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1. |
Growth series of central amalgamations |
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Communications in Algebra,
Volume 21,
Issue 2,
1993,
Page 371-397
Nicholas Billington,
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摘要:
Evaluation at 1 of the growth series of a finitely generated group G of rational growth often yields the reciprocal of the ordinary Euler characteristic of G.
ISSN:0092-7872
DOI:10.1080/00927879308824568
出版商:Marcel Dekker, Inc.
年代:1993
数据来源: Taylor
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2. |
Non-alternating hamiltonian algebraP(n,m)of characteristic two |
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Communications in Algebra,
Volume 21,
Issue 2,
1993,
Page 399-411
Lei Lin,
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摘要:
Over a fieldFof characteristic p = 2, a class of Lie algebrasP(n,m), called non-alternating Hamiltonian algebras, is constructed, wherenis a Positive integer and m=(m1, ⋯,mn) is ann-tuple of positive integers.P(n,m)is a graded and filtered subalgebra of the generalized Jacobson-Witt algebraW(n,m)and bears resemblance to the Lie algebras of Cartan type.P(n,m)is shown to be simple unless m=1 andn< 4. The dimension ofP(n,m)isDifferent from the Lie algebras of Cartan type, allP(n,m)are nonrestrictable. The derivation algebra ofP(n,m)is determined, and the natural filtration ofP(n,m)is proved to be invariant. It is then determined thatP(n,m)is a new class of simple Lie algebras if (n,m) satisfies some condition.
ISSN:0092-7872
DOI:10.1080/00927879308824569
出版商:Marcel Dekker, Inc.
年代:1993
数据来源: Taylor
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3. |
Curves whose hyperplane section is a given scheme |
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Communications in Algebra,
Volume 21,
Issue 2,
1993,
Page 413-419
E. Ballico,
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ISSN:0092-7872
DOI:10.1080/00927879308824570
出版商:Marcel Dekker, Inc.
年代:1993
数据来源: Taylor
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4. |
On generators of ideals in one-dimensional local rings |
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Communications in Algebra,
Volume 21,
Issue 2,
1993,
Page 421-425
Christian Gottlieb,
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ISSN:0092-7872
DOI:10.1080/00927879308824571
出版商:Marcel Dekker, Inc.
年代:1993
数据来源: Taylor
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5. |
Coideal subalgebras in hopf algebras: freeness, integrals, smash products |
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Communications in Algebra,
Volume 21,
Issue 2,
1993,
Page 427-444
M. Koppinen,
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摘要:
A. Masuoka and Y. Doi have given several necessary and sufficient conditions for a finite-dimensional Hopf algebraAto be free as a left and a right module over a right coideal subalgebraB.
ISSN:0092-7872
DOI:10.1080/00927879308824572
出版商:Marcel Dekker, Inc.
年代:1993
数据来源: Taylor
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6. |
Irreducible maps of commutative rings |
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Communications in Algebra,
Volume 21,
Issue 2,
1993,
Page 445-481
Jeremy Haefner,
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摘要:
We give necessary conditions for a map to be irreducible (in the category of finitely generated, torsion free modules) over a non-local, commutative ring and sufficient conditions when the ring is Bass. In particular, we show that an irreducible map of ZG, where G is a square free abelian group, must be a monomorphism with a simple cokernel. We also show that local endomorphism rings are necessary and sufficient for the existence of almost split sequences over a commutative Bass ring and we explicitly describe the modules and the maps in those sequences. The results in this paper enable us to describe the Auslander-Reiten quiver of a non-local Bass ring in [8].
ISSN:0092-7872
DOI:10.1080/00927879308824573
出版商:Marcel Dekker, Inc.
年代:1993
数据来源: Taylor
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7. |
Irreducible maps of commutative rings |
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Communications in Algebra,
Volume 21,
Issue 2,
1993,
Page 483-509
Jeremy Haefner,
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摘要:
In this paper, we analyze the Auslander-Reiten quiver for the category fo lattices over a commutative, non-local, Bass ring. Our applications include explicitly describing the quiver, proving path connectedness and Eulerian features of the quiver, associating the quiver to a Cayley diagram, proving a finite type result with the quiver and generalizing the concept of unique factorization domainto the notion of unique map factorization domain.
ISSN:0092-7872
DOI:10.1080/00927879308824574
出版商:Marcel Dekker, Inc.
年代:1993
数据来源: Taylor
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8. |
Polynome mit GaloisgruppenPGL2(p) undPSL2(p) über |
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Communications in Algebra,
Volume 21,
Issue 2,
1993,
Page 511-526
Gunter Malle,
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ISSN:0092-7872
DOI:10.1080/00927879308824575
出版商:Marcel Dekker, Inc.
年代:1993
数据来源: Taylor
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9. |
Sur les groupes multiplicatifs des corps |
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Communications in Algebra,
Volume 21,
Issue 2,
1993,
Page 527-534
Paul Van Praag,
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摘要:
SoientDun corps non nécessairement commutatif etLun sous-corps deD. On établit une condition nécessaire et suffisante pour que le groupe multiplicatifLdeLsoit d'indice fini dans son normalisateurNdansD. Lorsque la dimension à gauche [D:L]gest un nombre premier, on précise le groupeN/Let la structure deD.
ISSN:0092-7872
DOI:10.1080/00927879308824576
出版商:Marcel Dekker, Inc.
年代:1993
数据来源: Taylor
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10. |
On finite groups admitting certain sharp characters with irrational values |
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Communications in Algebra,
Volume 21,
Issue 2,
1993,
Page 535-554
Dean Alvis,
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ISSN:0092-7872
DOI:10.1080/00927879308824577
出版商:Marcel Dekker, Inc.
年代:1993
数据来源: Taylor
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