Zobrazeno 1 - 10
of 31
pro vyhledávání: '"Aranda, Andres"'
Autor:
Aranda, Andrés, Braunfeld, Samuel, Chodounský, David, Hubička, Jan, Konečný, Matěj, Nešetřil, Jaroslav, Zucker, Andy
We give an infinitary extension of the Ne\v{s}et\v{r}il-R\"{o}dl theorem for category of relational structures with special type-respecting embeddings.
Comment: 5 pages. Extended abstract
Comment: 5 pages. Extended abstract
Externí odkaz:
http://arxiv.org/abs/2303.12679
Autor:
Becerril-Jarque, Santiago, Marchena, Álvaro, Roldán Aranda, Andrés, Araya, Pablo, García Baonza, Roberto, García, Agustín, Aguilar, Jorge, Fernández, Luis, Wiacek, Urszula, Prokopowicz, Rafal, Castellanos, Jesús, Rapisarda, David
Publikováno v:
In Nuclear Materials and Energy September 2024 40
Autor:
Aranda, Andrés
Let $\mathrm{XY_{L,T}}$ denote the class of countably infinite $L$-structures that satisfy the axioms $T$ and in which all homomorphisms of type X (these could be homomorphisms, monomorphisms, or isomorphisms) between finite substructures of $M$ are
Externí odkaz:
http://arxiv.org/abs/2002.07099
Autor:
Aranda, Andres
The Lachlan-Woodrow Theorem identifies ultrahomogeneous graphs up to isomorphism. Recently, the present author and D. Hartman classified MB-homogeneous graphs up to bimorphism-equivalence. We extend those results in this paper, showing that every IB-
Externí odkaz:
http://arxiv.org/abs/1909.02920
Autor:
Aranda, Andrés, Hartman, David
We show that the independence number of a countably infinite HH-homogeneous graph that does not contain the Rado graph as a spanning subgraph is finite and present a classification of MB-homogeneous graphs up to bimorphism-equivalence as a consequenc
Externí odkaz:
http://arxiv.org/abs/1902.03126
Autor:
Aranda, Andrés, Hartman, David
In~\cite{Hartman:2014}, Hartman, Hubi\v cka and Ma\v sulovi\'c studied the hierarchy of morphism extension classes for finite $L$-colored graphs, that is, undirected graphs without loops where sets of colors selected from $L$ are assigned to vertices
Externí odkaz:
http://arxiv.org/abs/1805.01781
Autor:
Aranda, Andrés, Bradley-Williams, David, Hubička, Jan, Karamanlis, Miltiadis, Kompatscher, Michael, Konečný, Matěj, Pawliuk, Micheal
We investigate Ramsey expansions, the coherent extension property for partial isometries (EPPA), and the existence of a stationary independence relation for all classes of metrically homogeneous graphs from Cherlin's catalogue. We show that, with the
Externí odkaz:
http://arxiv.org/abs/1707.02612
Autor:
Aranda, Andrés, Bradley-Williams, David, Hng, Eng Keat, Hubička, Jan, Karamanlis, Miltiadis, Kompatscher, Michael, Konečný, Matěj, Pawliuk, Micheal
Publikováno v:
Contributions to Discrete Mathematics, Vol. 16 No. 2 (2021), 71-89
We prove that certain classes of metrically homogeneous graphs omitting triangles of odd short perimeter as well as triangles of long perimeter have the extension property for partial automorphisms and we describe their Ramsey expansions.
Commen
Commen
Externí odkaz:
http://arxiv.org/abs/1706.00295
Autor:
Aranda, Andres
We present some results on the structure of line graphs of triangle-free graphs and a homogenization of the line graph of the universal homogeneous triangle-free graph in a finite relational language with arity 4. This result is relevant to the study
Externí odkaz:
http://arxiv.org/abs/1604.01374