Isolated hypersurface singularities as noncommutative spaces / Tobias Dyckerhoff.

Format:

Book

Manuscript

Thesis/Dissertation

Author/Creator:

Dyckerhoff, Tobias.

Contributor:

Pantev, Tony, 1963- advisor.

University of Pennsylvania.

Language:

English

Subjects (All):

Penn dissertations--Mathematics.

Mathematics--Penn dissertations.

Local Subjects:

Penn dissertations--Mathematics.

Mathematics--Penn dissertations.

Physical Description:

vii, 79 pages ; 29 cm

Production:

2010.

Summary:

We study the category of matrix factorizations associated to the germ of an isolated hypersurface singularity. This category is shown to admit a compact generator which is given by the stabilization of the residue field. We deduce a quasi-equivalence between the category of matrix factorizations and the dg derived category of an explicitly computable dg algebra. Building on this result, we employ a variant of Toen's derived Morita theory to identify continuous functors between matrix factorization categories as integral transforms. This enables us to calculate the Hochschild chain and cochain complexes of these categories. Finally, we give interpretations of the results of this thesis in terms of noncommutative geometry based on dg categories.

Notes:

Adviser: Tony Pantev.

Thesis (Ph.D. in Mathematics) -- University of Pennsylvania, 2010.

Includes bibliographical references.