Week of February 15, 2026

February 16, 2026
Geometry, Symmetry and Physics TBA Siddarth Kannan - MIT 4:30pm -
KT 801
February 17, 2026
Geometric Analysis Learning Seminar Geometric Analysis Learning Seminar 10:30am -
KT 801
Geometry & Topology TBA Alex Maldague - Rice University 4:30pm -
KT 207
February 19, 2026
Quantum Topology and Field Theory Skeins, q-series, and modularity Sunghyuk Park - CMSA Harvard 4:30pm -
KT 801
February 20, 2026
Learning seminar on Matroids and Algebraic Cycles Learning seminar on Matroids and Algebraic Cycles 2:15pm -
KT 801
Learning seminar on Groups, Geometry and Dynamics Learning seminar on Groups Geometry and Dynamics 4:00pm -
KT 801

Abstracts

Week of February 15, 2026

February 16, 2026
Geometry, Symmetry and Physics TBA 4:30pm -
KT 801

TBA
February 17, 2026
Geometric Analysis Learning Seminar Geometric Analysis Learning Seminar 10:30am -
KT 801

TBA
Geometry & Topology TBA 4:30pm -
KT 207

TBA
February 19, 2026
Quantum Topology and Field Theory Skeins, q-series, and modularity 4:30pm -
KT 801

Abstract:  I will describe a construction of a q-series invariant (BPS q-series, also known as the Z-hat invariant) associated to a 3-manifold decorated by an embedded link. These q-series depend only on the class of the link in the skein module, and hence define a homomorphism from the skein module to the space of q-series. The image of this homomorphism is conjectured to exhibit holomorphic quantum modularity, which suggests a new approach to Langlands duality for skein modules via q-series.
February 20, 2026
Learning seminar on Matroids and Algebraic Cycles Learning seminar on Matroids and Algebraic Cycles 2:15pm -
KT 801

TBA
Learning seminar on Groups, Geometry and Dynamics Learning seminar on Groups Geometry and Dynamics 4:00pm -
KT 801

TBA