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Showing papers in "Communications in Algebra in 1977"


Journal ArticleDOI
TL;DR: The representation theory of artin algebras has been studied in this paper, where invariants given by almost split sequences have been studied as a special case of almost-split sequences.
Abstract: (1977). Representation theory of artin algebras IV1)Invariants given by almost split sequences. Communications in Algebra: Vol. 5, No. 5, pp. 443-518.

213 citations


Journal ArticleDOI
TL;DR: In this paper, the characters of typical representations of classical lie superalgebras are described and compared to a set of characters of characters from the classical Lie Superalgebra.
Abstract: (1977). Characters of typical representations of classical lie superalgebras. Communications in Algebra: Vol. 5, No. 8, pp. 889-897.

207 citations


Journal ArticleDOI
TL;DR: In this paper, the classification of simple z-graded lie superalgebras and simple Jordan superalgaes is presented, where simple lie supergaes are considered.
Abstract: (1977). Classification of simple z-graded lie superalgebras and simple jordan superalgebras. Communications in Algebra: Vol. 5, No. 13, pp. 1375-1400.

197 citations


Journal ArticleDOI
TL;DR: In this article, the fields of definition of function fields and hurwitz families are defined and groups as galois groups are defined. But they are not defined in terms of functions.
Abstract: (1977). Fields of definition of function fields and hurwitz families — groups as galois groups. Communications in Algebra: Vol. 5, No. 1, pp. 17-82.

112 citations


Journal ArticleDOI
TL;DR: In this article, the representation theory of artin algebras v: methods for computing aimost split sequences and irreducible morphisms is discussed. But this method is not suitable for algebraic models.
Abstract: (1977). Representation theory of artin algebras v: methods for computing aimost split sequences and irreducible morphisms. Communications in Algebra: Vol. 5, No. 5, pp. 519-554.

103 citations



Journal ArticleDOI
TL;DR: In this paper, the role of the arithmetic of a ring in the finiteness of its flat ideals is discussed, and the relationships that hold between finitness and divisibility properties of flat ideals of integral domains are investigated.
Abstract: This paper is concerned with the relationships that hold between finiteness and divisibility properties of flat ideals of integral domains Brought out often is the role of the arithmetic of a ring in the finiteness of its flat ideals

94 citations


Journal ArticleDOI
TL;DR: In this article, principal blocks of groups with dihedral sylow 2-subgroups were studied and discussed in terms of principal blocks for algebraic groups with two-dimensional sylow subgroups.
Abstract: (1977). Principal blocks of groups with dihedral sylow 2-subgroups. Communications in Algebra: Vol. 5, No. 7, pp. 665-694.

70 citations


Journal ArticleDOI

49 citations


Journal ArticleDOI
TL;DR: In this paper, a skew polynomial ring over a jacobson ring was shown to not be a JACOBSON ring, but rather a skew polylogarithmic ring.
Abstract: (1977). A skew polynomial ring over a jacobson ring need not be a jacobson ring. Communications in Algebra: Vol. 5, No. 8, pp. 783-794.

49 citations





Journal ArticleDOI
TL;DR: In this article, the authors discuss the Uber einfache endliche gruppen with sylow-2-gruppen der ordnung hochstens 210.
Abstract: (1977). Uber einfache endliche gruppen mit sylow-2-gruppen der ordnung hochstens 210. Communications in Algebra: Vol. 5, No. 2, pp. 113-170.



Journal ArticleDOI
TL;DR: Weakly symmetric rings of distributive module type as mentioned in this paper have been studied in the literature for a long time and have been used extensively in algebraic applications, e.g.
Abstract: (1977). Weakly symmetric rings of distributive module type. Communications in Algebra: Vol. 5, No. 9, pp. 997-1008.


Journal ArticleDOI
TL;DR: In this article, the authors consider the problem of green polynomials op finite classical groups and show that the polynomial decomposition of a finite classical group can be expressed as
Abstract: (1977). Green polynomials op finite classical groups. Communications in Algebra: Vol. 5, No. 12, pp. 1241-1258.





Journal ArticleDOI
TL;DR: Burnside rings which are gorenstein are discussed in this paper, where the authors show that they can be obtained from the Gorenstein ring and the Burnside ring, respectively, and
Abstract: (1977). Burnside rings which are gorenstein. Communications in Algebra: Vol. 5, No. 1, pp. 1-15.