**SMS scnews item created by John Enyang at Thu 11 Jul 2013 1851**

Type: Seminar

Distribution: World

Expiry: 19 Jul 2013

**Calendar1: 19 Jul 2013 1205-1255**

**CalLoc1: Carslaw 373**

Auth: enyang@penyang.pc (assumed)

### Algebra Seminar

# Yangians and slices in the affine Grassmannian

### Yacobi

###### Friday 19th July, 12:05-12:55pm, Carslaw 373

###### Speaker:

Oded Yacobi (University of Sydney)

###### Title:

Yangians and slices in the affine Grassmannian

###### Abstract:

I will discuss an ongoing project with Kamnitzer, Webster, and Weekes to study quantizations of slices in the affine Grassmannian. These slices arise as symplectic leaves of the affine Grassmannian and are also natural from the point of view of geometric representation theory. We describe a quantization of these slices constructed from certain quantum groups called Yangians. Currently we are studying categories of modules over these quantizations, with the goal of proving that these categories are endowed with certain Lie algebra actions in the sense of Khovanov-Lauda and Rouquier. This talk will be introductory; no prior knowledge of these ideas will be assumed.

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We will take the speaker to lunch after the talk.

See the Algebra Seminar web page for information about other seminars in the series.

John Enyang John.Enyang@sydney.edu.au

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