Zobrazeno 1 - 10
of 3 231
pro vyhledávání: '"González, Jesús A."'
For a graph $G$, let Conf$(G,n)$ denote the classical configuration space of $n$ labelled points in $G$. Abrams introduced a cubical complex, denoted here by DConf$(G,n)$, sitting inside Conf$(G,n)$ as a strong deformation retract provided $G$ is sui
Externí odkaz:
http://arxiv.org/abs/2407.07854
We formulate a simple model for the bounded derived category of gentle algebras in terms of marked ribbon graphs and their walks, in order to analyze indecomposable objects, Auslander-Reiten triangles and homological bilinear forms, and to provide so
Externí odkaz:
http://arxiv.org/abs/2407.04817
Let $M^{(k)}_{d}(n)$ be the manifold of $n$-tuples $(x_1,\ldots,x_n)\in(\mathbb{R}^d)^n$ having non-$k$-equal coordinates. We show that, for $d\geq2$, $M^{(3)}_{d}(n)$ is rationally formal if and only if $n\leq 6$. This stands in sharp contrast with
Externí odkaz:
http://arxiv.org/abs/2401.01449
Autor:
Gonzalez, Emilio J., Gonzalez, Jesus
For a positive integer $n$ and a finite simplicial complex $K$, we describe an algorithmic procedure constructing a maximal discrete gradient field $W(K,n)$ on Abrams' discretized configuration space $\text{DConf}(K,n)$. Computer experimentation show
Externí odkaz:
http://arxiv.org/abs/2307.14454
Bidirected graphs are multigraphs where every edge has an independent direction at each end. In the paper, with an arbitrary bidirected graph we associate a non-negative integral quadratic form (called the incidence form of the graph), and determine
Externí odkaz:
http://arxiv.org/abs/2304.12555
Autor:
Peralta, Javier, Prieto, Juan A., Orozco-Sáenz, Pilar, González, Jesús, Trujillo, Gonzalo, Torres, Lucía, Sánchez, Alberto, Arnedo, Manuel
Publikováno v:
Research Notes of the AAS 7, 53 (2023)
Astronomy and astrophysics are regarded as highly motivating topics for students in primary and secondary schools, and they have been a recurrent and effective resource to inspire passion about science. In fact, during the last years we have witnesse
Externí odkaz:
http://arxiv.org/abs/2303.10010
Autor:
Bustamante-González Jesús Dámaso, Gutiérrez-Díaz Dulce Leticia, Baca-Alejo Judith Sarai, Figueroa-Lucero Gerardo, Arenas-Ríos Edith, Hernández-Rubio María Cecilia, Ávalos-Rodríguez Alejandro
Publikováno v:
Fisheries and Aquatic Sciences, Vol 27, Iss 5, Pp 306-313 (2024)
The genus Chirostoma is endemic from the Mesa Central of Mexico. It is conformed of 18 species and six subspecies. Five species are in some category of risk, because of this, Chirostoma jordani is an excellent model species to implement biotechnologi
Externí odkaz:
https://doaj.org/article/6c666f0179f0472086774876feb43c8a
The higher topological complexity of a space $X$, $\text{TC}_r(X)$, $r=2,3,\ldots$, and the topological complexity of a map $f$, $\text{TC}(f)$, have been introduced by Rudyak and Pave\v{s}i\'{c}, respectively, as natural extensions of Farber's topol
Externí odkaz:
http://arxiv.org/abs/2212.03441
For finite connected graphs $\Gamma$ and $G$, with $\Gamma$ admitting a free involution $\tau$, we characterize the based homotopy classes $\alpha\in[\Gamma,G]$ for which the Borsuk-Ulam property holds in the sense of Gon\c{c}alves, Guaschi and Caste
Externí odkaz:
http://arxiv.org/abs/2211.05279
Autor:
González, Emilio J., González, Jesús
We introduce an algorithm that constructs a discrete gradient field on any simplicial complex. We show that, in all situations, the gradient field is maximal possible and, in a number of cases, optimal. We make a thorough analysis of the resulting gr
Externí odkaz:
http://arxiv.org/abs/2207.07046