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Startpage > News > Calendar of Events > Spherical subcategories

Veranstaltungskalender

Spherical subcategories

Oberseminar Algebra und Algebraische Kombinatorik, 19.11.12

Kurzbeschreibung

Objects of triangulated categories with minimal (1-dimensional) endomorphism ring are called "exceptional" and are well understood. Next, objects with 2-dimensional endomorphism ring and a self-dual property are called "spherical" and also well understood. In this talk, I discuss what happens when the duality property is dropped. It turns out that such objects, called "spherelike" by us, give rise to a canonical maximal subcategory in which they become spherical.

Examples that will occur are ruled surfaces over elliptic curves, and circular quivers with relations.

(Joint work with Andreas Hochenegger and Martin Kalck.)

Weitere Informationen

www.iazd.uni-hannover.de/oberseminar.html

Referent/innen

Dr. David Ploog (Leibniz Universität Hannover)

Veranstalter

Institut fĂźr Algebra, Zahlentheorie und Diskrete Mathematik

Termin

Montag, 19. November 2012, 14:15 bis 15:45 Uhr

Ort

Hauptgebäude (Gebäude 1101, A410)
Welfengarten 1, 30167 Hannover

Ein Verschieben des Kartenausschnitts ist mit gedrückter Maustaste möglich.

Die Karte wurde uns freundlicherweise von Herrn Dr. Tobias Dahinden, Institut für Kartographie und Geoinformatik zur Verfügung gestellt.


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