# On Natural Coalgebra Decompositions of Tensor Algebras and Loop Suspensions - Memoirs of the American Mathematical Society (Paperback)

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Paperback 109 Pages / Published: 30/10/2000
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Abstract. We consider functorial decompositions of $\Omega\Sigma X$ in the case where $X$ is a $p$-torsion suspension. By means of a geometric realization theorem, we show that the problem can be reduced to the one obtained by applying homology: that of finding natural coalgebra decompositions of tensor algebras. We solve the algebraic problem and give properties of the piece $A^{\mathrm {min}} (V)$ of the decomposition of $T(V)$ which contains $V$ itself, including verification of the Cohen conjecture that in characteristic $p$ the primitives of $A^{\mathrm {min}} (V)$ are concentrated in degrees of the form $p^t$. The results tie in with the representation theory of the symmetric group and in particular produce the maximum projective submodule of the important $S_n$-module $\mathrm {Lie} (n)$.

Publisher: American Mathematical Society
ISBN: 9780821821107
Number of pages: 109
Weight: 227 g
Dimensions: 234 x 156 mm

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