbols on a manifold M with Lipschitz boundary are considered. Theorems about order reduction and localization of such operators in Bessel potential H and Hölder‐Zygmund Z(IR n ) spaces are proved. A pseudodifferential operator A with locally sectorial matrix symbol is proved to be Fredholm in the space H ( M ) and Ind A = 0 where s depends on A. Application to a boundary value problem for an elastic body with crack is discussed in conclusion.
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Abstract Pseudodifferential operators with non‐smooth symbols on a manifold M with Lipschitz boundary are considered. Theorems about order reduction and localization of such operators in Bessel potential H and Hölder‐Zygmund Z(IR n ) spaces are proved. A pseudodifferential operator A with locally sectorial matrix symbol is proved to be Fredholm in the space H ( M ) and Ind A = 0 where s depends on A. Application to a boundary value problem for an elastic body with crack is discussed in conclusion.
Key concepts: Mathematics, Pseudodifferential operators, Lipschitz continuity, Bessel function, Boundary (topology), Mathematical analysis, Manifold (fluid mechanics), Pure mathematics