Adjoint functors | Commutative algebra | Ring theory
In algebra, given a ring homomorphism , there are three ways to change the coefficient ring of a module; namely, for a left R-module M and a left S-module N, * , the induced module. * , the coinduced module. * , the restriction of scalars. They are related as adjoint functors: and This is related to Shapiro's lemma. (Wikipedia).
Spinning ring puts surprising twist on familiar physics
Differences in drag cause the ring to switch directions as it wobbles around. Read more http://scim.ag/1FJbRe3
From playlist Materials and technology
Ring Theory: We define rings and give many examples. Items under consideration include commutativity and multiplicative inverses. Example include modular integers, square matrices, polynomial rings, quaternions, and adjoins of algebraic and transcendental numbers.
From playlist Abstract Algebra
Make a RING APPEAR at your FINGERTIPS! - Magic Trick
LEARN A TRICK I CREATED HERE: https://sellfy.com/p/OiqQ/ Official Merch Store: https://teespring.com/stores/ramsays-shop YO! Today I'm teaching you one of my go to impromptu ring tricks, the appearing ring! This can also be done with any small object and is really impossible to figure ou
From playlist Tutorials
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
Biring example: direct sum ring scheme
Here we give the example of a ring scheme which gives rise to the theory of difference rings.
From playlist Birings
AMAZING Physics Trick with Ring That You Must See!
Ring catch chain trick The trick with this one is in how you drop the ring. If you let go of the ring with both fingers at the same time it would just drop to the floor. What you need to do is just release your thumb and keep your finger still. When you do this it causes the ring to fall
From playlist MECHANICS
Determining clockwise vs counter clockwise rotations
👉 Learn how to rotate a figure and different points about a fixed point. Most often that point or rotation will be the original but it is important to understand that it does not always have to be at the origin. When rotating it is also important to understand the direction that you will
From playlist Transformations
At 23:06 https://youtu.be/QgrvhjXyIIc?t=1386, I made a mistake, here is a more precise statement (also corrected later in the video): * the equality holds if degrees of A and B are different; * however, if deg A = deg B, then the sum may have a smaller degree, in the event that the leading
From playlist Abstract Algebra 2
Rings and modules 1 Introduction
This lecture is part of an online course on ring theory, at about the level of a first year graduate course or honors undergraduate course. This is the introductory lecture, where we recall some basic definitions and examples, and describe the analogy between groups and rings. For the
From playlist Rings and modules
This video covers Section 22.5 of Cutnell & Johnson Physics 10e, by David Young and Shane Stadler, published by John Wiley and Sons. The lecture is part of the course General Physics - Life Sciences I and II, taught by Dr. Boyd F. Edwards at Utah State University. This video was produced
From playlist Lecture 22A. Electromagnetic Induction
HUGE planetary rings of J1407b in Universe Sandbox 2
Support this channel on Patreon: https://www.patreon.com/user?u=2318196&ty=h Hello and welcome to What Da Math! In this video, we will recostruct the unusual ring system of the planet in J1407b star system and try to see what it looks like in Universe Sandbox 2. Watch more to learn this
From playlist Universe Sandbox 2
In this video, we prove certain formal properties of THH, for example that it has a universal property in the setting of commutative rings. We also show base-change properties and use these to compute THH of perfect rings. Feel free to post comments and questions at our public forum at h
From playlist Topological Cyclic Homology
Electromagnetism - Maxwell's Laws
Easy to understand 3D animation explaining all of Maxwell’s Equations. Includes explanations of induction motors, magnetic materials, electromagnetic waves, and many other topics.
From playlist Science
Testing and Trials: Crash Course Kids #44.2
More trials! This time we need to figure out what to do if you don't have all the things you'd like to have to perform your tests. How do you isolate a variable across multiple tests? A good engineer will work to find a way to make it happen. In this episode of Crash Course Kids, Sabrina s
From playlist Engineering: The Engineering Process
Induction Motors - Why and how an induction motor works
3D animation explaining why an induction motor rotates.
From playlist Physics
Moduli of p-divisible groups (Lecture 1) by Ehud De Shalit
PERFECTOID SPACES ORGANIZERS: Debargha Banerjee, Denis Benois, Chitrabhanu Chaudhuri, and Narasimha Kumar Cheraku DATE & TIME: 09 September 2019 to 20 September 2019 VENUE: Madhava Lecture Hall, ICTS, Bangalore Scientific committee: Jacques Tilouine (University of Paris, France) Eknath
From playlist Perfectoid Spaces 2019
Derive the Area of a Circle by Integrating the Circumference
This video explains how to derive the area formula for a circle using integration. http://mathispower4u.com
From playlist Applications of Integration: Arc Length, Surface Area, Work, Force, Center of Mass
Commutative algebra 24 Artinian modules
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. We define Artinian rings and modules, and give several examples of them. We then study finite length modules, show that they
From playlist Commutative algebra
How does the fixed point affect our rotation
👉 Learn how to rotate a figure and different points about a fixed point. Most often that point or rotation will be the original but it is important to understand that it does not always have to be at the origin. When rotating it is also important to understand the direction that you will
From playlist Transformations