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Brown representability often fails for homotopy categories of complexes
Brown representability Adjoint functor Triangulated cate-gory
2011/2/22
We show that for the homotopy category K(Ab) of com-plexes of abelian groups, both Brown representability and Brown repre-sentability for the dual fail. We also provide an example of a localizing subc...
Constant Scalar Curvature Metrics on Boundary Complexes of Cyclic Polytopes
Regge, Einstein-Hilbert, piecewise
2010/12/7
In [7], a notion of constant scalar curvature metrics on piecewise at manifolds is dened. Such metrics are candidates for canonical metrics on discrete manifolds. In this paper, we dene a class of v...