Bounded Poincaré operators for twisted and BGG complexes

04/14/2023
by   Andreas Čap, et al.
0

We construct bounded Poincaré operators for twisted complexes and BGG complexes with a wide class of function classes (e.g., Sobolev spaces) on bounded Lipschitz domains. These operators are derived from the de Rham versions using BGG diagrams and, for vanishing cohomology, satisfy the homotopy identity dP+Pd=I in degrees >0. The operators preserve polynomial classes if the de Rham versions do so.

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