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of 355
pro vyhledávání: '"Montejano L"'
In this paper, we present necessary and sufficient combinatorial conditions for a link to be projective, that is, a link in $RP^3$. This characterization is closely related to the notions of antipodally self-dual and antipodally symmetric maps. We al
Externí odkaz:
http://arxiv.org/abs/2210.04053
In this article, we obtain closed formulae for the Italian domination number of rooted product graphs. As a particular case of the study, we derive the corresponding formulas for corona graphs, and we provide an alternative proof that the problem of
Externí odkaz:
http://arxiv.org/abs/2006.02124
The family of Directed Acyclic Graphs as well as some related graphs are analyzed with respect to extremal behavior in relation with the family of intersection graphs for families of boxes with transverse intersection.
Comment: 13 pages, 4 figur
Comment: 13 pages, 4 figur
Externí odkaz:
http://arxiv.org/abs/1604.00612
The main purpose of this paper is to study extremal results on the intersection graphs of boxes in $\R^d$. We calculate exactly the maximal number of intersecting pairs in a family $\F$ of $n$ boxes in $\R^d$ with the property that no $k+1$ boxes in
Externí odkaz:
http://arxiv.org/abs/1412.8190
Publikováno v:
Computational Geometry: Theory and Applications 48 (2015), no. 3, 221-224
Let $\mathcal{F}$ be a family of $n$ axis-parallel boxes in $\mathbb{R}^d$ and $\alpha\in (1-1/d,1]$ a real number. There exists a real number $\beta(\alpha )>0$ such that if there are $\alpha {n\choose 2}$ intersecting pairs in $\mathcal{F}$, then $
Externí odkaz:
http://arxiv.org/abs/1410.0467
Autor:
Montejano, L., Karasev, R. N.
Publikováno v:
Discrete and Computational Geometry, 46:2, 2011, 283-300
Let $\mathcal F$ be a family of compact convex sets in $\mathbb R^d$. We say that $\mathcal F $ has a \emph{topological $\rho$-transversal of index $(m,k)$} ($\rho
Externí odkaz:
http://arxiv.org/abs/1006.0104
Autor:
Montejano, L., Shchepin, E. V.
Publikováno v:
Algebr. Geom. Topol. 1 (2001) 435-444
The purpose of this paper is to study how small orbits of periodic homemorphisms of spheres can be.
Comment: Published by Algebraic and Geometric Topology at http://www.maths.warwick.ac.uk/agt/AGTVol1/agt-1-22.abs.html
Comment: Published by Algebraic and Geometric Topology at http://www.maths.warwick.ac.uk/agt/AGTVol1/agt-1-22.abs.html
Externí odkaz:
http://arxiv.org/abs/math/0110061
Publikováno v:
In Advances in Applied Mathematics January 2017 82:83-101
Publikováno v:
In Discrete Mathematics 6 December 2015 338(12):2545-2548
Publikováno v:
In Computational Geometry: Theory and Applications March 2015 48(3):221-224