In mathematics, a Ree group is a group of Lie type over a finite field constructed by Ree from an exceptional automorphism of a Dynkin diagram that reverses the direction of the multiple bonds, generalizing the Suzuki groups found by Suzuki using a different method. They were the last of the infinite families of finite simple groups to be discovered. Unlike the Steinberg groups, the Ree groups are not given by the points of a connected reductive algebraic group defined over a finite field; in other words, there is no "Ree algebraic group" related to the Ree groups in the same way that (say) unitary groups are related to Steinberg groups. However, there are some exotic pseudo-reductive algebraic groups over non-perfect fields whose construction is related to the construction of Ree groups, as they use the same exotic automorphisms of Dynkin diagrams that change root lengths. defined Ree groups over infinite fields of characteristics 2 and 3. and introduced Ree groups of infinite-dimensional Kac–Moody algebras. (Wikipedia).
REU Summer 2016 Presentations 2
From playlist 2016 Summer REU Presentations
These Rare Elements Are Key to Renewable Energy, But What If They Run Out?
Turns out, green technologies might not be so green. Rare earth elements used in these technologies have a big environmental impact, but there are some solutions. » Subscribe to Seeker! http://bit.ly/subscribeseeker (then hit the little 🔔 icon and select "all.") » Watch more Elements! h
From playlist Elements | Seeker
REU Summer 2016 Presentations 4
From playlist 2016 Summer REU Presentations
REU Summer 2016 Presentations 3
From playlist 2016 Summer REU Presentations
Martin Rees - Will the Universe Ever End?
What does it mean to ask about the end of the universe? Can the universe even have an end? What would end? In the far, far future, what happens to stars, galaxies, and black holes? What about mass and energy, even space and time? What's the 'Big Crunch' and the 'Big Rip'? And what if there
From playlist Closer To Truth - Martin Rees Interviews
Martin Rees - Why Believe in Multiple Universes?
Multiple universes used to be pure speculation. Today, most cosmologists are sure they exist, perhaps in many forms and almost certainly in vast numbers, perhaps infinite in size and scope. What caused multiple universes to go from far-out guesswork to conventional wisdom? And does anyone
From playlist Exploring the Multiverse - Closer To Truth - Core Topic
Martin Rees - What Happens in the Far Far Future?
Our universe has existed for about 14 billion years. Looking backwards, that's about 1 followed by 10 zeros. Looking forwards, into the far far future, cosmologists can forecast what will happen in years numbered by 1 followed by 100 zeros! What will our universe be like? What happens to g
From playlist In the Far Future - Closer To Truth - Core Topic
Grip It | Going Deep With David Rees
David learns how to strengthen his grip from a group of professional arm wrestlers. No shirts required. ➡ Subscribe: http://bit.ly/NatGeoSubscribe About National Geographic: National Geographic is the world's premium destination for science, exploration, and adventure. Through their wor
From playlist Going Deep with David Rees | National Geographic
People of Science with Brian Cox - Professor Martin Rees on Joseph Rotblat
Martin Rees talks to Brian Cox about one of his heroes, Joseph Rotblat, a physicist on the Manhattan Project, who later became a leading advocate of peace and disarmament. Archive credits: Portrait of Joseph Rotblat © Anne Purkiss Hans Bethe portrait - Los Alamos National Laboratory, a
From playlist People of Science with Brian Cox
REU Summer 2016 Presentations 7
From playlist 2016 Summer REU Presentations
Is the Universe Religiously Ambiguous? | Episode 1001 | Closer To Truth
Does God exist or not exist? How can so many people be so absolutely sure-either way? But maybe that's the point! Maybe "God" and "No God" are both defensible. What would that mean? Featuring interviews with Sean Carroll, Bernard Carr, Martin Rees, Christopher Isham, and J.L. Schellenberg.
From playlist Closer To Truth | Season 10
Plane Trigonometry by Sparks and Rees #shorts
Plane Trigonometry by Sparks and Rees #shorts This is the book on amazon: https://amzn.to/3kImuUm (note this is my affiliate link) Book Review #shorts: https://www.youtube.com/playlist?list=PLO1y6V1SXjjPqMhU21NyGnwVnlF0UIheP Full Book Reviews: https://www.youtube.com/playlist?list=PLO1y
From playlist Book Reviews #shorts
Martin Rees - Did Our Universe Have a Beginning?
Everything in the universe has a beginning, but how can the universe as a whole have a beginning? Does the cosmos come with a start date? Does a universal commencement make sense? What would it possibly mean? And what if there are multiple universes? Does the entire multiverse have a begin
From playlist Closer To Truth - Martin Rees Interviews
Computations in Tangle Floer Homology
Speaker Ayeong (Amy) Lee Topics discussed Basic structures, Tangle Module Structures, Chain Complex and Box Tensor Product and Tangle Floer Homology Groups.
From playlist 2018 Summer REU Presentations
Key Radio Unification Steps Before 1980 and Some Related Recent Radio Observations by A. Readhead
Extragalactic Relativistic Jets: Cause and Effect PROGRAM LINK: www.icts.res.in/program/ERG2015 DATES: Monday 12 Oct, 2015 - Tuesday 20 Oct, 2015 VENUE: Ramanujan Lecture Hall, ICTS Bangalore DESCRIPTION : Active Galactic Nuclei (AGN) are the luminous centers of galaxies that are belie
From playlist Extragalactic Relativistic Jets: Cause and Effect