Displaying similar documents to “Construction of BGG sequences for AHS structures”

Hasse diagrams for parabolic geometries

Krump, Lukáš, Souček, Vladimír

Similarity:

The invariant differential operators on a manifold with a given parabolic structure come in two classes, standard and non-standard, and can be further subdivided into regular and singular ones. The standard regular operators come in repeated patterns, the Bernstein-Gelfand-Gelfand sequences, described by Hasse diagrams. In this paper, the authors present an alternative characterization of Hasse diagrams, which is quite efficient in the case of low gradings. Several examples are given. ...