### Jaiung Jun (전재웅), On the Hopf algebra of multi-complexes

Zoom ID: 934 3222 0374 (ibsdimag)In combinatorics, Hopf algebras appear naturally when studying various classes of combinatorial objects, such as graphs, matroids, posets or symmetric functions. Given such a class of combinatorial objects, basic information on these objects regarding assembly and disassembly operations are encoded in the algebraic structure of a Hopf algebra. One then hopes to use algebraic identities of …