On Maps from Loop Suspensions to Loop Spaces and the Shuffle Relations on the Cohen Groups

Download or read book On Maps from Loop Suspensions to Loop Spaces and the Shuffle Relations on the Cohen Groups written by Jie Wu and published by American Mathematical Soc.. This book was released on 2006 with total page 78 pages. Available in PDF, EPUB and Kindle. Book excerpt: The maps from loop suspensions to loop spaces are investigated using group representations in this article. The shuffle relations on the Cohen groups are given. By using these relations, a universal ring for functorial self maps of double loop spaces of double suspensions is given. Moreover the obstructions to the classical exponent problem in homotopy theory are displayed in the extension groups of the dual of the important symmetric group modules Lie$(n)$, as well as in the top cohomology of the Artin braid groups with coefficients in the top homology of the Artin pure braid groups.