Construction of fibrant cofiber in the category of simplicial sets - MathOverflow most recent 30 from http://mathoverflow.net 2013-05-21T06:04:17Z http://mathoverflow.net/feeds/question/83334 http://www.creativecommons.org/licenses/by-nc/2.5/rdf http://mathoverflow.net/questions/83334/construction-of-fibrant-cofiber-in-the-category-of-simplicial-sets Construction of fibrant cofiber in the category of simplicial sets Gao 2Man 2011-12-13T14:22:31Z 2011-12-13T14:22:31Z <p>A cofibration $i:X\to Y$ of simplicial sets is a monomorphism. Is there a fibrant construction of the cofiber $Ci$, along with the simplicial map $Y\to Ci$? </p>