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Title: Bridgeland stability conditions, stability of the restricted bundle, Brill-Noether theory and Mukai's program
Author: Feyzbakhsh, Soheyla
ISNI:       0000 0004 7429 6107
Awarding Body: University of Edinburgh
Current Institution: University of Edinburgh
Date of Award: 2018
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In [Bri07], Bridgeland introduced the notion of stability conditions on the bounded derived category D(X) of coherent sheaves on an algebraic variety X. This topic is originally inspired by concepts in string theory and mathematical physics and has many interesting applications in algebraic geometry. In the first part of the thesis, we provide a direct proof of an important result in [Bri08, BMS16] which states there is a two dimensional family of weak Bridgeland stability conditions on the bounded derived category D(X) of coherent sheaves on a variety X. As a first application of this result, we prove an effective restriction theorem which provides sufficient conditions on a stable locally free sheaf on a projective variety such that its restriction to a hypersurface remains stable. Secondly, we extend and complete Mukai's program to reconstruct a K3 surface from a curve on that surface. We show that the K3 surface containing the curve can be obtained uniquely as a Fourier-Mukai partner of a suitable Brill-Noether locus of vector bundles on the curve.
Supervisor: Bayer, Arend ; Sierra, Susan Sponsor: Not available
Qualification Name: Thesis (Ph.D.) Qualification Level: Doctoral
EThOS ID:  DOI: Not available
Keywords: Algebraic geometry ; derived categories ; Bridgeland stability conditions ; Brill-Noether theory ; K3 surfaces