Results 11 to 20 of about 123,633 (311)

Congruence Extensions in Congruence–Modular Varieties

open access: yesAxioms
We investigate from an algebraic and topological point of view the minimal prime spectrum of a universal algebra, considering the prime congruences with respect to the term condition commutator.
George Georgescu   +2 more
doaj   +3 more sources

Removahedral Congruences versus Permutree Congruences [PDF]

open access: yesThe Electronic Journal of Combinatorics, 2021
The associahedron is classically constructed as a removahedron, i.e. by deleting inequalities in the facet description of the permutahedron. This removahedral construction extends to all permutreehedra (which interpolate between the permutahedron, the associahedron and the cube).
Albertin, Doriann   +2 more
openaire   +4 more sources

CONGRUENCE OF ULTRAFILTERS [PDF]

open access: yesThe Journal of Symbolic Logic, 2021
AbstractWe continue the research of the relation $\hspace {1mm}\widetilde {\mid }\hspace {1mm}$ on the set $\beta \mathbb {N}$ of ultrafilters on $\mathbb {N}$ , defined as an extension of the divisibility relation. It is a quasiorder, so we see it as an order on the set of $=_{\sim }$ -equivalence classes, where $\mathcal {F}=_{\sim }\mathcal ...
openaire   +3 more sources

PRINCIPAL AND SYNTACTIC CONGRUENCES IN CONGRUENCE-DISTRIBUTIVE AND CONGRUENCE-PERMUTABLE VARIETIES [PDF]

open access: yesJournal of the Australian Mathematical Society, 2008
AbstractWe give a new proof that a finitely generated congruence-distributive variety has finitely determined syntactic congruences (or, equivalently, term finite principal congruences), and show that the same does not hold for finitely generated congruence-permutable varieties, even under the additional assumption that the variety is residually very ...
Davey, Brian A.   +3 more
openaire   +2 more sources

Ambidextrous Leadership and Employee Work Outcomes: A Paradox Theory Perspective

open access: yesFrontiers in Psychology, 2020
Numerous studies have examined the influence of ambidextrous leadership on employee work outcomes, but few have explored the issue through the congruence or incongruence of two seemingly conflicting leadership styles.
Zhuopin Guo   +3 more
doaj   +1 more source

Congruence for Structural Congruences [PDF]

open access: yes, 2005
Structural congruences have been used to define the semantics and to capture inherent properties of language constructs. They have been used as an addendum to transition system specifications in Plotkin’s style of Structural Operational Semantics (SOS).
Mousavi, M.R., Reniers, M.A.
openaire   +2 more sources

Canonical forms for unitary congruence and *congruence [PDF]

open access: yesLinear and Multilinear Algebra, 2009
We use methods of the general theory of congruence and *congruence for complex matrices--regularization and cosquares-to determine a unitary congruence canonical form (respectively, a unitary *congruence canonical form) for complex matrices A such that \bar{A}A (respectively, A^2) is normal.
Horn, Roger A., Sergeichuk, Vladimir V.
openaire   +2 more sources

The Influence of Leader-Follower Cognitive Style Similarity on Followers’ Organizational Citizenship Behaviors

open access: yesFrontiers in Psychology, 2020
While cognitive style congruence has been highlighted as a potentially important variable influencing performance outcomes in work-related contexts, studies of its influence are scarce. This paper examines the influence of leader-follower cognitive style
Steven J. Armstrong   +2 more
doaj   +1 more source

THE LATTICE OF CONGRUENCES ON A TERNARY SEMIGROUP [PDF]

open access: yesJournal of Algebraic Systems, 2018
In this paper we investigate some properties of congruences on ternary semigroups. We also define the notion of congruence on a ternary semigroup generated by a relation and we determine the method of obtaining a congruence on a ternary semigroup T from a
N. Ashrafi, Z. Yazdanmehr
doaj   +1 more source

Cladistics and Stratigraphy

open access: yesGeosciences, 2023
Using cladistic phylogenies (cladograms) to evaluate stratigraphy (taxon distributions and correlations) necessitates various assumptions that include all of the assumptions built into the cladogram, assuming the cladogram is “correct” and that new taxa ...
Spencer G. Lucas
doaj   +1 more source

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