Chicho y Juana tango Bajofundo) Mantova TF 2008
Frumboli y Sepulveda bailan Borges y Paraguay de Bajofundo Tango Club en el Mantova tango festival 2008
From playlist Tango
'Hoy' - Sebastian Arce & Mariana Montes, TangON 09
Sebastian Arce & Mariana Montes - 'Hoy', TangON, Antalya, on 17th May 2009
From playlist Tango
Lie Groups and Lie Algebras: Lesson 21 - Factor Groups (OPTIONAL)
Lie Groups and Lie Algebras: Lesson 21 - Factor Groups (OPTIONAL) This is an elementary group theory review lesson focusing on the definition of a coset, the nature of invariant/normal subgroups and the construction of factor groups. This material will be important when we discuss, eventu
From playlist Lie Groups and Lie Algebras
Visual Group Thoery, Lecture 5.5: p-groups
Visual Group Thoery, Lecture 5.5: p-groups Before we can introduce the Sylow theorems, we need to develop some theory about groups of prime power order, which we call p-groups. In this lecture, we show that the number of fixed point of a p-group acting on a set S is congruent modulo p to
From playlist Visual Group Theory
Stefaan Vaes - Classification of regular subalgebras of the hyperfinite II1 factor
I present a joint work with Sorin Popa and Dimitri Shlyakhtenko. We prove that under a natural condition, the regular von Neumann subalgebras B of the hyperfinite II1 factor R are completely classified (up to conjugacy by an automorphism of R) by the associated discrete measured groupoid.
From playlist Groupes, géométrie et analyse : conférence en l'honneur des 60 ans d'Alain Valette
Benjamin Anderson-Sackaney - Tracial and G-invariant States on Quantum Groups
For a discrete group G, the tracial states on its reduced group $C^*$-algebra $C^∗_r (G)$ are exactly the conjugation invariant states. This makes the traces on $C^∗_r (G)$ amenable to group dynamical techniques. In the setting of a discrete quantum group ${\mathbb G}$, there is a quantum
From playlist Annual meeting “Arbre de Noël du GDR Géométrie non-commutative”
A New Cubulation Theorem for Hyperbolic Groups- Daniel Groves
Daniel Groves University of Illinois, Chicago October 27, 2015 https://www.math.ias.edu/seminars/abstract?event=83384 We prove that if a hyperbolic group G acts cocompactly on a CAT(0) cube complexes and the cell stabilizers are quasiconvex and virtually special, then G is virtually spec
From playlist Geometric Structures on 3-manifolds
Visual Group Theory, Lecture 3.2: Cosets
Visual Group Theory, Lecture 3.2: Cosets The "regularity" property of Cayley diagrams implies that identical copies of the fragment corresponding to a subgroup appear throughout the rest of the diagram. These subsets are called cosets. In this lecture, we formalize this algebraically and
From playlist Visual Group Theory
Lie Groups and Lie Algebras: Lesson 39 - The Universal Covering Group
Lie Groups and Lie Algebras: Lesson 39 - The Universal Covering Group We are finally in position to understand the nature of the Universal Covering Group and its connection to all the Lie groups which share a single Lie algebra. This is a critical lecture! In this lecture we simply state
From playlist Lie Groups and Lie Algebras
Stefaan Vaes: "Outer actions of amenable groups on von Neumann algebras"
Actions of Tensor Categories on C*-algebras 2021 Mini Course: "Outer actions of amenable groups on von Neumann algebras" Stefaan Vaes - KU Leuven Abstract: I will give a survey lecture on the classification of outer actions of amenable groups on von Neumann algebras with the main focus b
From playlist Actions of Tensor Categories on C*-algebras 2021
In this video, we introduce and discuss spectra (in the sense of homotopy theory). We explain how they generalise abelian groups. Feel free to post comments and questions at our public forum at https://www.uni-muenster.de/TopologyQA/index.php?qa=tc-lecture Homepage with further informa
From playlist Higher Algebra
Stable Homotopy Seminar, 10: Fiber and Cofiber Sequences of Spectra
(Note: some internet issues forced me to do the second half of this on the blackboard, so the quality's a bit worse.) We generalize the notion of fiber & cofiber sequence to arbitrary pointed model categories, using the notion of homotopy limit and colimit defined last time. Cofiber sequ
From playlist Stable Homotopy Seminar