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Int. J. Algebra Comput.最新文献

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Super-biderivations on the planar Galilean conformal superalgebra 平面伽利略共形超代数的超推导
Pub Date : 2023-06-30 DOI: 10.1142/s0218196723500376
Ziyan Zuo, Jiancai Sun
Let [Formula: see text] be the planar Galilean conformal superalgebra. In this paper, we determine all the super-skewsymmetric super-biderivations of [Formula: see text]. We find that every super-skewsymmetric super-biderivation of the planar Galilean conformal superalgebra is inner.
设[公式:见文]为平面伽利略共形超代数。在本文中,我们确定了[公式:见文]的所有超偏对称超推导。我们发现平面伽利略共形超代数的每一个超偏对称超推导都是内的。
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引用次数: 0
Semigroups locally embeddable into the class of finite semigroups 半群局部可嵌入有限半群类
Pub Date : 2023-06-16 DOI: 10.1142/s021819672350042x
D. Kudryavtsev
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引用次数: 1
Construction of symmetric cubic surfaces 对称立方曲面的构造
Pub Date : 2023-06-16 DOI: 10.1142/s0218196723500443
M. Brundu, A. Logar, Federico Polli
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引用次数: 0
On the induced partial action of a quotient group and a structure theorem for a partial Galois extension 商群的诱导偏作用及部分伽罗瓦扩展的一个结构定理
Pub Date : 2023-06-16 DOI: 10.1142/s0218196723500431
Jung-Miao Kuo, G. Szeto
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引用次数: 1
On lax epimorphisms of partially ordered monoids 部分序单群的松弛上胚
Pub Date : 2023-06-02 DOI: 10.1142/s0218196723500418
N. Sohail, A. Shah, S. A. Ahangar
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引用次数: 0
Properties of symbolic powers of edge ideals of weighted oriented graphs 加权有向图边理想符号幂的性质
Pub Date : 2023-06-02 DOI: 10.1142/s0218196723500406
Mousumi Mandal, Dipak Kumar Pradhan
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引用次数: 0
The isomorphism problem of projective schemes and related algorithmic problems 投影格式的同构问题及相关算法问题
Pub Date : 2023-05-26 DOI: 10.1142/s021819672350039x
Takehiko Yasuda
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引用次数: 1
Classifying word problems of finitely generated algebras via computable reducibility 利用可计算约化性对有限生成代数的词问题进行分类
Pub Date : 2023-05-12 DOI: 10.1142/s0218196723500339
Valentino Delle Rose, L. Mauro, A. Sorbi
We contribute to a recent research program which aims at revisiting the study of the complexity of word problems, a major area of research in combinatorial algebra, through the lens of the theory of computably enumerable equivalence relations (ceers), which has considerably grown in recent times. To pursue our analysis, we rely on the most popular way of assessing the complexity of ceers, that is via computable reducibility on equivalence relations, and its corresponding degree structure (the c-degrees). On the negative side, building on previous work of Kasymov and Khoussainov, we individuate a collection of c-degrees of ceers which cannot be realized by the word problem of any finitely generated algebra of finite type. On the positive side, we show that word problems of finitely generated semigroups realize a collection of c-degrees which embeds rich structures and is large in several reasonable ways.
我们为最近的一个研究项目做出了贡献,该项目旨在通过可计算可数等价关系(ceers)理论的视角,重新审视词问题的复杂性研究,这是组合代数的一个主要研究领域,该理论在最近得到了相当大的发展。为了继续我们的分析,我们依赖于最流行的评估ceers复杂性的方法,即通过等价关系的可计算约约性及其相应的度结构(c度)。在消极方面,在Kasymov和Khoussainov之前的工作的基础上,我们对c度的集合进行了个体化,这些集合不能通过任何有限生成的有限类型代数的字问题来实现。在积极的方面,我们证明了有限生成半群的词问题实现了c度的集合,该集合以几种合理的方式嵌入了丰富的结构并且很大。
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引用次数: 0
Pure projective, pure injective and FP-injective modules over trivial ring extensions 平凡环扩展上的纯射影、纯内射和fp -内射模
Pub Date : 2023-04-28 DOI: 10.1142/s0218196723500315
L. Mao
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引用次数: 0
Formal matrix rings: Automorphisms 形式矩阵环:自同构
Pub Date : 2023-04-28 DOI: 10.1142/s0218196723500303
P. Krylov, A. Tuganbaev
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引用次数: 0
期刊
Int. J. Algebra Comput.
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