Results 31 to 40 of about 4,244 (151)

Cubic Idempotence Preserver Problem in Hermitian Matrix Space

open access: yesJournal of Harbin University of Science and Technology
Preserver problems are the study of preserving maps of certain invariants on a given mathematical structure. In order to preserve the cubic idempotent of Hermitian matrix space, we study the image from the basis of 2 × 2-dimensional Hermitian matrix ...
ZHANG Haoran, XU Jinli
doaj   +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

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

Optimising Wave Energy Plant Location Through Neutrosophic Multi‐Criteria Group Decision‐Making

open access: yesCAAI Transactions on Intelligence Technology, EarlyView.
ABSTRACT The global shift towards sustainable energy has intensified research into renewable sources, particularly wave energy. Pakistan, with its long coastline, holds significant potential for wave energy development. However, identifying optimal locations for wave energy plants involves evaluating complex, multi‐faceted criteria.
Hafiz Muhammad Athar Farid   +4 more
wiley   +1 more source

EF+EX Forest Algebras

open access: yes, 2014
We examine languages of unranked forests definable using the temporal operators EF and EX. We characterize the languages definable in this logic, and various fragments thereof, using the syntactic forest algebras introduced by Bojanczyk and Walukiewicz ...
H Straubing   +3 more
core   +1 more source

Nonnegative Idempotent Matrices [PDF]

open access: yesProceedings of the American Mathematical Society, 1974
Elementary ideas in the theory of partially ordered linear algebras are used to describe the structure of nonnegative idempotent matrices. In particular, we obtain a kind of “spectral decomposition” theorem for such matrices.
openaire   +2 more sources

Unstructured Purity

open access: yesNoûs, EarlyView.
ABSTRACT Purity is the principle that fundamental facts only have fundamental constituents. In recent years, it has played a significant (if sometimes implicit) role in metaphysical theorizing. A philosopher will argue that a fact [p]$[p]$ contains a derivative entity and cite Purity as a reason to deny that [p]$[p]$ is fundamental. I argue that recent
Samuel Z. Elgin
wiley   +1 more source

A Collapse Result in the Mereology of Properties

open access: yesRatio, EarlyView.
ABSTRACT I examine five principles about the metaphysics of properties, each of which has been defended in the literature: (1) the sum of properties is their corresponding conjunctive property, (2) the mereology of properties is classical, (3) properties are individuated by necessary co‐instantiation, (4) sums of objects belonging to different ...
Alejandro G. Di Rienzo
wiley   +1 more source

Three‐Way Data Analysis With Explainable Tucker3 Clustering (XT3Clus)

open access: yesApplied Stochastic Models in Business and Industry, Volume 42, Issue 1, January/February 2026.
ABSTRACT In an era of increasingly complex data, three‐way arrays capturing information across units, variables and occasions are ubiquitous in fields from chemometrics to finance. However, extracting meaningful and interpretable patterns from such data remain a significant challenge.
Mariaelena Bottazzi Schenone   +3 more
wiley   +1 more source

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