Zobrazeno 1 - 7
of 7
pro vyhledávání: '"Ratana Srithus"'
Publikováno v:
Asian-European Journal of Mathematics.
Consider a finite ordered set [Formula: see text] whose order forms a zigzag. For an equivalence [Formula: see text] on [Formula: see text], let [Formula: see text] be the set of all order homomorphism preserving [Formula: see text]. In this paper, w
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::fb00c6c7788c7b892a08dec58f83a785
https://doi.org/10.1142/s1793557123501541
https://doi.org/10.1142/s1793557123501541
Various regularities for semigroups of transformations on a finite set determined by a zig-zag order
Publikováno v:
Asian-European Journal of Mathematics. 15
Consider a finite ordered set [Formula: see text] with a zig-zag order. In this paper, we consider the semigroup [Formula: see text] of all compressing-preserving transformations on [Formula: see text]. Necessary and sufficient conditions for [Formul
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::ae0ead9167f42e256f56bbfde1fda813
https://doi.org/10.1142/s1793557122502084
https://doi.org/10.1142/s1793557122502084
Autor:
Ratana Srithus, Udom Chotwattakawanit
Publikováno v:
Algebra universalis. 76:111-126
Let P be a finite relational structure that admits a (k + 1)-ary nearunanimity polymorphism. Then the NU Duality Theorem tells us that the algebra , whose operations are the polymorphisms of P, is dualisable with a dualising alter ego given by . We s
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::7242a11e93bb90bcc39a46425515cead
https://doi.org/10.1007/s00012-016-0388-x
https://doi.org/10.1007/s00012-016-0388-x
Autor:
Ketsarin Jendana, Ratana Srithus
Publikováno v:
Communications of the Korean Mathematical Society. 30:349-361
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::761b0ebdf38751c2495a0f3798377eed
https://doi.org/10.4134/ckms.2015.30.4.349
https://doi.org/10.4134/ckms.2015.30.4.349
Publikováno v:
Asian-European Journal of Mathematics. :1650003
It is well-known that the transformation semigroup [Formula: see text] is regular, but their subsemigroups need not be. A fence is an ordered set that the order forms a path with alternating orientation. Consider [Formula: see text] as the base set o
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::408b78bf02c53bb243b7dc9a45f3aa04
https://doi.org/10.1142/s1793557116500030
https://doi.org/10.1142/s1793557116500030
Autor:
Klaus Denecke, Ratana Srithus
Publikováno v:
Advances in Algebra and Combinatorics.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::48a39d86036a0fa4dfb86b1a6945445e
https://doi.org/10.1142/9789812790019_0006
https://doi.org/10.1142/9789812790019_0006
Autor:
Klaus Denecke, Ratana Srithus
Publikováno v:
Asian-European Journal of Mathematics. :1350001
We determine all V-proper hypersubstitutions for the variety of pseudo-complemented semilattices. Moreover, for any monoid [Formula: see text] of hypersubstitutions we will give the greatest M-solid variety of pseudo-complemented semilattices.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::12eeef3aa227ed358d8131ae578fabf9
https://doi.org/10.1142/s1793557113500010
https://doi.org/10.1142/s1793557113500010