In mathematics, the Rost invariant is a cohomological invariant of an absolutely simple simply connected algebraic group G over a field k, which associates an element of the Galois cohomology group H3(k, Q/Z(2)) to a principal homogeneous space for G. Here the coefficient group Q/Z(2) is the tensor product of the group of roots of unity of an algebraic closure of k with itself. Markus Rost first introduced the invariant for groups of type F4 and later extended it to more general groups in unpublished work that was summarized by Serre. The Rost invariant is a generalization of the Arason invariant. (Wikipedia).
The Routh-Hurwitz Stability Criterion
In this video we explore the Routh Hurwitz Stability Criterion and investigate how it can be applied to control systems engineering. The Routh Hurwitz Stability Criterion can be used to determine how many roots of a polynomial are in the right half plane. Topics and time stamps: 0:00 –
From playlist Control Theory
Vector Calculus: Understanding Curl
Some formal and informal intuition regarding curl, a vector calculus concept.
From playlist Summer of Math Exposition Youtube Videos
Review of Linear Time Invariant Systems
http://AllSignalProcessing.com for more great signal-processing content: ad-free videos, concept/screenshot files, quizzes, MATLAB and data files. Review: systems, linear systems, time invariant systems, impulse response and convolution, linear constant-coefficient difference equations
From playlist Introduction and Background
Free ebook http://tinyurl.com/EngMathYT A basic introduction to the curl of a vector field - one of the basic operations of vector calculus. I show how to calculate the curl and discuss its relationship with rotation and circulation density. Many examples are presented.
From playlist Engineering Mathematics
Why do we have to flip the sign when we divide or multiply by negative one - Cool Math
👉 Learn about solving an inequality and graphing it's solution. An inequality is a relation where the expression in the left hand side is not equal to the expression in the right hand side of the inequality sign. A linear inequality is an inequality whose highest power in the variable(s) i
From playlist Solve and Graph Inequalities | Learn About
Automorphy: Automorphy Lifting Theorems I (continued)
David Geraghty Princeton University; Institute for Advanced Study March 10, 2011 For more videos, visit http://video.ias.edu
From playlist Mathematics
Summary for solving one variable inequalities
👉 Learn about solving an inequality and graphing it's solution. An inequality is a relation where the expression in the left hand side is not equal to the expression in the right hand side of the inequality sign. A linear inequality is an inequality whose highest power in the variable(s) i
From playlist Solve and Graph Inequalities | Learn About
Matrix invariants and algebraic complexity theory - Harm Derksen
Computer Science/Discrete Mathematics Seminar I Topic: Matrix invariants and algebraic complexity theory Speaker: Harm Derksen More videos on http://video.ias.edu
From playlist Mathematics
Alien Inhabitants Of Our Coral Reefs (Ocean Documentary) | Real Wild
Coral reefs are some of the richest hotspots of biodiversity on the planet. The warm water reefs of the Pacific Ocean and Caribbean Sea are well know, but they don't only occur in warm waters. In some of the oceans coldest, darkest depths they are thriving. The deep water reefs are formed
From playlist The Science Of Nature | Spark X Earth Stories X Real Wild X Pets & Vets
Mixture Rasch model analysis with free software Jamovi
In this video, I will show how to do a mixture Rasch model analysis with free software Jamovi. Please download Jamovi from this link: https://www.jamovi.org/download.html Recommended papers: 1. Language Testing https://journals.sagepub.com/doi/abs/10.1177/0265532215594640 2. Internationa
From playlist Jamovi software
Korrosion – verletzlicher Stahl
Bei der Korrosion von Eisen spielen Wasser und Sauerstoff zusammen und wandeln das Metall unaufhörlich in Rost um, eine Mischung verschiedener Eisenoxide und –hydroxide. Der Prozesse läuft in mehreren Schritten ab und wird durch Salz im Wasser dramatisch beschleunigt. Material für die Sch
From playlist Videos auf Deutsch
Jean-Louis Colliot-Thélène : H3 non ramifié et cycles de codimension 2
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
The History Guy Podcast: Fantastic Frauds: Titanic Thompson and Stanley Weyman
The History Guy podcast features two stories of fraudsters, who despite their less than honest lives deserve to be remembered. First is the story of Titanic Thompson, supposedly the inspiration for Sky Masterson of Guys and Dolls, who was so good that he cheated Al Capone at a bet - and ma
From playlist Podcast
Building Malware in Rust TBG by Stu Small - Denver Rust Meetup
This was recorded on 2021-01-06 at the Denver Rust meetup.
From playlist Denver Rust Meetup
Making liquid chlorine gas and then ampouling it
DO NOT TRY THIS OUT YOURSELF! Proper PPE and safety measurements were alway in place. I do not take any responsibility if you recreate what was done in this video. These chlorine ampoules are under high pressure. They can easily break sending shrapnels and toxic chlorine gas everywhere.
From playlist Liquified Gasses
Korrosion - Rost gehört zum alten Eisen
Korrosion frisst jährlich etwa drei Prozent der Wirtschaftsleistung, das sind alleine in Deutschland 70 Milliarden Euro. Eine Polymerbeschichtung, die bei Bedarf korrosionshemmende Substanzen freisetzt und Kratzer sogar selbst heilt, soll den Schaden begrenzen. Doch die verschiedenen Kompo
From playlist Most popular videos
The Myth of the Gun - Why America Loves FPS Games So Much - Extra Credits
Why does the US produce so many more First Person Shooters than Japan? How does our culture shape the way we view our weapons and ourselves as warriors? Subscribe for new episodes every Wednesday! http://bit.ly/SubToEC (---More below) (Original air date: May 18, 2011) _________ Get your
From playlist Extra Credits (ALL EPISODES)
Geometric and algebraic aspects of space curves | Differential Geometry 20 | NJ Wildberger
A space curve has associated to it various interesting lines and planes at each point on it. The tangent vector determines a line, normal to that is the normal plane, while the span of adjacent normals (or equivalently the velocity and acceleration) is the osculating plane. In this lectur
From playlist Differential Geometry
Geometry of Quantum Uncertainty - Leonid Polterovich
Symplectic Seminar Topic: Geometry of Quantum Uncertainty Speaker: Leonid Polterovich Affiliation: Tel Aviv University Date: April 10, 2020 For more video please visit http://video.ias.edu
From playlist Mathematics
How to solve and graph one variable inequalities
👉 Learn about solving an inequality and graphing it's solution. An inequality is a relation where the expression in the left hand side is not equal to the expression in the right hand side of the inequality sign. A linear inequality is an inequality whose highest power in the variable(s) i
From playlist Solve and Graph Inequalities | Learn About