Zobrazeno 1 - 10
of 12
pro vyhledávání: '"Maja Pech"'
Autor:
Maja Pech, Christian Pech
Publikováno v:
Discrete Mathematics. 342:1361-1377
Highly regular graphs for which not all regularities are explainable by symmetries are fascinating creatures. Some of them like, e.g., the line graph of W.~Kantor's non-classical $\mathrm{GQ}(5^2,5)$, are stumbling stones for existing implementations
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::ae0bb725bad7a9c482cd0d740b301620
https://doi.org/10.1016/j.disc.2019.01.019
https://doi.org/10.1016/j.disc.2019.01.019
Publikováno v:
European Journal of Combinatorics
The notion of homomorphism homogeneity was introduced by Cameron and Nesetřil as a natural generalization of the classical model-theoretic notion of homogeneity. A relational structure is called homomorphism homogeneous (HH) if every homomorphism be
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::7472dcf913450424622806c2c463bd56
https://doi.org/10.1016/j.ejc.2020.103142
https://doi.org/10.1016/j.ejc.2020.103142
Autor:
Maja Pech, Christian Pech
Publikováno v:
Applied Categorical Structures. 26:799-820
Fraisse’s theorem characterizing the existence of universal homogeneous structures is a cornerstone of model theory. A categorical version of these results was developed by Droste and Gobel. Such an abstract version of Fraisse theory allows to cons
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::04726b7752afc281ed824363cdb2a5bd
https://doi.org/10.1007/s10485-018-9519-1
https://doi.org/10.1007/s10485-018-9519-1
Autor:
Maja Pech, Christian Pech
Publikováno v:
Algebra Universalis. (2):1-24
Every clone of functions comes naturally equipped with a topology, the topology of pointwise convergence. A clone $$\mathfrak {C}$$ is said to have automatic homeomorphicity with respect to a class $$\mathcal {K}$$ of clones, if every clone isomorphi
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::69d735f89df1f62195038c0fa89f15dc
https://www.cris.uns.ac.rs/record.jsf?recordId=107302&source=OpenAIRE&language=en
https://www.cris.uns.ac.rs/record.jsf?recordId=107302&source=OpenAIRE&language=en
Autor:
Maja Pech, Christian Pech
Publikováno v:
Mathematical Logic Quarterly. 62:25-34
A structure is called weakly oligomorphic if it realizes only finitely many n-ary positive existential types for every n. The goal of this paper is to show that the notions of homomorphism-homogeneity, and weak oligomorphy are not only completely ana
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::c3c15f35d360ec1f09d3f004739dbf53
https://doi.org/10.1002/malq.201400067
https://doi.org/10.1002/malq.201400067
Autor:
Maja Pech, Christian Pech
Publikováno v:
Algebra Universalis. (2)
In this paper, motivated by classical results by Sierpinski, Arnold and Kolmogorov, we derive sufficient conditions for polymorphism clones of homogeneous structures to have a generating set of bounded arity. We use our findings in order to describe
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::e8963a697f826c0b601d45af8dee4008
https://doi.org/10.1007/s00012-018-0527-7
https://doi.org/10.1007/s00012-018-0527-7
Autor:
Maja Pech, Christian Pech
Every transformation monoid comes equipped with a canonical topology-the topology of pointwise convergence. For some structures, the topology of the endomorphism monoid can be reconstructed from its underlying abstract monoid. This phenomenon is call
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::29282a585bd4def4d6d61af0351bd125
Autor:
Dragan Mašulović, Maja Pech
Publikováno v:
Fundamenta Mathematicae. 212:17-34
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::a595843ada1df86831b5e00d37feed43
https://doi.org/10.4064/fm212-1-2
https://doi.org/10.4064/fm212-1-2
Autor:
Maja Pech
Publikováno v:
Algebra universalis. 63:65-82
In this paper, we develop local methods for studying the structure of the weak Krasner algebras generated by Rosenberg relations. In particular, this gives a complete understanding of the distributive lattices of m-ary relations in these algebras. Su
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::2d16a02495410918ac267882c4838593
https://doi.org/10.1007/s00012-010-0065-4
https://doi.org/10.1007/s00012-010-0065-4
Autor:
Maja Pech, Christian Pech
Transformation monoids carry a canonical topology --- the topology of point-wise convergence. A closed transformation monoid $\mathfrak{M}$ is said to have automatic homeomorphicity with respect to a class $\mathcal{K}$ of structures, if every monoid
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::36a3e11506fdea18ea5f8b773e7c284d
http://arxiv.org/abs/1409.0841
http://arxiv.org/abs/1409.0841