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We define a new class of pseudo effect algebras, called kite pseudo effect algebras, which is connected with partially ordered groups not necessarily with strong unit. In such a case, starting even with an Abelian po-group, we can obtain a…

Mathematical Physics · Physics 2015-06-16 Anatolij Dvurečenskij

We define a new class of pseudo effect algebras, called kite pseudo effect algebras, which is connected not necessarily with partially ordered groups, but rather with generalized pseudo effect algebras where the greatest element is not…

Rings and Algebras · Mathematics 2014-03-11 Anatolij Dvurečenskij

Recently a new family of pseudo effect algebras, called kite pseudo effect algebras, was introduced. Such an algebra starts with a po-group $G$, a set $I$ and with two bijections $\lambda,\rho:I \to I.$ Using a clever construction on the…

Rings and Algebras · Mathematics 2015-06-17 Anatolij Dvurečenskij , W. Charles Holland

We study the Riesz Decomposition Property types of the lexicographic product of two po-groups. Then we apply them to the study of pseudo effect algebras which can be decomposed to a comparable system of non-void slices indexed by some…

Mathematical Physics · Physics 2013-03-05 A. Dvurecenskij , M. Kolarik

We will study the existence of different types of the Riesz Decomposition Property for the lexicographic product of two partially ordered groups. A special attention will be paid to the lexicographic product of the group of the integers…

Mathematical Physics · Physics 2015-06-12 A. Dvurečenskij , J. Krňávek

We investigate a construction of a pseudo BL-algebra out of an $\ell$-group called a kite. We show that many well-known examples of algebras related to fuzzy logics can be obtained in that way. We describe subdirectly irreducible kites. As…

Rings and Algebras · Mathematics 2012-07-10 Anatolij Dvurecenskij , Tomasz Kowalski

We discuss the relationships between effect algebras with the Riesz Decomposition Property and partially ordered groups with interpolation. We show that any $\sigma$-orthocomplete atomic effect algebra with the Riesz Decomposition Property…

Commutative Algebra · Mathematics 2015-06-04 Anatolij Dvurecenskij , Yongjian Xie

We present a new construction of a class pseudo BL-algebras, called kite pseudo BL-algebras. We start with a basic pseudo hoop $A$. Using two injective mappings from one set, $J$, into the second one, $I$, and with an identical copy…

Commutative Algebra · Mathematics 2014-03-07 Anatolij Dvurečenskij

We investigate the structure of perfect residuated lattices, focussing especially on perfect pseudo MV-algebras. We show that perfect pseudo MV-algebras can be represented as a generalised version of kites of Dvure\v{c}enskij and Kowalski,…

Logic · Mathematics 2025-09-16 Michal Botur , Tomasz Kowalski

We give sufficient and necessary conditions to guarantee that a pseudo-effect algebra admits an $(n+1)$-valued discrete state. We introduce $n$-perfect pseudo-effect algebras as algebras which can be split into $n+1$ comparable slices. We…

Rings and Algebras · Mathematics 2012-03-06 Anatolij Dvurecenskij , Yongjian Xie , Aili Yang

The theory of direct decomposition of a centrally orthocomplete effect algebra into direct summands of various types utilizes the notion of a type-determining (TD) set. A pseudo-effect algebra (PEA) is a (possibly) noncommutative version of…

Rings and Algebras · Mathematics 2015-05-19 David Foulis , Sylvia Pulmannová , Elena Vincekova

We study conditions when a certain type of the Riesz Decomposition Property (RDP for short) holds in the lexicographic product of two po-groups. Defining two important properties of po-groups, we extend known situations showing that the…

Rings and Algebras · Mathematics 2016-05-02 Anatolij Dvurečenskij , Omid Zahiri

Pseudo-effect algebras are partial algebraic structures, that were introduced as a non-commutative generalization of effect algebras. In the present paper, lattice ordered pseudo-effect algebras are considered as possible algebraic…

Rings and Algebras · Mathematics 2010-07-05 David J. Foulis , Sylvia Pulmannova , Elena Vincekova

Cohen and Taylor introduced Plesken Lie algebras of finite groups and studied their structural properties. As a further step, we will introduce Plesken Lie algebra representations, Plesken Lie algebra modules and discuss the irreducibility…

Representation Theory · Mathematics 2022-06-15 P. G. Romeo , S. N. Arjun

A class of representations of a Lie superalgebra (over a commutative superring) in its symmetric algebra is studied. As an application we get a direct and natural proof of a strong form of the Poincare'-Birkhoff-Witt theorem, extending this…

Representation Theory · Mathematics 2007-05-23 Emanuela Petracci

We establish conditions when a certain type of the Riesz Decomposition Property (RDP) holds in the lexicographic product of two po-groups. It is well known that the resulting product is an $\ell$-group if and only if the first one is…

Rings and Algebras · Mathematics 2015-06-30 Anatolij Dvurečenskij

Cohen and Taylor introduced Plesken Lie algebra as certain Lie algebra constructed using finite groups. Arjun and Romeo described the linear representation of these Lie algebras induced from group representation in [1]. Hence the authors…

Representation Theory · Mathematics 2023-12-19 S. N. Arjun , P. G. Romeo

The concept of a Kleene algebra (sometimes also called Kleene lattice) was already generalized by the first author for non-distributive lattices under the name pseudo-Kleene algebra. We extend these concepts to posets and show how…

Rings and Algebras · Mathematics 2020-06-09 Ivan Chajda , Helmut Länger

Recently in \cite{Dvu3} it was shown that if a pseudo effect algebra satisfies a kind of the Riesz Decomposition Property ((RDP) for short), then its state space is either empty or a nonempty simplex. This will allow us to prove a…

Functional Analysis · Mathematics 2010-09-07 Anatolij Dvurecenskij

We define Lie subalgebras of the group algebra of a finite pseudo-reflection group that are involved in the definition of the Cherednik KZ-systems, and determine their structure. We provide applications for computing the Zariski closure of…

Representation Theory · Mathematics 2010-12-21 Ivan Marin
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