Topics in Invariant Theory: Séminaire d'Algèbre Paul Dubreil Et M.-P. Malliavin 1989-1990 (40éme Année)

ISBN-13: 9783540543770 / Angielski / MiÄ™kka / 1991 / 274 str.

Marie-Paule Malliavin

Opis

These proceedings reflect the main activities of the Paris Seminaire d'Algebre 1989-1990, with a series of papers in Invariant Theory, Representation Theory and Combinatorics. It contains original works from J. Dixmier, F. Dumas, D. Krob, P. Pragacz and B.J. Schmid, as well as a new presentation of Derived Categories by J.E. Bjork and as introduction to the deformation theory of Lie equations by J.F. Pommaret. J. Dixmier: Sur les invariants du groupe symetrique dans certaines representations II.- B.J. Schmid: Finite groups and invariant theory.- J.E. Bjork: Derived categories.- P. Pragacz: Algebro-Geometric applications of Schur S- and Q-polynomials.- F. Dumas: Sous-corps de fractions rationnelles des corps gauches de series de Laurent.- D. Krob: Expressions rationnelles sur un anneau.- J.F. Pommaret: Deformation theory of algebraic and Geometric structures.- M. van den Bergh: Differential operators on semi-invariants for tori and weighted projective spaces.

Spis treści

Sur les invariants du groupe symétrique dans certaines représentations, II.- Finite groups and invariant theory.- Derived categories.- Algebro — Geometric applications of schur s- and q-polynomials.- Sous-Corps de fractions rationnelles des corps gauches de series de laurent.- Expressions rationnelles sur un anneau.- Deformation theory of algebraic and geometric structures.- Differential operators on semi-invariants for tori and weighted projective spaces.