1. |
Structure of the level two Standard Modules for the affine Lie algebra |
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Communications in Algebra,
Volume 18,
Issue 8,
1990,
Page 2397-2401
Chuanfu Xie,
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摘要:
In this paper, we find bases of level two standard modules for the affine Lie algebrausing the z—algebra theory developed in [2] by Lepowsky and Wilson.
ISSN:0092-7872
DOI:10.1080/00927879008824029
出版商:Marcel Dekker, Inc.
年代:1990
数据来源: Taylor
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2. |
On K-buchsbaum curves in P3 |
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Communications in Algebra,
Volume 18,
Issue 8,
1990,
Page 2403-2422
Juan C. Migliore,
Rosa M. Miró-Roig,
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ISSN:0092-7872
DOI:10.1080/00927879008824030
出版商:Marcel Dekker, Inc.
年代:1990
数据来源: Taylor
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3. |
A minimal example of a non—rational monomial automorphism |
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Communications in Algebra,
Volume 18,
Issue 8,
1990,
Page 2423-2431
Mowaffaq Hajja,
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摘要:
Using the fact that the K—automorphism a defined on k(X1,X2…,X8) byis not rational (if k is the field of rational numbers), we see that the K—automorphism β defined on k(X1,X2,X3,X4) byis not rational. We then show that among non—rational purely monomial K—automorphisms on k(X1,X2,…,Xn), this example β is minimal in the sense that neither 8 (the order of β) nor 4 (the number of variables) can be improved upon.
ISSN:0092-7872
DOI:10.1080/00927879008824031
出版商:Marcel Dekker, Inc.
年代:1990
数据来源: Taylor
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4. |
Uniform rank over schmidt differential operator rings |
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Communications in Algebra,
Volume 18,
Issue 8,
1990,
Page 2433-2459
D.R. Malm,
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摘要:
This paper is concerned with the question of when a Schmidt differential operator ring S over a ring R must have the same uniform rank or reduced rank as R. Also, some information about those prime ideals of R which are invariant under a Schmidt higher derivation is derived. All rings in this paper are associative with unit and all modules are unital right modules.
ISSN:0092-7872
DOI:10.1080/00927879008824032
出版商:Marcel Dekker, Inc.
年代:1990
数据来源: Taylor
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5. |
The euclidean bianchi group |
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Communications in Algebra,
Volume 18,
Issue 8,
1990,
Page 2461-2484
Benjamin Fine,
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摘要:
The Bianchi Groups Γdare PSL2(0d) where 0dis the ring of integers in the quadratic imaginary number field Q√-d with d a positive square-free rational integer. If d=1,2,3,7,11 0dhas a Euclidean algorithm and the corresponding groups are called the Euclidean Bianchi Groups. The group Γ1is the Picard Group has been studied independently. Here the subgroup structure of the remaining Euclidean Bianchi Groups is investigated. We show that they have a unique normal subgroup of index in if(n,6)=1 among other results. We also classify the abelian and nilpotent subgroups and discuss the structure of both congruence and non-congruence subgroups.
ISSN:0092-7872
DOI:10.1080/00927879008824033
出版商:Marcel Dekker, Inc.
年代:1990
数据来源: Taylor
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6. |
On invariants with multiplicity |
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Communications in Algebra,
Volume 18,
Issue 8,
1990,
Page 2485-2495
Hans Åberg,
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ISSN:0092-7872
DOI:10.1080/00927879008824034
出版商:Marcel Dekker, Inc.
年代:1990
数据来源: Taylor
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7. |
Left exact torsion theories |
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Communications in Algebra,
Volume 18,
Issue 8,
1990,
Page 2497-2518
Tamotsu Ikeyama,
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ISSN:0092-7872
DOI:10.1080/00927879008824035
出版商:Marcel Dekker, Inc.
年代:1990
数据来源: Taylor
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8. |
Localization in Abelian Categories |
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Communications in Algebra,
Volume 18,
Issue 8,
1990,
Page 2519-2540
Toyonori Kato,
Tamotsu Ikeyama,
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ISSN:0092-7872
DOI:10.1080/00927879008824036
出版商:Marcel Dekker, Inc.
年代:1990
数据来源: Taylor
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9. |
Uniform modules over serial rings with krull dimension |
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Communications in Algebra,
Volume 18,
Issue 8,
1990,
Page 2541-2557
Mary H. Wright,
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ISSN:0092-7872
DOI:10.1080/00927879008824037
出版商:Marcel Dekker, Inc.
年代:1990
数据来源: Taylor
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10. |
Prime serial rings with krull dimension |
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Communications in Algebra,
Volume 18,
Issue 8,
1990,
Page 2559-2572
Mary H. Wright,
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ISSN:0092-7872
DOI:10.1080/00927879008824038
出版商:Marcel Dekker, Inc.
年代:1990
数据来源: Taylor
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