Endomorphisms of free metabelian Lie algebras which preserve orbits.
Chirkov, I.V., Shevelin, M.A. (2004)
Sibirskij Matematicheskij Zhurnal
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Chirkov, I.V., Shevelin, M.A. (2004)
Sibirskij Matematicheskij Zhurnal
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Bračič, Janko, Moslehian, Mohammad Sal (2007)
Bulletin of the Malaysian Mathematical Sciences Society. Second Series
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Denecke, K., Głazek, K, Niwczuk, St. (2004)
Novi Sad Journal of Mathematics
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Otto Kerner, Andrzej Skowroński, Kunio Yamagata, Dan Zacharia (2004)
Open Mathematics
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The strong global dimension of a finite dimensional algebra A is the maximum of the width of indecomposable bounded differential complexes of finite dimensional projective A-modules. We prove that the strong global dimension of a finite dimensional radical square zero algebra A over an algebraically closed field is finite if and only if A is piecewise hereditary. Moreover, we discuss results concerning the finiteness of the strong global dimension of algebras and the related problem...
Alan Dow, P. Nyikos (1992)
Fundamenta Mathematicae
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Partitioner algebras are defined in [2] and are natural tools for studying the properties of maximal almost disjoint families of subsets of ω. In this paper we investigate which free algebras can be represented as partitioner algebras or as subalgebras of partitioner algebras. In so doing we answer a question raised in [2] by showing that the free algebra with generators is represented. It was shown in [2] that it is consistent that the free Boolean algebra of size continuum is not...
L. Torkzadeh, M. M. Zahedi (2006)
Mathware and Soft Computing
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In this note we classify the bounded hyper K-algebras of order 3, which have D = {1}, D = {1,2} and D = {0,1} as a dual commutative hyper K-ideal of type 1. In this regard we show that there are such non-isomorphic bounded hyper K-algebras.
R. Lenczewski (1998)
Banach Center Publications
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From a sequence of m-fold tensor product constructions that give a hierarchy of freeness indexed by natural numbers m we examine in detail the first non-trivial case corresponding to m=2 which we call 2-freeness. We show that in this case the constructed tensor product of states agrees with the conditionally free product for correlations of order ≤ 4. We also show how to associate with 2-freeness a cocommutative *-bialgebra.
Yuzhong Ding, Fuguo Ge, Chenglong Wu (2008)
Formalized Mathematics
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In this article the notion of the power of an element of BCI-algebra and its period in the book [11], sections 1.4 to 1.5 are firstly given. Then the definition of BCI-homomorphism is defined and the fundamental theorem of homomorphism, the first isomorphism theorem and the second isomorphism theorem are proved following the book [9], section 1.6.MML identifier: BCIALG 6, version: 7.9.03 4.108.1028
Mohamed Bekkali, Driss Zhani (2004)
Revista Matemática Complutense
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We characterize free poset algebras F(P) over partially ordered sets and show that they can be represented by upper semi-lattice algebras. Hence, the uniqueness, in decomposition into normal form, using symmetric difference, of non-zero elements of F(P) is established. Moreover, a characterization of upper semi-lattice algebras that are isomorphic to free poset algebras is given in terms of a selected set of generators of B(T).
Timoshenko, E.A. (2004)
Sibirskij Matematicheskij Zhurnal
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J. Monk (1993)
Banach Center Publications
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