Covers, precovers, and purity
H Holm, P Jørgensen - Illinois Journal of Mathematics, 2008 - projecteuclid.org
We show that if a class of modules is closed under pure quotients, then it is precovering if
and only if it is covering, and this happens if and only if it is closed under direct sums. This is …
and only if it is covering, and this happens if and only if it is closed under direct sums. This is …
COVERS, PRECOVERS, AND PURITY
H HOLM, P JØRGENSEN - Illinois Journal of Mathematics, 2008 - projecteuclid.org
We show that if a class of modules is closed under pure quotients, then it is precovering if
and only if it is covering, and this happens if and only if it is closed under direct sums. This is …
and only if it is covering, and this happens if and only if it is closed under direct sums. This is …
Covers, precovers, and purity
H Holm, P Jørgensen - Illinois J. Math., 2008 - dml.mathdoc.fr
We show that if a class of modules is closed under pure quotients, then it is precovering if
and only if it is covering, and this happens if and only if it is closed under direct sums. This is …
and only if it is covering, and this happens if and only if it is closed under direct sums. This is …
[PDF][PDF] COVERS, PRECOVERS, AND PURITY
H HOLM, P JØRGENSEN - Illinois Journal of Mathematics, 2008 - math.ku.dk
We show that if a class of modules is closed under pure quotients, then it is precovering if
and only if it is covering, and this happens if and only if it is closed under direct sums. This is …
and only if it is covering, and this happens if and only if it is closed under direct sums. This is …
[引用][C] Covers, precovers, and purity
H Holm, P Jørgensen - Illinois Journal of Mathematics, 2008 - eprints.ncl.ac.uk
Covers, precovers, and purity - ePrints - Newcastle University Newcastle University Toggle
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[PDF][PDF] COVERS, PRECOVERS, AND PURITY
H HOLM, P JØRGENSEN - Illinois Journal of Mathematics, 2008 - researchgate.net
We show that if a class of modules is closed under pure quotients, then it is precovering if
and only if it is covering, and this happens if and only if it is closed under direct sums. This is …
and only if it is covering, and this happens if and only if it is closed under direct sums. This is …
[PDF][PDF] COVERS, PRECOVERS, AND PURITY
H HOLM, P JØRGENSEN - math.ku.dk
We show that if a class of modules is closed under pure quotients, then it is precovering if
and only if it is covering, and this happens if and only if it is closed under direct sums. This is …
and only if it is covering, and this happens if and only if it is closed under direct sums. This is …