In 1919, Besicovitch constructed a compact set in the plane with Lebesgue measure 0 that contains a unit line segment pointing in every direction. Such objects are now called measure 0 Besicovitch sets (aka Kakeya sets). By replacing a measure zero Besicovitch set by its delta-thickening, one obtains a collectionContinue Reading
📅 martes 16 de junio — 11:00 📍 Aula A25, Facultad de Ciencias 👤 Conferenciante: Jorge Ruiz Cases (Universidad Autónoma de Madrid) 📖 Título: Gradual smoothing: strong hypercontractivity and logarithmic Sobolev inequalities 📄 Resumen: In this talk we study the possibility of a gradual improvement as time progresses of theContinue Reading
IMAG Functional Analysis Seminar Title: Two classical concepts under the Ky Fan metric By Willian Franca (Federal University of Juiz de Fora, Brazil) Abstract: In this talk, we study measurable functions modulo equality almost everywhere via the Ky Fan metric, a standard metric that encodes convergence in measure. Two themesContinue Reading
IMAG Functional Analysis Seminar Title: Characterizing Jordan maps through products at a fixed element By Jorge J. Garcés (UNED) Abstract: We shall present some new and old results on linear maps that (in some sense) behave as a Jordan homomorphism or a Jordan derivation locally. More generally, by paralleling theContinue Reading
Abstract Given an Anosov flow \(\phi\) on a 3-manifold \(M\), a periodic orbit \(\gamma\) and an integer \(m\), there is an operation, called Fried surgery, that allows to construct a new 3-manifold \(N\) endowed with an Anosov flow \(\psi\). This operation is a Dehn surgery of slope \(=m\) along theContinue Reading
Día: 7 de julio Hora: 10:00 a 11:15 Aula: Seminario 1 Conferenciante: Fulvia Mecatti Título: Multiple Frame Surveys: A Resilient Framework for Digital-Era Challenges abstractContinue Reading
