Commutative algebra | Algebraic geometry
In commutative algebra, an N-1 ring is an integral domain whose integral closure in its quotient field is a finitely generated -module. It is called a Japanese ring (or an N-2 ring) if for every finite extension of its quotient field , the integral closure of in is a finitely generated -module (or equivalently a finite -algebra). A ring is called universally Japanese if every finitely generated integral domain over it is Japanese, and is called a Nagata ring, named for Masayoshi Nagata, or a pseudo-geometric ring if it is Noetherian and universally Japanese (or, which turns out to be the same, if it is Noetherian and all of its quotients by a prime ideal are N-2 rings). A ring is called geometric if it is the local ring of an algebraic variety or a completion of such a local ring, but this concept is not used much. (Wikipedia).
Ring Definition (expanded) - Abstract Algebra
A ring is a commutative group under addition that has a second operation: multiplication. These generalize a wide variety of mathematical objects like the integers, polynomials, matrices, modular arithmetic, and more. In this video we will take an in depth look at the definition of a rin
From playlist Abstract Algebra
Buy at http://www.shapeways.com/shops/GeometricToy "Torus Magic" can eat another torus.This torus object is constructed with 30 large rings(70mm diameter) and many small rings. Copyright (c) 2015,AkiraNishihara
From playlist 3D printed toys
Abstract Algebra: The definition of a Ring
Learn the definition of a ring, one of the central objects in abstract algebra. We give several examples to illustrate this concept including matrices and polynomials. Be sure to subscribe so you don't miss new lessons from Socratica: http://bit.ly/1ixuu9W ♦♦♦♦♦♦♦♦♦♦ We recommend th
From playlist Abstract Algebra
Ring Examples (Abstract Algebra)
Rings are one of the key structures in Abstract Algebra. In this video we give lots of examples of rings: infinite rings, finite rings, commutative rings, noncommutative rings and more! Be sure to subscribe so you don't miss new lessons from Socratica: http://bit.ly/1ixuu9W ♦♦♦♦♦♦♦♦♦
From playlist Abstract Algebra
Adam Savage's One Day Builds: Mercury Spacesuit Wrist Rings, Part 2
Adam is back to finish his replica wrist connectors for his new Mercury spacesuit costume! After the arduous process of machining the glove rings in the first part, Adam gets to the fun of weathering the aluminum to look like real vintage NASA hardware. And for that, he brings out a new pi
From playlist Adam Savage's One Day Builds
Adam Savage's Apollo A7L Spacesuit Upgrade!
Adam’s Apollo spacesuit gets a major upgrade! After showing us some of his favorite details on his A7L, Adam shares a few recent modifications that showcase spacesuit replica maker Ryan Nagata's talent and incredible attention to detail, including new gloves, new wrist rings, a new bubble
From playlist Inside Adam's Cave
Adam Savage Reviews the Spacesuits of MOONFALL!
#Moonfall – Now playing in theaters and IMAX. Get your tickets now: https://tickets.moonfall.movie/ Adam geeks out over a pair of spacesuits created for the new film Moonfall! In this special unboxing, Adam examines the construction and design of these hero spacesuits to deduce their NASA
From playlist Inside Adam's Cave
Adam Savage Incognito at New York Comic Con!
Adam embarks on his mission to explore the show floor at New York Comic Con, in his new NASA ACES spacesuit cosplay! As Adam suits up, he shows all the parts that make up this intricate replica, and describes how its build was truly a team effort. Let's follow this space man on his NYCC ad
From playlist Comic Con
Commutative algebra 1 (Introduction)
This lecture is part of an online course on commutative algebra, following the book "Commutative algebra with a view toward algebraic geometry" by David Eisenbud. https://link.springer.com/book/10.1007/978-1-4612-5350-1 This is a short introductory lecture, and gives a few examples of the
From playlist Commutative algebra
Definition of a Ring and Examples of Rings
Please Subscribe here, thank you!!! https://goo.gl/JQ8Nys Definition of a Ring and Examples of Rings - Definition of a Ring. - Definition of a commutative ring and a ring with identity. - Examples of Rings include: Z, Q, R, C under regular addition and multiplication The Ring of all n x
From playlist Abstract Algebra
Abstract Algebra 2.1: Introduction to Rings
In this video, I will introduce rings and basic examples of rings. Translate This Video : http://www.youtube.com/timedtext_video?ref=share&v=jesyk7_ti6Q Notes : None yet Patreon : https://www.patreon.com/user?u=16481182 Teespring : https://teespring.com/stores/fematika Email : fematikaqna
From playlist Abstract Algebra
How It's Made: Class and Championship Rings
Stream Full Episodes of How It's Made: https://www.discoveryplus.com/show/how-its-made Subscribe to Science Channel: http://bit.ly/SubscribeScience Like us on Facebook: https://www.facebook.com/ScienceChannel Follow us on Twitter: https://twitter.com/ScienceChannel Follow us on Instag
From playlist How It's Made
Inside Adam Savage's Cave: New Spacesuit Hardware!
Adam gets more space stuff in the cave! With the 50th anniversary of the moon landing later this month, Adam shares a few new props made by fellow space enthusiast Ryan Nagata. First is a unique camera+propulsion system made for Gemini, followed by an Apollo-era bubble helmet of unsurpasse
From playlist Celebrating Alien
Buy at http://www.shapeways.com/shops/GeometricToy "Torus Magic" can eat another torus.This torus object is constructed with 30 large rings(70mm diameter) and many small rings. Copyright (c) 2015,AkiraNishihara
From playlist 3D printed toys
Ryan Nagata's Apollo Pressure Suit Replica!
Adam is awestruck by Ryan Nagata's replica of an Apollo-era pressure suit. This meticulous recreation of what was underneath the iconic white A7-L spacesuits showcases the engineering challenges that the spacesuit designers at ILC had to surmount to give Apollo astronauts mobility while ke
From playlist Cosplayer Interviews
Inside Adam Savage's Cave: Ryan Nagata's First Spacesuit!
While visiting Adam's cave to collaborate on a project, spacesuit replica builder Ryan Nagata brought a blast from the past: the very first spacesuit he made when he was 14 years old. Adam and Ryan pore over the details of this suit, which includes snoopy cap, gloves, and helmet. It's a te
From playlist Inside Adam's Cave
Commutative algebra 4 (Invariant theory)
This lecture is part of an online course on commutative algebra, following the book "Commutative algebra with a view toward algebraic geometry" by David Eisenbud. This lecture is an informal historical summary of a few results of classical invariant theory, mainly to show just how complic
From playlist Commutative algebra
"Finger Ring Jitterbug" was invented by Caspar SCHWABE. The "jitterbug" transformation was discovered by Buckminster Fuller in 1948.
From playlist 3D printed toys
Inside Adam Savage's Cave: New Apollo EVA Gloves!
Adam welcomes spacesuit replica maker Ryan Nagata back to the cave to share his latest iteration of Apollo 11 EVA gloves! Ryan's previous glove builds were already the best we've seen, but new measurements, materials, and fabrication techniques makes these even better. Adam and Ryan geek o
From playlist Inside Adam's Cave
This levitron manufactured by my friend İzzet Özgöçmen. We enjoyed playing with it.
From playlist Izzet Özgöçmen