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Add to My Calendar

Responsabili:

Federica Galluzzi  ed  Elena Martinengo
 

Nel calendario si indicano i seminari di geometria algebrica e altre attività di interesse, organizzate dall'Università e dal Politecnico di Torino.

Evento

Titolo: Maps of Mori dreams spaces in Cox coordinates
Quando: 24/09/2014 - 14:30
Dove: Palazzo Campana - TORINO
Aula: Aula C
Relatore: Elena Martinengo
Afferenza: Hannover
Locandina: Locandina

Descrizione:

In a recent work Brown and Buczynski described rational maps between toric varieties in terms of their Cox coordinates, lifting a rational map to a multivalued map of Cox rings. 

Their construction turns out to be more natural when considering quotient stacks: toric and Mori dream stacks. In a work in progress with Andreas Hochenegger we develop these generalizations. 
In the talk I will start with the presentation of an example of Brown-Buczynski's multivalued lifting of a map of toric varieties; for that I will recall some basics in toric geometry. 
Then I will explain how this construction becomes natural when looking at quotient stacks. I will briefly recall some notions in stack theory: in particular the notion of canonical stack and the root construction along a divisor over a stack.   
Depending on time I will also describe some open question we are working at.

Sede

Sede: Palazzo Campana - Sito web
Indirizzo: Via Carlo Alberto 10
CAP: 10123
Città: TORINO