Results 161 to 170 of about 3,139 (196)
Weak projectives of finite semigroups [PDF]
Journal of Algebra, 2003 It is described weak projectives in the category of finite semigroups.
Zelenyuk, Yevhen
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On gorenstein injective and projective comodules
Mathematical Notes, 2013zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Pan, Q. X., Li, Q.
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INJECTIVITY, PROJECTIVITY AND SUPERCUSPIDAL REPRESENTATIONS
Journal of the London Mathematical Society, 2004zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Adler, Jeffrey D., Roche, Alan
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Injective and projective graphs
Publicationes Mathematicae Debrecen, 2022Summary: The category of graphs (where the graphs may have loops), G, has as objects all finite graphs and as morphisms all graphs homomorphisms. In this paper we begin a study of G by establishing that G has enough injective objects, and then demonstrate the existence of an injective hull of a graph.
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Restricted Projective, Injective and Flat Complexes
Bulletin of the Iranian Mathematical Society, 2020zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Li Liang, Yanhui Song
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On the Injective and Projective Limit of Complexes
Canadian Mathematical Bulletin, 1965Let R be a commutative ring with unit. Let (Aα, φ βα) (α ≤ β) (resp. (Bα, ψαβ) (α ≤ β)) be an infective (resp. projective) system of R-algebras indexed by a directed set I; let ((Xα, dα), fβα) (α ≤ β) (resp. ((Yα, δα), gαβ) (α≤β)) be an injective (resp. projective) system of complexes, indexed by the same set I, such that for each αϵI, (Xα, dα) (resp. (
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Projective and injective topologies
1997Abstract In this chapter we shall generate new locally convex spaces from given ones. For this we shall familiarize ourselves with new concepts and the first applications of the duality theory. In particular, we generalize the closed graph and open mapping theorems of chapter 8.
Reinhold Meise, Dietmar Vogt
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DG-Projective, Injective and Flat Complexes
Algebra Colloquium, 2013In this article, we characterize some rings in terms of the DG-projective, injective and flat complexes. We also give some connections between DG-injective complexes and DG-flat complexes and prove that under some additional conditions, every complex of left R-modules has a DG-flat preenvelope.
Yang, Xiaoyan, Liu, Zhongkui
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