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Creator:
Ježek, Jaroslav and Slavík, Václav
Format:
bez média and svazek
Type:
model:article and TEXT
Subject:
chain and congruence lattice
Language:
English
Description:
Characterization of congruence lattices of finite chains with either one or two endomorphisms is given.
Rights:
http://creativecommons.org/publicdomain/mark/1.0/ and policy:public
Creator:
Ježek, Jaroslav and Slavík, Václav
Format:
bez média and svazek
Type:
model:article and TEXT
Subject:
semilattice and embedding
Language:
English
Description:
A finite set of finite semilattices is said to be incomparably continuable if it can be extended to an infinite set of pairwise incomparable (with respect to embeddability) finite semilattices. After giving some simple examples we show that the set consisting of the four-element Boolean algebra and the four-element fork is incomparably continuable.
Rights:
http://creativecommons.org/publicdomain/mark/1.0/ and policy:public
Creator:
Ježek, Jaroslav and Slavík, Václav
Format:
bez média and svazek
Type:
model:article and TEXT
Subject:
random posets , random lattices , algorithm , random lattice terms , lattice , and poset
Language:
English
Description:
Algorithms for generating random posets, random lattices and random lattice terms are given.
Rights:
http://creativecommons.org/publicdomain/mark/1.0/ and policy:public