## a syzygy?

Who?
Daniele Agostini (HU Berlin)
When?
2014/10/24, 16:00
Where?
HU Berlin, at the BMS Seminar Room (RUD 25 1.023)
About what?

In astronomy, a "syzygy" is an alignment of three celestial bodies. The term was imported into mathematics by Sylvester to denote a linear relation between the generators of a module. Nowadays, syzygies and, more generally, free resolutions are powerful tools to relate the algebra and geometry of a projective variety. In this talk I will introduce these concepts and present some concrete examples.