In geometry, a point group in four dimensions is an isometry group in four dimensions that leaves the origin fixed, or correspondingly, an isometry group of a 3-sphere. (Wikipedia).
Drawing the 4th, 5th, 6th, and 7th dimension
How to draw 4, 5, 6, and 7 dimensional objects.
From playlist Physics
From playlist Dimensions Deutsch
From playlist Dimensions Russian / Pусский
Geometry: Ch 4 - Geometric Figures (1 of 18) Squares and Rectangles
Visit http://ilectureonline.com for more math and science lectures! In this video I will define the square and rectangle, explain the equations of their parameters, areas, and diagonals. Next video in this series can be seen at: https://youtu.be/yDgpmhYrKw4
From playlist GEOMETRY 4 - GEOMETRIC FIGURES
From playlist Dimensions Italiano
Ex: Find the Distance Between Two Points In Space
This video provides an example of how to find the distance between two points in 3D. Site: http://mathispower4u.com
From playlist Vectors in Space (3D)
Geometry: Ch 4 - Geometric Figures (4 of 18) The Triangle
Visit http://ilectureonline.com for more math and science lectures! In this video I will define the triangle, and explain the equations of its parameter and area. Next video in this series can be seen at: https://youtu.be/LsyWxrugfV8
From playlist GEOMETRY 4 - GEOMETRIC FIGURES
John GRACEY - Generalized Gross-Neveu Universality Class with Non-abelian Symmetry
We use the large N expansion to compute d-dimensional critical exponents at O(1/N^3) for a generalization of the Gross-Neveu Yukawa universality class that includes a non-abelian symmetry. Specific groups correspond to certain phase transitions in condensed matter physics such as graphene.
From playlist Algebraic Structures in Perturbative Quantum Field Theory: a conference in honour of Dirk Kreimer's 60th birthday
This is an informal talk on sporadic groups given to the Archimedeans (the Cambridge undergraduate mathematical society). It discusses the classification of finite simple groups and some of the sporadic groups, and finishes by briefly describing monstrous moonshine. For other Archimedeans
From playlist Math talks
Étienne Ghys: A guided tour of the seventh dimension
Abstract: One of the most amazing discoveries of John Milnor is an exotic sphere in dimension 7. For the layman, a sphere of dimension 7 may not only look exotic but even esoteric... It took a long time for mathematicians to gradually accept the existence of geometries in dimensions higher
From playlist Abel Lectures
This lecture was held by Abel Laureate John Milnor at The University of Oslo, May 25, 2011 and was part of the Abel Prize Lectures in connection with the Abel Prize Week celebrations. Program for the Abel Lectures 2011 1. "Spheres" by Abel Laureate John Milnor, Institute for Mathematical
From playlist Abel Lectures
Michael Atiyah, Seminars Geometry and Topology 1/2 [2009]
Seminars on The Geometry and Topology of the Freudenthal Magic Square Date: 9/10/2009 Video taken from: http://video.ust.hk/Watch.aspx?Video=98D80943627E7107
From playlist Mathematics
C. Li - Classifying sufficiently connected PSC manifolds in 4 and 5 dimensions (version temporaire)
In this talk, I will discuss some recent developments on the topology of closed manifolds admitting Riemannian metrics of positive scalar curvature. In particular, we will prove if a closed PSC manifold of dimension 4 (resp. 5) has vanishing π2 (resp. vanishing π2 and π3), then a finite co
From playlist Ecole d'été 2021 - Curvature Constraints and Spaces of Metrics
Lie Groups and Lie Algebras: Lesson 3 - Classical Groups Part I
Lie Groups and Lie Algebras: Lesson 3 - Classical Groups Part I We introduce the idea of the classical matrix groups and their associated carrier spaces. Please consider supporting this channel via Patreon: https://www.patreon.com/XYLYXYLYX
From playlist Lie Groups and Lie Algebras
C. Li - Classifying sufficiently connected PSC manifolds in 4 and 5 dimensions
In this talk, I will discuss some recent developments on the topology of closed manifolds admitting Riemannian metrics of positive scalar curvature. In particular, we will prove if a closed PSC manifold of dimension 4 (resp. 5) has vanishing π2 (resp. vanishing π2 and π3), then a finite co
From playlist Ecole d'été 2021 - Curvature Constraints and Spaces of Metrics
Chao Li: Classifying sufficiently connected PSC manifolds in 4 and 5 dimensions
Talk by Chao Li in Global Noncommutative Geometry Seminar (Americas) on December 3, 2021. https://globalncgseminar.org/talks/tba-18/
From playlist Global Noncommutative Geometry Seminar (Americas)
Space Coordinates Plotting Points in 3 Dimensions
Please Subscribe here, thank you!!! https://goo.gl/JQ8Nys Space Coordinates Plotting Points in 3 Dimensions
From playlist Calculus 3
Eliezer Rabinovici - Persistent Spontaneous Symmetry Breaking at High Temperatures
I will describe the results of a series of works in which we have found systems for which Spontaneous Symmetry Breaking(SSB) persists to very high temperatures. The systems involve Conformal Field Theories of scalars in fractional dimensions 3\ltd\lt3 and for Gauge Theories in d=4. The sys
From playlist Mikefest: A conference in honor of Michael Douglas' 60th birthday