From: gaucher@irma.u-strasbg.fr (Philippe Gaucher)
To: categories@mta.ca
Subject: projective diagrams
Date: Wed, 17 Jun 1998 13:52:05 +0200 [thread overview]
Message-ID: <199806171152.NAA15983@irma.mathstras> (raw)
Dear categoricist,
Let I be the following small category :
a a a
--------> --------> -------->
.. n n-1 n-2 ...... 0
--------> --------> -------->
b b b
with the relations a o a = a o b and b o a = b o b.
Consider the category C of functors from I to the category of
K-modules. How could we characterize the projective objects of C ?
Any idea, any reference, is welcome.
pg.
reply other threads:[~1998-06-17 11:52 UTC|newest]
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