1.

Record Nr.

UNINA9910484256703321

Autore

Mochizuki Takuro <1972->

Titolo

Donaldson type invariants for algebraic surfaces : transition of moduli stacks / / Takuro Mochizuki

Pubbl/distr/stampa

Berlin, : Springer, c2009

ISBN

3-540-93913-X

Edizione

[1st ed. 2009.]

Descrizione fisica

1 online resource (XXIII, 383 p.)

Collana

Lecture notes in mathematics, , 0075-8434 ; ; 1972

Classificazione

14D2014J6014J80

MAT 142f

MAT 146f

SI 850

Disciplina

516.35

Soggetti

Surfaces, Algebraic

Invariants

Moduli theory

Lingua di pubblicazione

Inglese

Formato

Materiale a stampa

Livello bibliografico

Monografia

Note generali

Bibliographic Level Mode of Issuance: Monograph

Nota di bibliografia

Includes bibliographical references (p. 341-345) and index.

Nota di contenuto

Preliminaries -- Parabolic L-Bradlow Pairs -- Geometric Invariant Theory and Enhanced Master Space -- Obstruction Theories of Moduli Stacks and Master Spaces -- Virtual Fundamental Classes -- Invariants.

Sommario/riassunto

We are defining and studying an algebra-geometric analogue of Donaldson invariants by using moduli spaces of semistable sheaves with arbitrary ranks on a polarized projective surface. We are interested in relations among the invariants, which are natural generalizations of the "wall-crossing formula" and the "Witten conjecture" for classical Donaldson invariants. Our goal is to obtain a weaker version of these relations, by systematically using the intrinsic smoothness of moduli spaces. According to the recent excellent work of L. Goettsche, H. Nakajima and K. Yoshioka, the wall-crossing formula for Donaldson invariants of projective surfaces can be deduced from such a weaker result in the rank two case!