Quadratic complexes, singular varieties and moduli.
When are right-angled Artin groups similar? Montse Casals (IKERBASQUE-Basque Foundation for Science and University of the Basque Country)
Spin foam models are a "state-sum" approach to loop quantum gravity which aims to facilitate the description of its dynamics, an open problem of the parent framework.
The so-called Hopf-zero singularity consists in a vector field in $R^3$ having the origin as a critical point, with a zero eigenvalue and a pair of conjugate purely imaginary eigenvalues.
The pseudowords in a finitely generated free profinite aperiodic semigroup are faithfully represented by labeled linear orders induced by the factorizations of the pseudowords.