Zobrazeno 1 - 10
of 813
pro vyhledávání: '"A, Prieto Martínez"'
We provide a complete study of existence and uniqueness (uniqueness up to multiples in the case $\mathbf{d} = \mathbf{0}$) of non-negative and non-trivial solutions $\mathbf{x}$ for the linear system $(\mathbf{I}- \mathbf{A})\mathbf{x} = \mathbf{d}$
Externí odkaz:
http://arxiv.org/abs/2401.15099
Autor:
Prieto-Martínez, Luis Felipe
Several authors have remarked the convenience of understanding the different notions of center appearing in Geometry (centroid of a set of points, incenter of a triangle, center of a conic and many others) as functions. The most general way to do so
Externí odkaz:
http://arxiv.org/abs/2301.09945
Publikováno v:
Academia XXII, Vol 15, Iss 30 (2024)
El Centro Histórico de la ciudad de Morelia posee doce jardines públicos cuya imagen y fisonomía actual sugieren que se han mantenido intactos desde sus orígenes en el siglo xix. El objetivo de este artículo es mostrar cómo, principalmente en e
Externí odkaz:
https://doaj.org/article/4fc1694c45e840fe97327cecd5403737
In this paper we revisit a result due to Franz Rellich on smoothness of solutions of parametrized linear systems. With this result as a starting point, we obtain finer smoothness results in an elementary fashion and propose an efficient adjoint algor
Externí odkaz:
http://arxiv.org/abs/2301.13164
Autor:
Prieto-Martínez, Luis Felipe
There are several remarkable points, defined for polygons and multisets of points in the plane, called centers (such as the centroid). To make possible their study, there exists a formal definition for the concept of center in both cases. In this pap
Externí odkaz:
http://arxiv.org/abs/2206.13253
In this paper we provide a review of the concept of center of a $n$-gon, generalizing the original idea given by C. Kimberling for triangles. We also generalize the concept of central line for $n$-gons for $n\geq 3$ and establish its basic properties
Externí odkaz:
http://arxiv.org/abs/2204.08342
Autor:
Prieto-Martínez, Luis Felipe
In 1946, J. Rosenbaum proposed a family of problems asking how many power points are needed to ensure that the boundary $c$ of a given convex body is a disk. In this paper, we use Riordan matrices to show that, if this curve $c$ is analytic, then one
Externí odkaz:
http://arxiv.org/abs/2201.07892
Autor:
Castro González, María Guadalupe1,2 (AUTHOR) guadalupe.castro@usc.es, Prieto Martínez, María Pilar1,2 (AUTHOR) pilar.prieto@usc.es, Martínez Cortizas, Antonio3,4 (AUTHOR) antonio.martinez.cortizas@usc.es
Publikováno v:
Minerals (2075-163X). Sep2024, Vol. 14 Issue 9, p880. 18p.
We calculate the derived series of the Riordan group. To do that, we study a nested sequence of its subgroups, herein denoted by $\mathcal G_k$. By means of this sequence, we first obtain the n-th commutator subgroup of the Associated subgroup. This
Externí odkaz:
http://arxiv.org/abs/2108.00486
Characteristic curves and the exponentiation in the Riordan Lie group: A connection through examples
Publikováno v:
In Journal of Mathematical Analysis and Applications 1 April 2024 532(1)