Abstract:
Frenkel and Reshetikhin introduced the q-characters to study finite dimensional representations of quantized universal enveloping algebras, which can be regarded as the quantization of the usual characters. Nekrasov gave a gauge theoretic interpretation to further quantize the q-characters in terms of operator insertions, and called them qq-characters. In this talk, I will first present a string theory construction for the qq-characters for any simple Lie group. Following this, I will focus on a new approach to study the qq-character for any symmetric representations of A-type groups using the refined topological vertex.
- Organizer: Centre for Quantum Mathematics
- Address: Campusvej 55, 5230 Odense M
- Contact Email: jaja@sdu.dk
- Location: QM meeting room (Ø10-401-1): https://clients.mapsindoors.com/sdu/573f26e4bc1f571b08094312/details/563cb8b7423b7d0540c9a124
- Add to your calendar: https://eom.sdu.dk:443/events/ical/d5936fbc-f3f2-4e6f-b20a-892456541349