Vafa–Witten invariants from exceptional collections
Supersymmetric D-branes supported on the complex two-dimensional base S of the local
Calabi–Yau threefold KS are described by semi-stable coherent sheaves on S. Under …
Calabi–Yau threefold KS are described by semi-stable coherent sheaves on S. Under …
[HTML][HTML] Silting theory in triangulated categories with coproducts
We introduce the notion of noncompact (partial) silting and (partial) tilting sets and objects in
any triangulated category D with arbitrary (set-indexed) coproducts. We show that …
any triangulated category D with arbitrary (set-indexed) coproducts. We show that …
Semiorthogonal decompositions and birational geometry of del Pezzo surfaces over arbitrary fields
A Auel, M Bernardara - Proceedings of the London …, 2018 - Wiley Online Library
We study the birational properties of geometrically rational surfaces from a derived
categorical perspective. In particular, we give a criterion for the rationality of a del Pezzo …
categorical perspective. In particular, we give a criterion for the rationality of a del Pezzo …
Derived categories of singular surfaces
J Karmazyn, A Kuznetsov, E Shinder - Journal of the European …, 2021 - ems.press
Derived categories of singular surfaces Page 1 © 2021 European Mathematical Society
Published by EMS Press. This work is licensed under a CC BY 4.0 licence. J. Eur. Math. Soc. 24 …
Published by EMS Press. This work is licensed under a CC BY 4.0 licence. J. Eur. Math. Soc. 24 …
[PDF][PDF] Non-commutative crepant resolutions: scenes from categorical geometry
GJ Leuschke - Progress in commutative algebra, 2012 - library.oapen.org
Non-commutative crepant resolutions are algebraic objects defined by Van den Bergh to
realize an equivalence of derived categories in birational geometry. They are motivated by …
realize an equivalence of derived categories in birational geometry. They are motivated by …
[HTML][HTML] Exceptional collections, and the Néron–Severi lattice for surfaces
C Vial - Advances in Mathematics, 2017 - Elsevier
We work out properties of smooth projective varieties X over a (not necessarily algebraically
closed) field k that admit collections of objects in the bounded derived category of coherent …
closed) field k that admit collections of objects in the bounded derived category of coherent …
Maximal lengths of exceptional collections of line bundles
AI Efimov - Journal of the London Mathematical Society, 2014 - academic.oup.com
In this paper, we construct infinitely many examples of toric Fano varieties with Picard
number three, which do not admit full exceptional collections of line bundles. In particular …
number three, which do not admit full exceptional collections of line bundles. In particular …
Hochschild dimensions of tilting objects
Hochschild Dimensions of Tilting Objects Page 1 M. Ballard and D. Favero (2012) “Hochschild
Dimensions of Tilting Objects,” International Mathematics Research Notices, Vol. 2012, No. 11 …
Dimensions of Tilting Objects,” International Mathematics Research Notices, Vol. 2012, No. 11 …
Tilting bundles on rational surfaces and quasi-hereditary algebras
L Hille, M Perling - Annales de l'Institut Fourier, 2014 - numdam.org
Let X be any rational surface. We construct a tilting bundle T on X. Moreover, we can choose
T in such way that its endomorphism algebra is quasi-hereditary. In particular, the bounded …
T in such way that its endomorphism algebra is quasi-hereditary. In particular, the bounded …
Cycles, derived categories, and rationality
A Auel, M Bernardara - Surveys on recent developments in …, 2017 - books.google.com
Our main goal is to give a sense of recent developments in the (stable) rationality problem
from the point of view of unramified cohomology and 0-cycles as well as derived categories …
from the point of view of unramified cohomology and 0-cycles as well as derived categories …