Algebraic groups | Compactification (mathematics)
In algebraic group theory, a wonderful compactification of a variety acted on by an algebraic group is a -equivariant compactification such that the closure of each orbit is smooth. Corrado de Concini and Claudio Procesi constructed a wonderful compactification of any symmetric variety given by a quotient of an algebraic group by the subgroup fixed by some involution of over the complex numbers, sometimes called the De Concini–Procesi compactification, and Elisabetta Strickland generalized this construction to arbitrary characteristic. In particular, by writing a group itself as a symmetric homogeneous space, (modulo the diagonal subgroup), this gives a wonderful compactification of the group itself. (Wikipedia).
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From playlist Intro to Complex Numbers
AWESOME Physics demonstrations. The collapsing can.
This is a fun introduction to atmospheric pressure.
From playlist PRESSURE
Graspable Math: Factoring Demo
Even when it comes to factoring, #GraspableMath comes in quite handy.! Shown here within the context of rational expressions: https://gmacts.com/teacher/activity-bank/public/634824a74b276e00142d3bfd
From playlist Graspable Math Ideas and How-To's
From playlist Graspable Math Ideas and How-To's
Awesome Turn on lighter (slow motion)!!!
Amazing Turn on lighter in slow motion!!!
From playlist THERMODYNAMICS
Ana Balibanu: The partial compactification of the universal centralizer
Abstract: Let G be a semisimple algebraic group of adjoint type. The universal centralizer is the family of centralizers in G of regular elements in Lie(G), parametrized by their conjugacy classes. It has a natural symplectic structure, obtained by Hamiltonian reduction from the cotangent
From playlist Algebra
Draw Perfect Freehand Circles!
Super simple idea that allows you to draw a perfect freehand circle. Use it to win bets, or just impress your friends!
From playlist How to videos!
Thibaut Delcroix : Kähler-Einstein metrics on group compactifications
Find this video and other talks given by worldwide mathematicians on CIRM's Audiovisual Mathematics Library: http://library.cirm-math.fr. And discover all its functionalities: - Chapter markers and keywords to watch the parts of your choice in the video - Videos enriched with abstracts, b
From playlist Algebraic and Complex Geometry
Parahoric Torsors and Degeneration of Moduli Spaces by Vikraman Balaji
Program Quantum Fields, Geometry and Representation Theory 2021 (ONLINE) ORGANIZERS: Aswin Balasubramanian (Rutgers University, USA), Indranil Biswas (TIFR, india), Jacques Distler (The University of Texas at Austin, USA), Chris Elliott (University of Massachusetts, USA) and Pranav Pandi
From playlist Quantum Fields, Geometry and Representation Theory 2021 (ONLINE)
Algebraic curves, tropical geometry, and moduli - Sam Payne
Sam Payne Yale University February 11, 2015 Tropical geometry gives a new approach to understanding old questions about algebraic curves and their moduli spaces, synthesizing techniques that range from Berkovich spaces to elementary combinatorics. I will discuss an outline of this method,
From playlist Mathematics
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Joint IAS/Princeton/Montreal/Paris/Tel-Aviv Symplectic Geometry Topic: Action filtrations associated to smooth categorical compactifications Speaker: Laurent Côté Date: July 09, 2021 There is notion of a smooth categorical compactification of dg/A-infinity categories: for example, a smoo
From playlist Mathematics
Mirko Mauri : The essential skeletons of pairs and the geometric P=W conjecture
The geometric P=W conjecture is a conjectural description of the asymptotic behavior of a celebrated correspondence in non-abelian Hodge theory. In particular, it is expected that the dual boundary complex of the compactification of character varieties is a sphere. In a joint work with Enr
From playlist Algebraic and Complex Geometry
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SUSY for Strings and Branes, Part 2 Katrin Becker Texas A&M University July 20, 2010
From playlist PiTP 2010
Link: https://www.geogebra.org/m/uj4qqmkZ
From playlist Geometry: Dynamic Interactives!
Moduli of degree 4 K3 surfaces revisited - Radu Laza
Radu Laza Stony Brook University; von Neumann Fellow, School of Mathematics February 3, 2015 For low degree K3 surfaces there are several way of constructing and compactifying the moduli space (via period maps, via GIT, or via KSBA). In the case of degree 2 K3 surface, the relationship be
From playlist Mathematics
Maria Angelica Cueto - "Implicitization of surfaces via geometric tropicalization"
Implicitization of surfaces via geometric tropicalization - Research lecture at the Worldwide Center of Mathematics.
From playlist Center of Math Research: the Worldwide Lecture Seminar Series
AMAZING physics demonstrations. Oscillation, collision and conservation of momentum (science)
Physics (la physique)
From playlist MECHANICS
Counting and Constraining Gravitational Scattering matrices (Lecture 1) by Shiraz Minwalla
RECENT DEVELOPMENTS IN S-MATRIX THEORY (ONLINE) ORGANIZERS: Alok Laddha, Song He and Yu-tin Huang DATE: 20 July 2020 to 31 July 2020 VENUE:Online Due to the ongoing COVID-19 pandemic, the original program has been canceled. However, the meeting will be conducted through online lectures
From playlist Recent Developments in S-matrix Theory (Online)