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math.DG2010
Equivariant cohomology and current algebras
Anton Alekseev, Pavol Severa
Let M be a manifold and g a Lie algebra acting on M. Differential forms Omega(M) carry a natural action of Lie derivatives L(x) and contractions I(x) of fundamental vector fields f…
math.QA2010
On rational Drinfeld associators
Anton Alekseev, Masha Podkopaeva, Pavol Severa
We prove an estimate on denominators of rational Drinfeld associators. To obtain this result, we prove the corresponding estimate for the p-adic associators stable under the action…