ArticleOriginal scientific text

Title

The cohomology algebra of certain free loop spaces

Authors 1, 2, 1, 2

Affiliations

  1. Graduate School of Science and Technology, Okayama University, Okayama 700, Japan
  2. Department of Applied Mathematics, Okayama University of Science, 1-1 Ridai-cho, Okayama 700, Japan

Abstract

Let X be a simply connected space and LX the space of free loops on X. We determine the mod p cohomology algebra of LX when the mod p cohomology of X is generated by one element or is an exterior algebra on two generators. We also provide lower bounds on the dimensions of the Hodge decomposition factors of the rational cohomology of LX when the rational cohomology of X is a graded complete intersection algebra. The key to both of these results is the identification of an important subalgebra of the Hochschild homology of a graded complete intersection algebra over a field.

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Pages:
57-73
Main language of publication
English
Received
1996-05-23
Accepted
1997-01-21
Published
1997
Exact and natural sciences