In mathematics, especially in the fields of group theory and Lie theory, a central series is a kind of normal series of subgroups or Lie subalgebras, expressing the idea that the commutator is nearly trivial. For groups, this is an explicit expression that the group is a nilpotent group, and for matrix rings, this is an explicit expression that in some basis the matrix ring consists entirely of upper triangular matrices with constant diagonal. This article uses the language of group theory; analogous terms are used for Lie algebras. The lower central series and upper central series (also called the descending central series and ascending central series, respectively), are, despite the "central" in their names, central series if and only if a group is nilpotent. (Wikipedia).
ADVANCED ANCIENT EGYPTIAN TECH UNCOVERED | Secrets of Ancient Egypt
Experts examine a cylinder shaped "core" from ancient Egypt that could reveal more advanced technologies, in this clip from Ancient Mysteries. #AncientMysteries Subscribe for more from Ancient Mysteries and other great The HISTORY Channel shows: http://histv.co/SubscribeHistoryYT HISTOR
From playlist Secrets of Ancient Egypt | History
Deconstructing History : Deconstructing History: Grand Central Terminal | History
Grand Central Terminal is one of America's busiest train stations, with over 700,000 people passing through it every day. Find out more about this iconic landmark. HISTORY®, now reaching more than 98 million homes, is the leading destination for award-winning original series and specials
From playlist Web Originals | History
Great Lake Warriors: Image Spot | History
Great Lake Warriors. New Series Premieres July 19th. Thursdays 10/9c. HISTORY®, now reaching more than 98 million homes, is the leading destination for award-winning original series and specials that connect viewers with history in an informative, immersive, and entertaining manner across
From playlist Great Lake Warriors | History
History's Greatest Mysteries: WHERE IS the Lost Ark of the Covenant?! | #Shorts
Will we ever know what happened to the Ark of the Covenant? See more in this #Short from History's Greatest Mysteries. #HistorysGreatestMysteries Subscribe for more from History's Greatest Mysteries and other great The HISTORY Channel shows: http://histv.co/SubscribeHistoryYT Find out
From playlist History's Greatest Mysteries | Official Series Playlist | History
This Week In History: Transcontinental Railroad | History
In 1896, the Transcontinental Railroad was completed, connecting the East Coast with the West Coast for the first time in American History. It was a golden opportunity. #ThisWeekInHistory Subscribe for more HISTORY: http://histv.co/SubscribeHistoryYT Newsletter: https://www.history.com/n
From playlist This Week in History | HISTORY
SIX: New Drama Series | Premieres Wednesday January 18 10/9c | History
Watch new drama series 'SIX', premiering Wednesday January 18 10/9c on HISTORY. #SIX Subscribe for more from SIX and other HISTORY series: http://histv.co/SubscribeHistoryYT Newsletter: https://www.history.com/newsletter Website - http://www.history.com Facebook - https://www.facebook.co
From playlist SIX | Official Series Playlist | History
History's Most Controversial Photos | History
Look back at some of the photographs and photography installations that left their mark on history. Newsletter: https://www.history.com/newsletter Website - http://www.history.com /posts Facebook - https://www.facebook.com/History Twitter - https://twitter.com/history HISTORY Topical Vid
From playlist Examine the Past | History
SIX: Behind the Scenes Trailer | New Series Premieres Jan 18 10/9c | History
Watch the official behind the scenes trailer for the new series 'SIX', premiering Wednesday January 18 10/9c on HISTORY. #SIX Subscribe for more from SIX and other HISTORY series: http://histv.co/SubscribeHistoryYT Newsletter: https://www.history.com/newsletter Website - http://www.histo
From playlist SIX | Official Series Playlist | History
Mysteries of the Egyptian Book of the Dead | Secrets of Ancient Egypt
In the Book of the Dead people must come face to face with the Gods and confess their negatives, in this clip from, Season 1, "THE EGYPTIAN BOOK OF THE DEAD." #SecretsofAncientEgypt Subscribe for more HISTORY: http://histv.co/SubscribeHistoryYT Check out exclusive HISTORY content: Histo
From playlist Secrets of Ancient Egypt | History
Robert Palovics - Temporal walk based centrality metrics for graph streams
https://indico.math.cnrs.fr/event/3475/attachments/2180/2567/Palovics_GomaxSlides.pdf
From playlist Google matrix: fundamentals, applications and beyond
On the pioneering works of Professor I.B.S. Passi by Sugandha Maheshwari
PROGRAM GROUP ALGEBRAS, REPRESENTATIONS AND COMPUTATION ORGANIZERS: Gurmeet Kaur Bakshi, Manoj Kumar and Pooja Singla DATE: 14 October 2019 to 23 October 2019 VENUE: Ramanujan Lecture Hall, ICTS Bangalore Determining explicit algebraic structures of semisimple group algebras is a fund
From playlist Group Algebras, Representations And Computation
Numerical Differentiation with Finite Difference Derivatives
Approximating derivatives numerically is an important task in many areas of science and engineering, especially for simulating differential equations. In this video, I introduce several approaches to approximate derivatives using finite difference schemes. The error of each method is exp
From playlist Engineering Math: Differential Equations and Dynamical Systems
Numerical Differentiation: Second Derivatives and Differentiating Data
This video explores how to numerically compute second derivatives and how to differentiate vectors of data. Examples are given in Python and Matlab. Playlist: https://www.youtube.com/playlist?list=PLMrJAkhIeNNTYaOnVI3QpH7jgULnAmvPA Course Website: http://faculty.washington.edu/sbrunton
From playlist Engineering Math: Differential Equations and Dynamical Systems
Anderson Vera - A double Johnson filtration for the mapping class group
38th Annual Geometric Topology Workshop (Online), June 15-17, 2021 Anderson Vera, Pohang University of Science and Technology (POSTECH - BK21 FOUR Mathematical Sciences Division) Title: A double Johnson filtration for the mapping class group and the Goeritz group of the sphere Abstract: I
From playlist 38th Annual Geometric Topology Workshop (Online), June 15-17, 2021
Martin Bridson - Subgroups of direct products of surface groups
After reviewing what is known about subgroups of direct products of surface groups and their significance in the story of which groups are Kähler, I shall describe a new construction that provides infinite families of finitely presented subgroups. These subgroups have varying higher-finite
From playlist Geometry in non-positive curvature and Kähler groups
Twitch Talks - Probability and Statistics
Presenter: Gosia Konwerska Wolfram Research developers demonstrate the new features of Version 12 of the Wolfram Language that they were responsible for creating. Previously broadcast live on June 6, 2019 at twitch.tv/wolfram. For more information, visit: https://www.wolfram.com/language/
From playlist Twitch Talks
Lecture: Numerical Differentiation Methods
From simple Taylor series expansions, the theory of numerical differentiation is developed.
From playlist Beginning Scientific Computing
Imprimitive irreducible representations of finite quasisimple groups by Gerhard Hiss
DATE & TIME 05 November 2016 to 14 November 2016 VENUE Ramanujan Lecture Hall, ICTS Bangalore Computational techniques are of great help in dealing with substantial, otherwise intractable examples, possibly leading to further structural insights and the detection of patterns in many abstra
From playlist Group Theory and Computational Methods
Bootstrapping the space of 4d N=2 SCFTs by Madalena Lemos
Nonperturbative and Numerical Approaches to Quantum Gravity, String Theory and Holography DATE:27 January 2018 to 03 February 2018 VENUE:Ramanujan Lecture Hall, ICTS Bangalore The program "Nonperturbative and Numerical Approaches to Quantum Gravity, String Theory and Holography" aims to
From playlist Nonperturbative and Numerical Approaches to Quantum Gravity, String Theory and Holography
SIX: A Mission Close to Home | New Series Premieres Jan 18 10/9c | History
When a fellow Team 6 SEAL is taken, they take the mission. No questions asked. Watch new drama series 'SIX', premiering Wednesday January 18 10/9c on HISTORY. #SIX Subscribe for more from SIX and other HISTORY series: http://histv.co/SubscribeHistoryYT Newsletter: https://www.history.com
From playlist SIX | Official Series Playlist | History