output
20032026
most citedUnderstanding viscoelastic flow instabilities: Oldroyd-B and beyond

94 citations

217 papers

math.DS2026

Random chemostats with competition and different kinetics to investigate the growth of the gut microbiome

Javier López-de-la-Cruz, Felipe Rivero, Carlos R. Takaessu

We investigate some chemostat models incorporating wall growth, competition, random fluctuations on the dilution rate, and different consumption functions (Monod and Haldane). We a…

math.CO2026

Lower Bounds for the Pfaffian Number of Graphs

Enrique Junchaya, Alberto Alexandre Assis Miranda, Cláudio L. Lucchesi

The number of perfect matchings of a -pfaffian graph can be counted by computing a linear combination of the pfaffians of matrices. The pfaffian number of a graph is the…

eess.SY2026

Bayesian Model-based Generation of Synthetic Unbalanced Distribution Networks Incorporating Reliability Indices

Henrique O. Caetano, Rahul K. Gupta, Cristhian G. da R. de Oliveira +2

Real-world power distribution data are often inaccessible due to privacy and security concerns, highlighting the need for tools for generating realistic synthetic networks. Existin…

cs.LG2026

Modeling Programming Skills with Source Code Embeddings for Context-aware Exercise Recommendation

Carlos Eduardo P. Silva, João Pedro M. Sena, Julio C. S. Reis +2

In this paper, we propose a context-aware recommender system that models students' programming skills using embeddings of the source code they submit throughout a course. These emb…

math.AP2025★ 5 cited

Robustness of dynamically gradient multivalued dynamical systems

Rubén Caballero, Alexandre N. Carvalho, Pedro Marín-Rubio +1

In this paper we study the robustness of dynamically gradient multivalued semiflows. As an application, we describe the dynamical properties of a family of Chafee-Infante problems…

math.AG2025

Bourbaki degree of pairs of projective surfaces

Felipe Monteiro

The present work focuses on studying the logarithmic tangent sheaf associated with sequences of two homogeneous polynomials in four variables. We introduce two positive discrete in…

math.GT2025

The Splitting of Generalisations of the Fadell-Neuwirth short exact sequence

Daciberg Lima Gonçalves, John Guaschi, Carolina de Miranda e Pereiro

We study some generalisations to mixed braid groups of the Fadell-Neuwirth short exact sequence and the possible splitting of this sequence. In certain cases, we determine conditio…

physics.soc-ph2025

Efficient Gillespie algorithms for spreading phenomena in large and heterogeneous higher-order networks

Hugo P. Maia, Wesley Cota, Yamir Moreno +1

Higher-order interactions, where groups of nodes interact collectively rather than pairwisely, are central to many complex systems, from neural and ecological networks to social co…

math.KT2025

Happel's question, Han's conjecture and -Hochschild (co)homology

Claude Cibils, Marcelo Lanzilotta, Eduardo N. Marcos +1

We introduce the -Hochschild (co)homology of a finite dimensional associative algebra by means of the higher Auslander-Reiten translate of O. Iyama. We show that the global…

quant-ph2025★ 1 cited

Lie groups for quantum complexity and barren plateau theory

P. A. S. de Alcântara, Gabriel Audi, Leandro Morais

Advances in quantum computing over the last two decades have required sophisticated mathematical frameworks to deepen the understanding of quantum algorithms. In this review, we in…

cs.SE2025★ 1 cited

Making a Pipeline Production-Ready: Challenges and Lessons Learned in the Healthcare Domain

Daniel Angelo Esteves Lawand, Lucas Quaresma Medina Lam, Roberto Oliveira Bolgheroni +3

Deploying a Machine Learning (ML) training pipeline into production requires good software engineering practices. Unfortunately, the typical data science workflow often leads to co…

math.AG2025

Polynomial stability conditions for vector bundles: Positivity, equivariance and blow-ups

Rémi Delloque, Achim Napame, Carlo Scarpa +1

We introduce the notion of P-critical connections for hermitian holomorphic vector bundles over compact balanced manifolds: integrable hermitian connections whose curvature solves…

math.DG2025

A note on Chern-Weil classes of Cartan connections

Luca Accornero, Mateus M. de Melo, Ivan Struchiner

We present a construction of Chern-Weil characteristic classes for pairs Cartan geometries sharing the same underlying data. Given any model Cartan geometry with underlying…

math.AP2025

Ground states of the planar nonlinear Schrödinger--Newton system with a point interaction

Gustavo de Paula Ramos

We establish sufficient conditions for the existence of ground states of the following normalized nonlinear Schrödinger--Newton system with a point interaction: \[ \begin{cases} -…

math.AP2025★ 1 cited

Global hypoellipticity on time-periodic Gelfand-Shilov spaces via non-discrete Fourier analysis

André Pedroso Kowacs, Pedro Meyer Tokoro

In this paper, we provide a characterization of the time-periodic Gelfand-Shilov spaces, as introduced by F. de Ávila Silva and M. Cappiello [J. Funct. Anal., 282(9):29, 2022], thr…

math.PR2025

Nonparametric estimation of the jump rate in mean field interacting systems of neurons

Aline Duarte, Kadmo Laxa, Eva Löcherbach +1

We consider finite systems of interacting neurons described by non-linear Hawkes processes in a mean field frame. Neurons are described by their membrane potential. They spike…

cs.LG2025★ 2 cited

Minimizing Risk Through Minimizing Model-Data Interaction: A Protocol For Relying on Proxy Tasks When Designing Child Sexual Abuse Imagery Detection Models

Thamiris Coelho, Leo S. F. Ribeiro, João Macedo +2

The distribution of child sexual abuse imagery (CSAI) is an ever-growing concern of our modern world; children who suffered from this heinous crime are revictimized, and the growin…

cs.AI2025★ 3 cited

Exploring a Large Language Model for Transforming Taxonomic Data into OWL: Lessons Learned and Implications for Ontology Development

Filipi Miranda Soares, Antonio Mauro Saraiva, Luís Ferreira Pires +6

Managing scientific names in ontologies that represent species taxonomies is challenging due to the ever-evolving nature of these taxonomies. Manually maintaining these names becom…

cs.CV2025★ 3 cited

Neglected Risks: The Disturbing Reality of Children's Images in Datasets and the Urgent Call for Accountability

Carlos Caetano, Gabriel O. dos Santos, Caio Petrucci +6

Including children's images in datasets has raised ethical concerns, particularly regarding privacy, consent, data protection, and accountability. These datasets, often built by sc…

math.DG2025

Parallel differential forms of codegree two, and three-forms in dimension six

Andrzej Derdzinski, Paolo Piccione, Ivo Terek

For a differential form on a manifold, having constant components in suitable local coordinates trivially implies being parallel relative to a torsion-free connection, and the conv…

math.GT2025★ 1 cited

The R-property for braid groups over orientable surfaces

Karel Dekimpe, Daciberg Lima Gonçalves, Oscar Ocampo

Let be an orientable surface of genus and of finite type without boundary (i.e. an orientable closed surface with a finite number of points removed). In this pape…

math.AG2025

Lipschitz Geometry of Mixed Pham-Brieskorn Singularities

Inácio Rabelo

We give conditions for topological and bi-Lipschitz equivalences within a class of mixed singularities of Pham-Brieskorn type. As a consequence, we construct infinite families that…

math.DS2024

Anisotropic spaces for the bilateral shift

Mateus Marra, Daniel Smania

Given two Hölder potentials and for the unilateral shift, we define anisotropic Banach spaces of distributions on the bilateral shift space with a finite alphabet. On t…

math.AP2024

Well-Posedness and Regularity of the Heat Equation with Robin Boundary Conditions in the Two-Dimensional Wedge

Marco Bravin, Manuel V. Gnann, Hans Knüpfer +3

Well-posedness and higher regularity of the heat equation with Robin boundary conditions in an unbounded two-dimensional wedge is established in an -setting of monomially we…