Algebraic cohomology of topological groups

D Wigner - Transactions of the American Mathematical Society, 1973 - ams.org
ALGEBRAIC COHOMOLOGY OF TOPOLOGICAL GROUPS Page 1 TRANSACTIONS OF THE
AMERICAN MATHEMATICAL SOCIETY Volume 178, April 1973 ALGEBRAIC COHOMOLOGY …

1+ 1d SPT phases with fusion category symmetry: interface modes and non-abelian Thouless pump

K Inamura, S Ohyama - arXiv preprint arXiv:2408.15960, 2024 - arxiv.org
We consider symmetry protected topological (SPT) phases with finite non-invertible
symmetry $\mathcal {C} $ in 1+ 1d. In particular, we investigate interfaces and …

The cohomology of semi-simple Lie groups, viewed from infinity

N Monod - Transactions of the American Mathematical Society …, 2022 - ams.org
We prove that the real cohomology of semi-simple Lie groups admits boundary values,
which are measurable cocycles on the Furstenberg boundary. This generalises known …