Publications
Publicações

Publications

Positive topological entropy for semi-Riemannian geodesic flows

Proceedings of the American Mathematical Society | 2025

Mário Bessa

João Lopes Dias

Pedro Matias

DOI

Abordagem prática para a utilização do software octave: transferência de calor por condução unidimensional em regime transiente

Caires Sassupe

Armando Soares

Manuel Reis

DOI

Harnessing Information Processing Theory: Key Organizational Initiatives for Digital Transformation Projects Success

International Journal of Managing Projects in Business | 2025

Nilton Takagi

J. Varajão

Susana Faria

An upper bound for the rational topological complexity of a family of elliptic spaces

Proceedings of the American Mathematical Society | 2025

Said Hamoun

Youssef Rami

Neural Chronos ODE: Modelling bidirectional temporal patterns in time-series data

Expert Systems with Applications | 2025
DOI

Lagrange multipliers and characteristic functions

Journal of Differential Equations | 2025
DOI

Artificial intelligence and blockchain in clinical trials: enhancing data governance efficiency, integrity, and transparency

Bioanalysis | 2025

Victor Leiva

DOI

An evolutionary vector-valued variational inequality and Lagrange multiplier

Journal of Mathematical Analysis and Applications | 2025
DOI

Characterization of the Drazin Index for Double Star Digraph Matrices

DOI

On Gersenne Sequence: A Study of One Family in the Horadam-Type Sequence

Douglas Santos

Eudes Costa

DOI

Multi-Factor Optimization and Failure-Tolerant Design of Cable-Driven Parallel Manipulators in Deep-Sea Robotics

IEEE Access | 2025

Asim Ghaffar

Muhammad Rahman

Victor Leiva

Carlos Martin-Barreiro

DOI

Isometries of 3-Dimensional Semi-Riemannian Lie Groups

Transformation Groups | 2025

A. Zeghib

DOI

Some Tridiagonal Matrix of the Repunit Sequence

Eudes Costa

Douglas Santos

DOI

Neural fractional differential equations

Applied Mathematical Modelling | 2025
DOI

Using GeoGebra as a tool for teaching the Padovan board and tiling

Renata Vieira

Francisco Alves

DOI

Qualitative properties of solutions to parabolic anisotropic equations: Part I - Expansion of positivity

Arxiv | 2025

S. Ciani

M. Savchenko

I.I. Skrypnik

DOI

Harnack-type estimates and extinction in finite time for a class of anisotropic porous medium type equations

Calculus of Variations and Partial Differential Equations | 2025

Simone Ciani

DOI

Fine Boundary Continuity for Degenerate Double-Phase Diffusion

Potential Analysis | 2025

S. Ciani

I.I. Skrypnik

DOI

Total time on test-based goodness-of-fit statistics for the reciprocal property in fatigue-life models

Lifetime Data Analysis | 2025

Marta Azevedo

Victor Leiva

DOI

Machine Learning-Based Ground Motion Modeling for Seismic Scenarios in Stable Continental Regions: Lisbon’s Case

Mediterranean Geosciences Union (MedGU) 2025 | 2025

Óscar Costa

Paula Reis

António Silva

Óscar. Costa

Clustering and Risk Analysis for Evaluating the Water Quality of a Hydrological Basin

Ana Pedra

DOI

On the topology of concurrent systems

Journal of Applied and Computational Topology | 2025

Catarina Faustino

Rodrigo Lopes

DOI

A model for slowing particles in random media

Discrete and Continuous Dynamical Systems | 2025

François Golse

Valeria Ricci

DOI

Revisiting fatigue-life distributions of Birnbaum-Saunders type: Mathematical characterization, simulation study, and applications

Applied Mathematical Modelling | 2025

Chang Dorea

Roberto Vila

Victor Leiva

Felipe Quintino

DOI

Geostatistical Models for Identifying Juvenile Fish Hotspots in Marine Conservation

Springer Proceedings in Mathematics & Statistics | 2025

Francisco Gonçalves

Daniela Silva

Inês Dias

Alexandra Silva

DOI

Isospectral reductions of non-negative matrices

Applied Mathematics and Computation | 2025

Alexandre Baraviera

Pedro Duarte

Longmei Shu

DOI

A note on the generalized bi-periodic Lucas-balancing numbers

Eudes Costa

Elen Spreafico

DOI

An Ethnomathematics Task Using Bisalhães Black Pottery

Helena Bogas

Mariluce Silva

Maria Nascimento

DOI

Evaluating the Impact of Dataset Size on Classical and Topological Feature Extraction for Gait Classification

Matheus Carvalho

Wolfram Erlhagen

Miguel Gago

Estela Bicho

DOI

Qualitative properties of solutions to parabolic anisotropic equations: Part II - The anisotropic Trudinger’s equation

Arxiv | 2025

S. Ciani

M.O. Savchenko

I.I. Skrypnik

DOI

On the Pascal simplex with hypercomplex entries

Carla Cruz

Helmuth R. Malonek

Graça Tomaz

DOI

Efficient algorithms for perturbed symmetrical Toeplitz-plus-Hankel systems

Skander Belhaj

DOI

Neurological Disease Classification Based on Gait Analysis Through Transformation-Based Multiple Linear Regression Normalization

Bárbara Araújo

Miguel Gago

Estela Bicho

DOI

The weighted GS-PIA algorithm for cubic B-spline curve interpolations and convergence analysis

Computational and Applied Mathematics | 2025

Zhongyun Liu

Jian Yang

Xiaofei Xu

Mengzhu Lin

DOI

Solar Radiation Forecasting: A Study Case in the Colombian Caribbean Region

Gloria Carrascal

Jairo Plaza

DOI

Distributed Generalized Linear Models: A Privacy-Preserving Approach

Computational Statistics | 2025

Daniel Tinoco

Carlos Baquero

DOI

A real-time intelligent system based on machine-learning methods for improving communication in sign language

IEEE Access | 2025

Victor Leiva

Muhammad Rahman

Muhammad Akbar

Mauricio Huerta

Muhammad Riaz

DOI

New Frontiers in Statistics and Data Science

Springer Nature Switzerland | 2025

Lígia Henriques-Rodrigues

Luís Machado

Susana Faria

Miguel de Carvalho

DOI

Pre‐Smoothing Methods for Transition Probabilities in Complex Non‐Markovian Multistate Models

International Statistical Review | 2025

Gustavo Soutinho

DOI

A Study of the Symmetry of the Tricomplex Repunit Sequence with Repunit Sequence

E.A. Costa

D.C. Santos

DOI

Distributed Formation Control of Double-Integrator Systems via Adaptive CBFs with Dynamic Safety Margins

Guettaf Wahid

Bouderah Brahim

DOI

On the continuity of solutions to anisotropic elliptic operators in the limiting case

Bulletin of the London Mathematical Society | 2025

S. Ciani

I.I. Skrypnik

DOI

A multi-risk criteria assessment methodology applied to the analysis of nitrogen dioxide concentrations in European capital cities

DOI

On t-Dimensional Gersenne Sequences and Their Symmetry Properties

Douglas Santos

Eudes Costa

DOI

The completeness problem on 3-dimensional non-unimodular Lie groups

Salah Chaib

Ana Cristina Ferreira

DOI

A Note on Hybrid Numbers with Generalized Hybrid k-Pell Numbers as Coefficients

Elen Spreafico

Eudes Costa

DOI

Global attractivity criteria for a discrete-time Hopfield neural network model with unbounded delays via singular M—matrices

Neurocomputing | 2025
DOI

The completeness problem on the pseudo-homothetic Lie group

Differential Geometry and Its Application | 2025

A. Zeghib

DOI