Publications
Publicações

Publications

Imputation of the Response Variable in Survival Analysis with Interval-Censored Data

Gustavo Soutinho

DOI

The Mandelbrot Set for a Coquaternionic Family of Quadratics

Ricardo Severino

DOI

Pascal Trapezoids as Wigner Numbers and Some Combinatorial Properties

Isabel Cação

Helmuth Malonek

Graça Tomaz

DOI

On Generalized Inverses of Matrices Associated with Certain Graph Classes

Mediterranean Journal of Mathematics | 2026

Faustino Maciala

DOI

When is a product of EP elements again EP?

Linear and Multilinear Algebra | 2026

Xavier Mary

DOI

Beyond Kaplan-Meier: A Comprehensive R Package for Interval-Censored Survival Analysis Using Turnbull’s Approach

Marta Azevedo

Gustavo Soutinho

DOI

Symbolic and Numerical Computation of Coquaternionic Functions in Mathematica

Ricardo Severino

DOI

A BiLSTM Approach to Outfit Compatibility and Image Similarity

Lecture Notes in Business Information Processing | 2026

Luís Silva

Francisco Oliveira

Ivan Gomes

João Oliveira

DOI

Well–posedness and asymptotics of a fractional generalization of a SIS compartment model

Communications in Nonlinear Science and Numerical Simulation | 2026

Rui Ferreira

DOI

Molecular hydrogen and kidney diseases: a scoping review based on scientometry and data analytics

Medical Gas Research | 2026

Johanna Viana

Victor Leiva

DOI

Limits of sequences of volume preserving homeomorphisms in W1,, for 0 < p < 1

Bulletin des Sciences Mathématiques | 2026
DOI

Reaction–Diffusion Systems from Kinetic Models for Bacterial Communities on a Leaf Surface

Journal of Nonlinear Science | 2026

Marzia Bisi

Ana Soares

Romina Travaglini

DOI

Pattern Formation of Bulk-Surface Reaction-Diffusion Systems in a Ball

SIAM Journal on Applied Mathematics | 2026

Edgardo Villar-Sepúlveda

Alan Champneys

Anotida Madzvamuse

DOI

Generalized inverses of special matrices partitioned into blocks

Rendiconti del Circolo Matematico di Palermo Series 2 | 2026

Regina De Almeida

Paula Catarino

M. Vicente

José Vitória

DOI

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

Said Hamoun

Youssef Rami

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

Profiling the geoscience community: exploring patterns of science communication and public engagement

Journal of Science Communication | 2025

Joana Rodrigues

Elsa Silva

Diamantino Pereira

DOI

Isospectral reductions of non-negative matrices

Applied Mathematics and Computation | 2025

Alexandre Baraviera

Pedro Duarte

Longmei Shu

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

Confidence Intervals for the Reliability of Dependent Systems: Integrating Frailty Models and Copula-Based Methods

Computer Modeling in Engineering &amp; Sciences | 2025

Osnamir Bru-Cordero

Victor Leiva

Mario Jaramillo-Elorza

DOI

Lagrange multipliers and characteristic functions

Journal of Differential Equations | 2025
DOI

Bivariate extended skew-elliptical Heckman models: mathematical characterization and an application in economic sciences

Computational and Applied Mathematics | 2025

Roberto Vila

Helton Saulo

Carolina Marchant

Victor Leiva

DOI

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

Douglas Santos

Eudes Costa

DOI

Interpretação Combinatória dos termos de algumas Sequências Recorrentes via Tabuleiro e Ladrilhamentos

Francisco Alves

Renata Vieira

DOI

An evolutionary vector-valued variational inequality and Lagrange multiplier

Journal of Mathematical Analysis and Applications | 2025
DOI

Neural fractional differential equations

Applied Mathematical Modelling | 2025
DOI

Some Tridiagonal Matrix of the Repunit Sequence

Eudes Costa

Douglas Santos

DOI

Numerical Methods: Artifacts in Teaching in a Mathematics Degree

Edson Cruz

Maria Nascimento

DOI

Fibering polarizations and Mabuchi rays on symmetric spaces of compact type

Thomas Baier

Joachim Hilgert

José Mourão

João Nunes

DOI

Enhanced spatial clustering for crime analysis: Novel advances in Ward-like and SKATER algorithms for Brazilian public security

IEEE Access | 2025

Raydonal Ospina

Alexsandra Lima

Cristiano Ferraz

Carlos Martin-Barreiro

Victor Leiva

DOI

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

Renata Vieira

Francisco Alves

DOI

An Ethnomathematics Task Using Bisalhães Black Pottery

Helena Bogas

Mariluce Silva

Maria Nascimento

DOI

Mathematical knowledge for teaching of future primary school teachers in numbers and operations: a systematic review

A. Joaquim

A. Morais

A.P. Aires

DOI

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

Elen Spreafico

Eudes Costa

DOI

Concept Map as an Assessment Item

Maria Nascimento

Eva Morais

DOI

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

E.A. Costa

D.C. Santos

DOI

Positive topological entropy for semi-Riemannian geodesic flows

Proceedings of the American Mathematical Society | 2025

Mário Bessa

João Lopes Dias

Pedro Matias

DOI

On tridimensional Lucas-balancing numbers and some properties

Notes on Number Theory and Discrete Mathematics | 2025

M. Otero-Espinar

DOI

A Two‐Stage Training Method for Modeling Constrained Systems With Neural Networks

M. Fernanda P. Costa

DOI

A Brief Study on the k-Dimensional Repunit Sequence

Eudes Costa

Francisco Alves

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

The First Study of Mersenne--Leonardo Sequence

Eudes Costa

DOI

On t-Dimensional Gersenne Sequences and Their Symmetry Properties

Douglas Santos

Eudes Costa

DOI

Bidimensional balancing, Lucas-balancing, cobalancing and Lucas-cobalancing numbers via the determinant of a tridiagonal matrix

Indian Journal of Pure and Applied Mathematics | 2025

M. Otero-Espinar

DOI

PEDAGOGICAL CONTENT KNOWLEDGE FOR TEACHING NUMBERS AND OPERATIONS: A STUDY WITH PROSPECTIVE TEACHERS,CONHECIMENTO PEDAGÓGICO DO CONTEÚDO PARA O ENSINO DE NÚMEROS E OPERAÇÕES: UM ESTUDO COM FUTUROS PROFESSORES,CONOCIMIENTO PEDAGÓGICO DEL CONTENI

A. Joaquim

M. Nascimento

A.P. Aires

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

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

Eudes Costa

Elen Spreafico

DOI

Visualization and properties of boards and tiles: The case of the Padovan or Cordonier sequence

Francisco Alves

Renata Vieira

Milena Mangueira

DOI