Results 131 to 140 of about 90,057 (293)
Quasi-uniform structures and functors [PDF]
, 2023 Minani Iragi, David Holgate
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International Journal of Mathematics and Mathematical Sciences, 2002 We develop some basic functorial techniques for the study of the categories of comodules over corings. In particular, we prove that the induction functor stemming from every morphism of corings has a left adjoint, called ad-induction functor.
J. Gómez-Torrecillas
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Kernel functors for which the associated idempotent kernel functor is stable [PDF]
, 1975 Jitendra N. Manocha
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Duke Mathematical Journal, 1996 Given a pointed space \(A\) and a map \(f:X\to Y\) consider its factorization \(X\to Y'@>p>>Y\), where \((Y',X)\) is a relative \(A\)-CW-complex and \(p\) a map inducing a weak equivalence \(p_*:\text{TOP}(A,Y')\to \text{TOP}(A,Y)\) of mapping spaces.
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On the equvialence of colimits and 2-colimits
, 2019 We compare the colimit and 2-colimit of strict 2-functors in the 2-category of groupoids, over a certain type of posets. These posets are of special importance, as they correspond to coverings of a topological space.
Pirashvili, Ilia
core
Steenrod-Cech homology-cohomology theories associated with bivariant\n functors [PDF]
, 2011 Kohei Yoshida
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On the Singer functor R_1 and the functor Fix
, 2009 Lannes' T-functor is used to give a construction of the Singer functor R_1 on the category U of unstable modules over the Steenrod algebra A. This leads to a direct proof that the composite functor Fix R_1 is naturally equivalent to the identity. Further properties of the functors R_1 are deduced, especially when applied to reduced and nilclosed ...
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Derived functors of $\varprojlim$ and abelian ab3*- and Ab4*-categories with enough injectives [PDF]
, 1981 Piotr Ossowski
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