Results 31 to 40 of about 46,949 (225)

Cyclic projectors and separation theorems in idempotent convex geometry

open access: yes, 2007
Semimodules over idempotent semirings like the max-plus or tropical semiring have much in common with convex cones. This analogy is particularly apparent in the case of subsemimodules of the n-fold cartesian product of the max-plus semiring it is known ...
F. L. Baccelli   +20 more
core   +2 more sources

Higher Lie Idempotents

open access: yesJournal of Algebra, 1999
The Milnor-Moore theorem says that in characteristic zero, any connected graded cocommutative bialgebra \(A\) is canonically isomorphic to the enveloping bialgebra of the Lie algebra of its primitive elements \(\text{Prim}(A)\). There is a weaker form known as the Leray theorem, whose dual statement is that any retract of the vector space inclusion of \
Patras, Frédéric   +1 more
openaire   +2 more sources

Equilibria for games in idempotent measures

open access: yesESAIM: Proceedings and Surveys, 2017
This paper is devoted to non-cooperative games in idempotent measures. We consider two kinds of such games. Firstly, players are allowed to play their mixed idempotent strategies.
Radul Taras
doaj   +1 more source

On Extendibility of Evolution Subalgebras Generated by Idempotents

open access: yesMathematics, 2023
In the present paper, we examined the extendibility of evolution subalgebras generated by idempotents of evolution algebras. The extendibility of the isomorphism of such subalgebras to the entire algebra was investigated.
Farrukh Mukhamedov, Izzat Qaralleh
doaj   +1 more source

The idempotent Radon--Nikodym theorem has a converse statement

open access: yes, 2013
Idempotent integration is an analogue of the Lebesgue integration where $\sigma$-additive measures are replaced by $\sigma$-maxitive measures. It has proved useful in many areas of mathematics such as fuzzy set theory, optimization, idempotent analysis ...
Poncet, Paul
core   +3 more sources

Self-adjoint symmetry operators connected with the magnetic Heisenberg ring

open access: yes, 2009
We consider symmetry operators a from the group ring C[S_N] which act on the Hilbert space H of the 1D spin-1/2 Heisenberg magnetic ring with N sites. We investigate such symmetry operators a which are self-adjoint (in a sence defined in the paper) and ...
Bernd Fiedler   +19 more
core   +1 more source

Lie idempotent algebras

open access: yesAdvances in Mathematics, 2003
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
openaire   +1 more source

Idempotents in Matrix Rings [PDF]

open access: yesProceedings of the American Mathematical Society, 1994
Let R be a commutative, von Neumann regular ring and M n ( R ) {M_n}(R) the ring of n × n n \times n matrices over R. What are the idempotents in M n (
Barnett, Christopher, Camillo, Victor
openaire   +1 more source

Product preservation and stable units for reflections into idempotent subvarieties [PDF]

open access: yesCategories and General Algebraic Structures with Applications, 2020
We give a necessary and sufficient condition for the preservation of finite products by a reflection of a variety of universal algebras into an idempotent subvariety.
Isabel A. Xarez, Joao J. Xarez
doaj   +1 more source

Some homological aspects of idempotents in idempotented algebras [PDF]

open access: yesCommunications in Algebra, 2020
We study special idempotents (as described by Bushnell and Kutzko) and split idempotents in the context of module and derived categories for idempotented algebras. We then characterize these concepts for path algebras of quivers.
Arnab Mitra, Rishi Vyas
openaire   +2 more sources

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