output
19992026
most citedThe Magnus expansion and some of its applications

1.2k citations

351 papers

cs.LO2026

Algorithmic Unverifiability of Safety for Fixed and Recursively Self-Improving Systems

Jose Pascual Gumbau Mezquita

We establish mathematical limits of algorithmic safety verification for Turing-complete self-modifying systems, the class in which recursive self-improvement takes place, both for…

stat.ME2026★ 1 cited

Biarchetype analysis for univariate functional data. An application to macroeconomic financial time series

Aleix Alcacer, Rafael Benitez, Vicente J. Bolos +1

We introduce biarchetype analysis for the first time in the context of univariate functional data. This unsupervised methodology extends archetype analysis by simultaneously identi…

stat.ME2026★ 1 cited

Archetypal analysis of European 10-year government bond yields with multidimensional scaling of two-mode three-way asymmetric dissimilarities

Aleix Alcacer, Rafael Benitez, Vicente J. Bolos +1

A recent methodology for extracting archetypal profiles from three-way asymmetric proximity data is applied to a dataset comprising 23 x 23 x 3 two-mode, three-way asymmetric dissi…

math.AT2026

Weak split extensions of topological Abelian groups

María V. Ferrer, Salvador Hernández-Muñoz, Luis Javier Hernández-Paricio

In the category of topological Abelian groups, we consider the usual notion of an extension of by , together with the notion of a weakly split extension,…

cs.DC2026★ 4 cited

Leveraging Teaching on Demand: Approaching HPC to Undergrads

S. Catalán, R. Carratalá-Sáez, S. Iserte

High Performance Computing (HPC) is a highly demanded discipline in companies and institutions. However, as students and also afterwards as professors, we observed a lack of HPC re…

cs.DB2026★ 11 cited

Complete Integration of Team Project-based Learning into a Database Syllabus

S. Iserte, V. R. Tomas, M. Pérez +3

Team project-based learning (TPBL) combines two learning techniques: project-based learning (PBL) and teamwork. This combination leverages the learning outcomes of both methods and…