Lie groups | Discrete groups | Combinatorics on words | Lemmas in group theory

Ping-pong lemma

In mathematics, the ping-pong lemma, or table-tennis lemma, is any of several mathematical statements that ensure that several elements in a group acting on a set freely generates a free subgroup of that group. (Wikipedia).

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Ping pong Ball Dielectric - Part 2

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From playlist All Demos

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STEREOLAB PING PONG

THE 1994 SINGLE TAKEN FROM THE ALBUM MARS AUDIAC QUINTET

From playlist the absolute best of stereolab

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Water Balloon Ping Pong Ball

A water-filled ping pong ball collides with a water balloon at approximately 25 m/s. The inelastic collision dramatically deforms the water balloon. The ping pong ball weighs 0.033 kg and is propelled by a Toro leaf blower; the water balloon is 3.36 kg and is suspended by a single string.

From playlist Newtonian Mechanics

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Discrete groups in complex hyperbolic geometry (Lecture - 2) by Pierre Will

Geometry, Groups and Dynamics (GGD) - 2017 DATE: 06 November 2017 to 24 November 2017 VENUE: Ramanujan Lecture Hall, ICTS, Bengaluru The program focuses on geometry, dynamical systems and group actions. Topics are chosen to cover the modern aspects of these areas in which research has b

From playlist Geometry, Groups and Dynamics (GGD) - 2017

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Ian Runnels: Effectively Generating RAAGs in MCGs

Abstract : Given a (mostly arbitrary) collection of mapping classes on a surface S, we find an explicit constant N such that their Nth powers generate a right-angled Artin subgroup of the mapping class group MCG(S). CIRM VIRTUAL EVENT Recorded during the meeting"Virtual Geometric Group

From playlist Virtual Conference

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How to fix a ping pong table tennis ball and remove the dent

How to fix the dent in a pingpong ball. Simply put the ball in a glass of hot water for 10 seconds.

From playlist Fun Science Episodes

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Robot hand moves a ping pong ball

Stanford researchers developed the skin-like touch sensors that enable this robotic hand to deliver just the right amount of pressure to lift and move a ping pong ball without crushing it. In this demonstration they programmed the hand. One day they hope to create control systems to enable

From playlist Engineering in Action

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Anosov groups: local mixing, counting, and equidistribution - Minju Lee

Arithmetic Groups Topic: Anosov groups: local mixing, counting, and equidistribution Speaker: Minju Lee Affiliation: Member, School of Mathematics Date: February 16, 2022 This is joint work with Samuel Edwards and Hee Oh. Let G be a connected semisimple real algebraic group, and Γ less t

From playlist Mathematics

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Kathryn Mann: Orderability and groups of homeomorphisms of the circle

Abstract: As a counterpart to Deroin's minicourse, we discuss actions of groups on the circle in the C0 setting. Here, many dynamical properties of an action can be encoded by the algebraic data of a left-invariant circular order on the group. I will highlight rigidity and flexibility phen

From playlist Dynamical Systems and Ordinary Differential Equations

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Thin Matrix Groups - a brief survey of some aspects - Peter Sarnak

Speaker: Peter Sarnak (Princeton/IAS) Title: Thin Matrix Groups - a brief survey of some aspects More videos on http://video.ias.edu

From playlist Mathematics

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How many ping-pong balls would it take to lift the Titanic?

Lifting the Titanic with ping pong balls was a real suggestion put forward in the 1970's that needless to say did not happen. Let's pretend it is possible and work out how many we would need using Archimedes Principle... This is the latest question from Tom Rocks Maths and I Love Mathemat

From playlist I Love Mathematics

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Destroying a Soda Can with a Ping Pong Ball!

Kishore and Norm are joined by Zeke Kossover from San Francisco's Exploratorium science museum to show how you can destroy a soda can with a ping pong ball moving at almost the speed of sound! Thanks to the Exploratorium for sharing with us these experiments. Visit them at http://www.exp

From playlist Tested Builds

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Help my 64 years old mother get better at ping pong / table tennis

Hey everyone. My table tennis table has been sitting in the garage for a while. I watched some Adam Bobrow Youtube videos recently and that inspired me to take out the table and play a few games. I started playing since quite young. I mainly played tennis growing up and I've only had a pi

From playlist Table Tennis

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Acylindrically hyperbolic structures on groups - Balasubramanya

Women and Mathematics Title: Acylindrically hyperbolic structures on groups Speaker: Sahana Hassan Balasubramanya Affiliation: Vanderbilt University Date: May 23, 2017 For more videos, please visit http://video.ias.edu

From playlist Mathematics

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The Spangler Effect - Ping Pong Popper Season 01 Episode 16

The Spangler Effect series was created by Steve Spangler in partnership with YouTube’s Original Content Creator Project. © 2012 Steve Spangler, Inc. All Rights Reserved Steve Spangler is a bestselling author, STEM educator and Emmy award-winning television personality with more than 1,500

From playlist Collaborations

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Hack a leaf blower to make a ping pong ball cannon | Make Science Fun

How to make a ping pong ball cannon from a leaf blower | Make Science Fun Science Projects to Make at Home | Playlist https://www.youtube.com/watch?v=7s-JmXToY24&list=PLvVIP8r65WapbTeRl27qZUaVuCefoPW4s Subscribe to Make Science Fun http://www.youtube.com/subscription_center?add_user=Make

From playlist Science Projects to make at Home

Related pages

Group action | Order (group theory) | Outer automorphism group | Homeomorphism | Fixed point (mathematics) | Bass–Serre theory | Free product | Schottky group | Free group | Group (mathematics) | Identity element | Riemann sphere | Disjoint sets | Finitely generated group | Teichmüller space | Mathematical proof | Virtually | Generating set of a group | Empty set | Linear group | Neighbourhood (mathematics) | Geometric topology | Corollary | Riemann surface | Kleinian group | Mathematics | Integer | Felix Klein | Isometry | Cyclic group | Without loss of generality | Möbius transformation | Geometric group theory | Special linear group | Subgroup | Automorphism group | Solvable group | Matrix (mathematics) | Mapping class group | HNN extension | Tits alternative