Defended Theses

• Numerical semigroups: a conjecture of Wilf and related topics
    Neeraj Kumar (July 2025)
    Manuel Delgado
    Claude Marion
• Dynamics of vector fields with univalued solutions
    Laura Rosales Ortiz (June 2025)
    Helena Reis
    Júlio Rebelo (Université Toulouse III)
• Regular transitions of physical measures in nonuniformly hyperbolic systems
    Odaudu Reuben Etubi (April 2025)
    José Ferreira Alves
• Topic Summation and Transformation formulas related with Spectral Functions
    Pedro Manuel Macedo Ribeiro (January 2025)
    Semyon Yakubovich
• Numerical methods for the robust reconstruction of elasticity
    Rafael Oliveira Henriques (January 2025)
    Sílvia Barbeiro
More Theses
Contributions to regularity theory in the calculus of variations
  Vincenzo Bianca (July 2024)
  José Miguel Urbano
Higgs Bundles and Geometric Structures
  Pedro Miguel Silva (April 2024)
  Peter Gothen
Some aspects of descent theory and applications
  Rui Rodrigues de Abreu Fernandes Prezado (January 2024)
  Maria Manuel Clementino
  Fernando Lucatelli Nunes
Comparability between different systems: star-shaped and convex transform orders
  Beatriz Ferreira Santos (December 2023)
  Paulo Eduardo Oliveira
  Idir Arab
On Lax Idempotent Monads in Topology
  Carlos Miguel Alves Fitas (December 2023)
  Maria Manuel Clementino
Coupling light propagation and diffusion in drug delivery: a mathematical approach
  Hugo Peña Gómez (December 2023)
  José Augusto Ferreira
  Luis Pinto (Coimbra)
Structure, algorithmics and dynamics of endomorphisms for certain classes of groups
  André da Cruz Carvalho (April 2023)
  Pedro V. Silva
A point-free study of z-embeddings, more general classes of localic maps, and uniform continuity
  Ana Belén Avilez García (April 2023)
  Jorge Picado
Analysis of equations of motion of inextensible strings and networks
  Ayk Telciyan (April 2023)
  Dmitry Vorotnikov
Sharp regularity for degenerate fully nonlinear equations
  David Joao Brandligt de Jesus (April 2023)
  José Miguel Urbano
  Edgard Pimentel
Schützenberger groups of minimal shift spaces
  Herman Goulet-Ouellet (December 2022)
  Alfredo Costa
  Jorge Almeida
A study of localic subspaces, separation, and variants of normality and their duals
  Igor Arrieta Torres (July 2022)
  Jorge Picado
  Javier Gutiérrez García (Bilbao)
Spline-based numerical methods for fractional diffusion problems
  Carla Filipa Bessa Morgado de Jesus (May 2022)
  Ercília Sousa
Symplectic keys and Demazure atoms in type C
  João Miguel Magalhães Santos (May 2022)
  Olga Azenhas
On completeness of Halphen systems and of pseudo-Riemannian geodesic flows
  Ahmed Elshafei (April 2022)
  Helena Reis
  Ana Cristina Ferreira
On lax orthogonal factorisation systems
  Leonardo Larizza (April 2022)
  Maria Manuel Clementino
Modeling Hessian-vector products in nonlinear optimization: new Hessian-free methods
  Lili Song (January 2022)
  Luis Nunes Vicente
  João Gouveia
Quantum Generalized Heisenberg Algebras
  Farrokh Razavinia (November 2021)
  Samuel Lopes
Stable and convergent numerical methods for nonlinear parabolic systems: application to sunspots
  Sara Joana Fino dos Santos Rodrigues de Carvalho (July 2021)
  José Augusto Ferreira
  Teresa Barata
Non-standard ranks of matrices
  António Pedro Neves Goucha (June 2021)
  João Gouveia
Finding dissimilar paths: formulations and variants
  Ali Moghanni Dehkharghani (May 2021)
  Marta Pascoal
Convolution-like structures, differential operators and diffusion processes
  Rúben Azevedo de Sousa (April 2021)
  Semyon Yakubovich
  Manuel Guerra (Lisboa)
On some Problems in the theory of Orthogonal Polynomials
  Dieudonne Mbouna (March 2021)
  José Carlos Petronilho
  Kenier Castillo
Coupling hyperbolic and parabolic IBVP: applications to drug delivery
  Daniela Sofia Domingues Jordão (December 2020)
  José Augusto Ferreira
Drug transport enhanced by temperature: mathematical analysis and numerical simulation
  Maria Elisa Barbosa Silveira (November 2020)
  José Augusto Ferreira
  Paula de Oliveira
The Hurwitz and Lipschitz Integers and Some Applications
  Nikolaos Tsopanidis (November 2020)
  António Machiavelo
Smoothing and Interpolation on the Essential Manifold
  Maria de Fátima Alves de Pina (June 2020)
  Fátima Silva Leite
A semidefinite approach to algebraic optimization
  Mina Saee Bostanabad (February 2020)
  João Gouveia
Extremal behaviour of chaotic dynamics
  Jorge Fernando Valentim Soares (January 2020)
  Jorge Milhazes de Freitas
On some norm equations over cyclotomic fields
  Peter Lombaers (January 2020)
  António Machiavelo
Entropy formulas for systems with singular sets
  David Boaventura Mesquita (December 2019)
  José Ferreira Alves
Generalised enriched categories: exponentiation and injectivity
  Willian Ribeiro Valencia da Silva (September 2019)
  Maria Manuel Clementino
Statistical Instability in Chaotic Dynamics
  Muhammad Ali Khan (March 2018)
  José Ferreira Alves
Sharp regularity for nonlinear evolution equations
  Anderson Feitoza Leitão Maia (March 2018)
  José Miguel Urbano
On the Profinite Topology on Groups and Tameness of Pseudovarieties of Groups
  Khadijeh Alibabaei (March 2018)
  Jorge Almeida
Forward-backward stochastic differential equations and applications
  Rui Manuel Tavares Pinto de Sá Pereira (January 2018)
  Evelina Shamarova
Pseudomonads and descent
  Fernando Lucatelli Nunes (January 2018)
  Maria Manuel Clementino
Descent theory of (T,V)-categories: global-descent and étale-descent Group
  Pier Giorgio Basile (September 2017)
  Maria Manuel Clementino
Representations of Generalized Quivers
  Artur Duarte Ferreira de Araújo (June 2017)
  Peter Gothen
On semisimple Hopf actions
  Deividi Ricardo Pansera (June 2017)
  Christian Edgar Lomp
Numerical analysis and simulation of discontinuous Galerkin methods for time-domain Maxwell’s equations
  Maryam Khaksar Ghalati (February 2017)
  Adérito Araújo
  Sílvia Barbeiro
Bifurcation of Projected Patterns
  Juliane Fonseca de Oliveira (January 2017)
  Isabel Labouriau
  Sofia Castro Gothen
The Quotient Module, Coring Depth and Factorisation Algebras
  Alberto Hernández Alvarado (September 2016)
  Lars Kadison
Compound Poisson integer-valued GARCH processes
  Filipa Alexandra Cardoso da Silva (July 2016)
  Nazaré Mendes Lopes
  Esmeralda Gonçalves
Numerical Ranges of Linear Pencils
  Fatemeh Esmaeili (July 2016)
  Natália Bebiano
The word problem and some reducibility properties for pseudo-varieties of the form DRH
  Célia Mariana Rabaçal Borlido (April 2016)
  Jorge Almeida
Hitchin Pairs for Indefinite Unitary Group
  Azizeh Nozad (February 2016)
  Peter Gothen
Trust-Region Methods without using Derivatives: Worst Case Complexity and the Non-smooth Case
  Diogo Júdice (December 2015)
  Luis Nunes Vicente
The Robust Shortest Path Problem with Discrete Data
  Marisa Cristina Marquês Neto de Matos Resende (July 2015)
  Marta Pascoal
Aspects of Non-commutative Differential Geometry
  Serkan Karacuha (July 2015)
  Christian Edgar Lomp
Forest Algebras, $Omega$-Algebras and a Canonical Form for Certain Relatively Free $Omega$-Algebras
  Saeid Alirezazadeh (May 2015)
  Jorge Almeida
Weighted Sums of Associated Random Variables
  Tonguç Cagin (February 2015)
  Paulo Eduardo Oliveira
Reaching the Minimum Ideal in a Finite Semigroup
  Nasim Karimi (February 2015)
  Jorge Almeida
  Pedro Silva
Homotopy Groups of the Moduli Space of Higgs Bundles
  Ronald Alberto Zúñiga Rojas (February 2015)
  Peter Gothen
Non-Fickian Models for Biodegradable Drug Eluting Stents
  Jahed Naghipoor (January 2015)
  Paula de Oliveira
  José Augusto Ferreira
Worst Case Complexity of Direct Search under Convexity
  Mahdi Dodangeh (November 2014)
  Luis Nunes Vicente
Diffusion, Viscoelasticity and Erosion: Analytical Study and Medical Applications
  Ebrahim Azhdari (October 2014)
  Paula de Oliveira
  José Augusto Ferreira
The Depth of a Hopf Algebra in its Smash Product
  Christopher Young (September 2014)
  Lars Kadison
Mathematical Economics Sunspot Equilibrium and International Trade with Tariffs
  Mohammad Choubdar Soltan Ahmadi (September 2014)
  Alberto Adrego Pinto
The Cerny Conjecture and other Synchronization Problems
  Ângela Filipa Pereira Cardoso (July 2014)
  Jorge Almeida
Asymptotic Limits for the Doubly Nonlinear Equation
  María do Rosario Astudillo Rojas (March 2014)
  José Miguel Urbano
An Analogue of the Robinson-Schensted-Knuth Correspondence, Growth Diagrams, and Non-symmetric Cauchy Kernels
  Aram Emami (February 2014)
  Olga Azenhas
Recent Developments in Non-Fickian Diffusion: A New Look at Viscoelastic Materials
  Elias Alfredo Gudiño Rojas (February 2014)
  Paula de Oliveira
  José Augusto Ferrreira
Parabolic Partial Differential Equations: Superconvergence Estimates and Applications
  Luís Miguel Dias Pinto (January 2014)
  José Augusto Ferreira
Higher Structures: Gerbes and Nijenhuis Forms
  Mohammad Jawad Azimi (December 2013)
  Joana Margarida Nunes da Costa
  Camille Laurent-Gengoux
On the Numerical Analysis of Non-Fickian Flows in Porous Media
  Somaye Gholami Bardeji (October 2013)
  José Augusto Ferreira
  Sílvia Alves Barbeiro
Gibbs-Markov-Young Structure with (Stretched) Exponential Recurrence Times for Partially Hyperbolic Attractors
  Li Xin (October 2013)
  José Ferreira Alves
Injective Hulls of Simple Modules over some Noetherian Rings
  Osman Can Hatipoglu (October 2013)
  Christian Edgar Lomp
Statistical Properties for Systems with Weak Invariant Manifolds
  Davide Manuel Santos Azevedo (September 2013)
  José Ferreira Alves
A Class of Equivalent Problems Related to the Riemann Hypothesis
  Sadeq Nazardonyavi (June 2013)
  Semyon Yakubovich
Extreme Values and Recurrence for Deterministic and Stochastic Dynamics
  Hale Aytaç (June 2013)
  Jorge Milhazes de Freitas
  Sandro Vaienti (Université du Sud Toulon Var)
Inexactness in Decomposition Methods for MINLP
  Min Li (March 2013)
  Luis Nunes Vicente
Contributions to Variational Image Segmentation
  Juan Carlos Moreno Briceño (March 2013)
  Isabel Maria Narra de Figueiredo
Mapping Spaces of Gray-Categories
  Björn Gohla (March 2013)
  Peter Gothen
  João Nuno Gonçalves Faria Martins (Universidade Nova de Lisboa)
Smoothing and Worst Case Complexity for Direct-Search Methods in Non-Smooth Optimization
  Rohollah Garmanjani (December 2012)
  Luis Nunes Vicente
Statistical Stability for Rovella Maps and Lorenz-like Flows
  Mohammad Soufi Neyestani (April 2012)
  José Ferreira Alves
Rationality of the Zeta Function
  Mário Alexandre Duarte Magalhães (April 2012)
  Maria Pires de Carvalho
Ergodic and Geometric Theory of Conservative and Hamiltonian Flows
  Célia Manuela Fernandes Ferreira (February 2012)
  Jorge Rocha
  Mário Bessa (Universidade da Beira Interior)
Regularity for the Singular Trudinger's Equation
  Rojbin Ozlem Laleoglu (February 2012)
  José Miguel Urbano

Theses in Preparation

• Anomalous diffusion: new perspectives at the intersection of analytical and numerical methods
    Ortenilton dos Santos Filho
    Edgard Pimentel
    Ercília Sousa
• Lagrangians in Higgs bundle moduli spaces
    Rodrigo Alves dos Santos Pereira
    Peter Gothen
    André Oliveira
• Unbalanced Optimal Transport, Cross Diffusion and Spatial Ecology
    Rodrigo Iñigo Vargas
    Dmitry Vorotnikov
• Methods for Learning Decomposable Context-Specific Bayesian Networks
    João Pedrosa Marcelino
    João Gouveia
    Eliana Gélvez
• A multivariate approach to extreme dynamics
    Alessio Corveddu
    Jorge Milhazes de Freitas
    Ana Cristina Freitas
More Theses
Contact and Jacobi geometry on b-manifolds
  Vanessa Andreia da Silva Oliveira
  Inês Cruz
  Alfonso Tortorella
Non-Commutative Arithmetic, Hurwitz Integers and Diophantine Equations with Restrictions
  Adriana Filipa Carvalho Cardoso
  António Machiavelo
Extensions of Higgs bundles and the nilpotent cone
  Gabriel da Silva Martinho
  Peter Gothen
  André Oliveira
Numerical study of a multi-layered viscoelastic mathematical model
  Afonso Frias Vazão do Nascimento Costa
  Sílvia Barbeiro
Structure Preservation Methods in Deep Learning Architectures
  Gonçalo Inocêncio Oliveira
  Adérito Araújo
Discontinuous Galerkin method for curved boundary domains
  Milene Francisco dos Santos
  Adérito Araújo
Quasi-integrability of Complex ODE's
  Hamza Bakhouch
  Helena Reis
  Adjaratou Arame Diaw
Strong Poisson Dixmier-Moeglin Equivalence
  Nirina Albert Razafimandimby
  Samuel Lopes
Quiver bundles and the Moduli space of Higgs bundles
  Juan Sebastian Numpaque Roa
  Peter Gothen
Non-Fickian Keller-Segel models: analytical and numerical study
  Augusto Manuel de Oliveira Fernandes
  José Augusto Ferreira
  Paula Oliveira
Graphs associated to reduced words in classical Weyl groups
  Diogo André Cardoso Conde Soares
  Ricardo Mamede
  José Luís Santos
Asymptoptic invariants of Eulerian ideals
  Gonçalo Nuno Mota Varejão
  Jorge Neves
From the decay of correlations to the recurrence times in dynamical systems with contractive directions
  João Manuel Silva Matias
  José Ferreira Alves
Normal forms for Lie groupoids and Lie algebroids
  Lennart Obster
  João Nuno Mestre
Deformations of Lie groupoids/algebroids and differentiable stacks
  Sebastián Camilo Daza Alfonso
  João Nuno Mestre
Contributions to the theory of metric mean dimension
  Gustavo Sperotto Pessil
  Maria Pires de Carvalho
  Paulo Varandas
Parametrization of anisotropic filters in medical imaging
  Diogo de Castro Lobo
  Sílvia Barbeiro
On Some Problems in Orthogonal Polynomials and Special Functions
  Guillermo Gordillo Núñez
  Kenier Castillo
Coupled Cell Hypernetworks and Synchrony
  Yi Yu
  Ana Paula Dias
Arithmetic in Non-Commutative Rings, Diophantine Problems, and Factorization
  António Sérgio Carvalho Leite
  António Machiavelo
Topological Invariants and their Applications in Geometry
  Pedro Pessoa e Silva
  Ivan Yudin
  João Nuno Mestre
Physics-Informed Neural Networks for Air Pollution Monitoring
  Diogo Miguel Cotrim Nunes
  Gonçalo Pena
  José Augusto Ferreira, Lino José Forte Marques
Statistical properties of random dynamical systems
  Lucas Amorim Vilas Boas
  Jorge Milhazes de Freitas
  Sandro Vaienti, Ana Cristina Freitas
Measure and randomness in locales
  Raquel Viegas Bernardes
  Jorge Picado
Some analytic and algebraic problems in the theory of orthogonal polynomials
  Alexandre Suzuki
  Kenier Castillo

Research and Events