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Characterizations of semirings by p -injective and projective semimodules

✍ Scribed by Ahsan, Javed; Shabir, M.; Weinert, H.J.

Book ID
126635006
Publisher
Taylor and Francis Group
Year
1998
Tongue
English
Weight
451 KB
Volume
26
Category
Article
ISSN
0092-7872

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In this paper, we study the existence of βŠ₯ -envelopes, -envelopes, βŠ₯ -envelopes, -covers, and -covers where and denote the classes of modules of injective and projective dimension less than or equal to a natural number n, respectively. We prove that over any ring R, special βŠ₯ -preenvelopes and speci