Now showing items 51-58 of 58

• #### The Error in an Alternating Series ﻿

(2018-03)
We present a new proof of Johnsonbaugh’s estimates for the error in an alternating series based on an idea of R. M. Young. We also use this same idea to prove the convergence of the Euler transform and a corresponding error ...
• #### The Gromov’s centralizer theorem for semisimple Lie group actions ﻿

(2017-10)
We give a new version of the Gromov’s centralizer theorem in the case of semisimple Lie group actions and arbitrary rigid geometric structures of algebraic type.
• #### The pseudo-fundamental group scheme ﻿

(2019)
Let X be any scheme defined over a Dedekind scheme S with a given section x ∈ X (S). We prove the existence of a pro-finite S-group scheme א (X,x) and a universal א (X,x)-torsor dominating all the pro-finite pointed torsors ...
• #### The role of short-term immigration on disease dynamics: An SIR model with age-structure ﻿

(2019-02-18)
We formulate an age-structured nonlinear partial differential equation model that features short-term immigration effects in a population. Individuals can immigrate into the population as any of the three stages in the ...
• #### Tres caminos hacia la geometría elemental ﻿

(Congreso CANP 2012: "Construcción de Capacidades en Matemáticas y Educación Matemática", 2012-08)
La enseñanza de la geometría a nivel preuniversitaria suscita debates sobre su fundamentación, su puesta en práctica y su engranaje con otros áreas de la matemática. Aquí se ofrecen algunas ideas para explorar de qué ...
• #### Uniform sparse bounds for discrete quadratic phase Hilbert transforms ﻿

(2017-09)
Consider the discrete quadratic phase Hilbert Transform acting on $\ell^{2}(\mathbb{Z})$ finitely supported functions $$H^{\alpha} f(n) : = \sum_{m \neq 0} \frac{e^{i\alpha m^2} f(n - m)}{m}.$$ We prove that, ...
• #### Vertical Transmission in a Two-Strain Model of Dengue Fever ﻿

(2014)
The role of vertical transmission in vectors has rarely been addressed in the study of dengue dynamics and control, in part because it was not considered a critical population-level factor. In this paper, we apply the ...
• #### XIX Simposio Internacional de Métodos Matemáticos Aplicados a las Ciencias ﻿

(2014-05-02)
El XIX° Simposio Internacional de Métodos Matemáticos Aplicados a las Ciencias (XIX SIMMAC) es el evento de matemática aplicada más importante de América Central. Es organizado por el Centro de Investigación en Matemática ...