On the F\'elix and Tanr\'e rational model for a polyhedral product and its application to partial quotients

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Katsuhiko Kuribayashi, Shinshu University

 The F\'elix--Tanr\'e rational model for the polyhedral product of a fibre inclusion is considered. In particular, we investigate a tractable rational model for the polyhedral product of a pair of Lie groups corresponding to arbitrary simplicial complex and the rational homotopy group of the polyhedral product.  Furthermore, it is proved that for a partial quotient N associated with a toric manifold M,the following conditions are equivalent: (i) N=M. (ii) The odd-degree rational cohomology of N is trivial.(iii) The torus bundle map from N to the Davis--Januszkiewicz space is formalizable.This work is based on the paper On F\'elix and Tanr\'e rational models for polyhedral products, Fundam. Math. 267 (2024), 243--265.