Geodesic
Projective purities
Commentationes Mathematicae Universitatis Carolinae, Tome 13 (1972) no. 1, pp. 99-107 Cet article a éte moissonné depuis la source Czech Digital Mathematics Library

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Classification : 16A50, 16A62, 16D40, 16Gxx, 20K35 
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Bican, Ladislav. Projective purities. Commentationes Mathematicae Universitatis Carolinae, Tome 13 (1972) no. 1, pp. 99-107. http://geodesic.mathdoc.fr/item/CMUC_1972_13_1_a7/

[1] A. P. MIŠINA L. A. SKORNJAKOV: Abelevy gruppy i moduli. Moskva, 1969. | MR

[2] L. FUCHS: Abelian groups. Budapest, 1958. | MR | Zbl

[3] S. MACLANE: Gomologija. Moskva, 1966.

[4] L. BICAN: A remark on protectively closed purities. (to appear in Czech. Math. J.). | MR

[5] L. BICAN: Notes on purities. (to appear in Czech. Math. J.). | MR | Zbl

[6] C. P. WALKER: Relative homological algebra and abelian groups. Ill. J. Math. 10 (1966), 186-209. | MR | Zbl