Dear all,
The next CART seminar is scheduled for Apr 17th (Fri), 10:30 - 11:30 in Korea time (9:30 - 10:30 in Beijing).
Speaker: Aritra Bhattacharya (Beijing International Center for Mathematical Research) Title: On factorization of matrix of Kazhdan-Lusztig polynomials Abstract: The famous Kazhdan-Lusztig positivity states that the transition matrix between the canonical basis and the standard basis of the Hecke algebra (of a Weyl group) is a matrix with polynomial entries with non-negative integer coefficients. In this talk we will describe a factorization of this positivity via certain intermediate bases called the hybrid bases. We will also present a reformulation of the statements in terms of a natural restriction map on Hecke algebras. This framework also subsumes the positivity of parabolic Kazhdan-Lusztig polynomials corresponding to the sign representations. This is joint work with Ashish Mishra and Shraddha Srivastava.
You can join the seminar via the following
Zoom link: https://kias-re-kr.zoom.us/j/89659176224?pwd=TLxuQ7yKEqgGCnnBb6NxDE8z20J6lM.... Meeting ID: 896 5917 6224 Password: 947850
Please feel free to forward this to anyone who might be interested. You can check out further information on CART seminar on our website (https://sites.google.com/view/cart-kias/).
Looking forward to seeing you at the seminar!
Best regards,
Sin-Myung Lee