Departament de Matemàtiques
Collections in this community
-
Altres [28]
-
Articles de revista [2.663]
-
Capítols de llibre [158]
-
Llibres [26]
-
Presentacions [13]
-
Reports de recerca [376]
-
Working papers [13]
Recent Submissions
-
On the instability, nonexistence and spatial behaviour of the one-dimensional response of a new class of elastic bodies
(2021-05-22)
Article
Restricted access - publisher's policyIn this note we consider 1D problems within the context of a new class of elastic bodies. Under suitable conditions on the constitutive equations we prove instability and nonexistence of solutions similar to those in place ... -
Persistence of periodic traveling waves and Abelian integrals
(2021-08)
Article
Open AccessIt is well known that the existence of traveling wave solutions (TWS) for many partial differential equations (PDE) is a consequence of the fact that an associated planar ordinary differential equation (ODE) has certain ... -
A Nonlinear magnetic stabilization control design for an externally manipulated DC motor: an academic low-cost experimental platform
(2021-05)
Article
Open AccessThe main objective of this paper is to present a position control design to a DC-motor, where the set-point is externally supplied. The controller is conceived by using vibrational control theory and implemented by just ... -
Elimination properties for minimal dominating sets of graphs
(2020-01-01)
Article
Open AccessA dominating set of a graph is a vertex subset such that every vertexnot in the subset is adjacent to at least one in the subset. In this paper westudy whenever there exists a new dominating set contained (respectively, ... -
Phase-locked states in oscillating neural networks and their role in neural communication
(2020-01-01)
Article
Open AccessThe theory of communication through coherence (CTC) proposes that brain oscillations reflect changes in the excitability of neurons, and therefore the successful communication between two oscillating neural populations ... -
Real-time interpolation of global ionospheric maps by means of sparse representation
(2021-06-12)
Article
Restricted access - publisher's policyIn this paper, we propose a method for the generation of real-time global ionospheric map (RT-GIM) of vertical total electron content (VTEC) from GNSS measurements. The need for interpolation arises from the fact that the ... -
Three-dimensional Lotka–Volterra systems with 3:-1:2-resonance
(2021-08)
Article
Open AccessWe study the local integrability at the origin of a nine-parameter family of three-dimensional Lotka–Volterra differential systems with (3:- 1:2)-resonance. We give necessary and sufficient conditions on the parameters of ... -
The automorphism group of the modular curve X* 0 (N) with square-free level
(2021-04-27)
Article
Open AccessWe determine the automorphism group of the modular curve X* 0 (N), obtained as the quotient of the modular curve X0(N) by the group of its Atkin-Lehner involutions, for all square-free values of N. -
Hyperelliptic parametritzations of Q-curves
(2020-07-24)
Article
Open AccessFor a square-free integer N, we present a procedure to compute Q-curves parametrized by rational points of the modular curve X* 0 (N) when this is hyperelliptic. -
Multidimensional data statistical processing of magnetic flow leakage signals from a Colombian gas pipeline
(2020-12-15)
Article
Open AccessThe hydrocarbon industry in Colombia is one of the principal pillars for the Colombian economy, representing around 5% of its gross domestic product. Since petroleum reserves have decreased, gas becomes one main alternative ... -
Predictors of failure with high-flow nasal oxygen therapy in COVID-19 patients with acute respiratory failure: a multicenter observational study
(2021-03-05)
Article
Open AccessPurpose: We aimed to describe the use of high-flow nasal oxygen (HFNO) in patients with COVID-19 acute respiratory failure and factors associated with a shift to invasive mechanical ventilation. Methods: This is a ... -
On the enumeration of bipartite simple games
(2021-07-15)
Article
Restricted access - publisher's policyThis paper provides a classification of all monotonic bipartite simple games. The problem we deal with is very versatile since simple games are inequivalent monotonic Boolean functions, functions that are used in many ...
RSS 1.0