Buscar
Computing the Matrix Exponential with an Optimized Taylor Polynomial Approximation
(MDPI, 2019)
A new way to compute the Taylor polynomial of a matrix exponential is presented
which reduces the number of matrix multiplications in comparison with the de-facto standard
Paterson-Stockmeyer method for polynomial ...
Eliahou number, Wilf function and concentration of a numerical semigroup
(Taylor & Francis, 2022-03-30)
We give an estimate of the minimal positive value of the Wilf function of a numerical semigroup in terms of its concentration. We describe necessary conditions for a numerical semigroup to have a negative Eliahou number ...
Using videos to improve oral presentation skills in distance learning engineering master's degrees
(Taylor & Francis, 2019-09-11)
In this paper we present a pilot study to improve the learning process on distance learning Engineering master's degrees. We propose an activity where the students individually produce a video in which they explain the ...
Lower bounds for the volume with upper bounds for the Ricci Curvature in dimension three
(WileyLondon Mathematical Society, 2020)
In this note, we provide several lower bounds for the volume of a geodesic ball within the injectivity radius in a 3‐dimensional Riemannian manifold assuming only upper bounds for the Ricci curvature.
Dynamics of subfamilies of Ostrowski–Chun methods
(Elsevier, 2020-09-25)
In this paper, we classify the fixed and critical points of the bi-parametric family of Ostrowski–Chun methods applied onquadratic polynomials. We obtain the values of the parameters that reduce the number ...
On using Reproducing Kernel Hilbert Spaces for the analysis of Replicated Spatial Point Processes
(Elsevier, 2023)
This paper focuses on the use of the theory of Reproducing
Kernel Hilbert Spaces in the statistical analysis of replicated point
processes. We show that spatial point processes can be observed
as random variables in a ...
A note on the Baker–Campbell–Hausdorff series in terms of right-nested commutators
(Springer, 2021-01-27)
We get compact expressions for the Baker–Campbell–Hausdorff
series Z = log(eX eY ) in terms of right-nested commutators. The reduction in the number of terms originates from two facts: (i) we use as a
starting point an ...
New binary and ternary LCD codes
(IEEE, 2018-05-09)
LCD codes are linear codes with important cryptographic applications. Recently, a method has been presented
to transform any linear code into an LCD code with the same parameters when it is supported on a finite field ...
Modeling Influence of Soil Properties in Different Gradients of Soil Moisture: The Case of the Valencia Anchor Station Validation Site, Spain
(Taylor and Francis, 2021-12-19)
The prediction of spatial and temporal variation of soil water content brings numerous
benefits in the studies of soil. However, it requires a considerable number of covariates to be included
in the study, complicating ...
High order integrators obtained by linear combinations of symmetric-conjugate compositions
(Elsevier, 2022-02-01)
A new family of methods involving complex coefficients for the numerical integration of differential equations is presented and analyzed. They are constructed as linear combinations of symmetric-conjugate compositions ...