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On the Multiplicative Structure of Topological Hochschild Homology

M. Brun, Z. Fiedorowicz, R. M. Vogt

math.ATarXiv:math/0410367

Abstract

We show that the topological Hochschild homology THH(R of an En-ring spectrum R is an En-1-ring spectrum. The proof is based on the fact that the tensor product of the operad Ass for monoid structures and the the little n-cubes operad is an En+1-operad, a result which is of independent interest.

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