Speaker报告人潘杰(香港科技大学)Time时间Mon., 9:30-10:30 am, Sept. 8, 2025Venue地点B627, Shuangqing Complex Building AAbstract摘要Generalizing the construction of greedy basis introduced by Lee, Li Li and Zelevinsky, we associate a polytope function to each vector in $\Z^n$. It turns out that these polytope functions include Laurent expression of all cluster monomials and satisfy many good pro...
AbstractI will review four-dimensional gravity in the coframe-and-connection formulation (a.k.a. Palatini–Cartan formalism) and what it entails on boundaries (e.g., on Cauchy surfaces) and on corners (e.g., surfaces at infinity or surfaces around singularities in space). This full analysis will require the BV, the BFV and related formalisms and their interplay.About the speakerAlberto Cattaneo...