Results 21 to 30 of about 116 (68)

A special class of congruences on $\kappa$-frames

, 2017
Madden has shown that in contrast to the situation with frames, the smallest dense quotient of a $\kappa$-frame need not be Boolean. We characterise these so-called d-reduced $\kappa$-frames as those which may be embedded as a generating sub-$\kappa ...
Manuell, Graham
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Solution sets of systems of equations over finite lattices and semilattices [PDF]

, 2020
Solution sets of systems of homogeneous linear equations over fields are characterized as being subspaces, i.e., sets that are closed under linear combinations.
Tóth Endre, Waldhauser Tamás
core   +2 more sources

Corrigendum to Taxonomies of Model-theoretically Defined Topological Properties [PDF]

, 1991
An error has been found in the cited paper; namely, Theorem 3.1 is ...
Bankston, Paul
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A note on the regularity of Hibi rings [PDF]

, 2014
We compute the regularity of the Hibi ring of any finite distributive lattice in terms of its poset of join irreducible elements.Comment: 5 pages, 2 ...
Ene, Viviana, Herzog, Jürgen, Madani, Sara Saeedi   +2 more
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Closure Operators on Complete Almost Distributive Lattices-III [PDF]

, 2015
In this paper, we prove that the lattice of all closure operators of a complete Almost Distributive Lattice L with fixed maximal element m is dual atomistic.
Rao, Calyampudi Radhakrishna, Undurthi, Venugopalam   +1 more
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A Classification of Hull Operators in Archimedean Lattice-Ordered Groups With Unit [PDF]

, 2020
The category, or class of algebras, in the title is denoted by W. A hull operator (ho) in W is a reflection in the category consisting of W objects with only essential embeddings as morphisms. The proper class of all of these is hoW.
Carrera, Ricardo Enrique, Hager, Anthony W.   +1 more
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Hyperbinary partitions and q-deformed rationals

Forum of Mathematics, Sigma
A hyperbinary partition of the nonnegative integer n is a partition where every part is a power of $2$ and every power of $2$ appears at most twice.
Thomas McConville, James Propp, Bruce Sagan   +2 more
doaj   +1 more source

Free $Q$-distributive lattice over an $n$-element chain [PDF]

, 2004
In this note we provide an explicit construction of $FQ({\bf n})$, the free $Q$-distributive lattice over an $n$-element chain, different from those given by Cignoli [4] and Abad--Díaz Varela [1], and prove that $FQ({\bf n})$ can be endowed with a ...
Abad, Manuel, Monteiro, Luis, Zander, Marta Amalia   +2 more
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Hubungan antara latis distributif dan aljabar median

Majalah Ilmiah Matematika dan Statistika
Let M be a non-empty set equipped by a ternary operation m:M×M×M→M. The set M is called a median algebra if (M,m) satisfies these properties (1) majority: m(a,a,b)=a, associativity: m(a,b,m(c,b,d) = m(m(a,b,c),b,d), and commutativity: m(a,b,c) = m(a,c,b)
Novita Dahoklory, Henry Willyam Michel Patty   +1 more
doaj   +1 more source

On the paracompactness of frames [PDF]

, 1992
summary:Through the study of frame congruences, new characterizations of the paracompactness of frames are ...
Chen, Xiangdong
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