Standard parabolic

In this paper the notion of Coxeter length for a subset of a Coxeter group, as introduced in, is investigated for various subsets of a Coxeter group. Mostly cosets of various subgroups are examined as well as the associated idea of X-posets, which is a vast generalization of the Bruhat order.

17p tuongvidanh 06-01-2019 8 2   Download

In this volume I shall give some guidelines for solving problems in the theories of Fourier series and Systems of Differential Equations and eigenvalue problems. The reader should be aware of that it has never been my intention to write an alternative textbook, since then I would have disposed of the subject in another way. It is, however, my hope that this text can be used as a supplement to the normal textbooks in which one can find all the necessary proofs.

125p sn_buon 29-11-2012 69 5   Download