Smooth functions | Generalizations of the derivative | Differential geometry
In differential geometry, pushforward is a linear approximation of smooth maps on tangent spaces. Suppose that φ : M → N is a smooth map between smooth manifolds; then the differential of φ, , at a point x is, in some sense, the best linear approximation of φ near x. It can be viewed as a generalization of the total derivative of ordinary calculus. Explicitly, the differential is a linear map from the tangent space of M at x to the tangent space of N at φ(x), . Hence it can be used to push tangent vectors on M forward to tangent vectors on N. The differential of a map φ is also called, by various authors, the derivative or total derivative of φ. (Wikipedia).
Riemannian Geometry - Examples, pullback: Oxford Mathematics 4th Year Student Lecture
Riemannian Geometry is the study of curved spaces. It is a powerful tool for taking local information to deduce global results, with applications across diverse areas including topology, group theory, analysis, general relativity and string theory. In these two introductory lectures
From playlist Oxford Mathematics Student Lectures - Riemannian Geometry
Riemannian Geometry - Definition: Oxford Mathematics 4th Year Student Lecture
Riemannian Geometry is the study of curved spaces. It is a powerful tool for taking local information to deduce global results, with applications across diverse areas including topology, group theory, analysis, general relativity and string theory. In these two introductory lectures
From playlist Oxford Mathematics Student Lectures - Riemannian Geometry
What is General Relativity? Lesson 57: Pulback and Pushforward (REDUX-Sound correction) A
What is General Relativity? Lesson 57: Pullback and Pushforward This video is the repaired version of Lesson 57. The previous version has significant sound problems. To get through the material regarding the curvature scalar we need to understand some basic operations involving manifolds
From playlist What is General Relativity?
Lie derivative of a vector field (flow and pushforward)
Part 2: https://youtu.be/roFNj3k4Lmc In this video I show you how you can derive the Lie derivative of a vector field. First, we look at a vector field on a manifold and develop the notion of an integral curve followed by the flow of the vector field. We can then move another vector along
From playlist Lie derivative
Determine if the Functions are Linearly Independent or Linearly Dependent
Please Subscribe here, thank you!!! https://goo.gl/JQ8Nys How to determine if three functions are linearly independent or linearly dependent using the definition.
From playlist Differential Equations
Simple Machines (3 of 7) Pulleys; Calculating Forces, Distances, MA, Part 2
For the pulley simple machine shows how to calculate the input force, input distance and the mechanical advantage. A simple machine is a mechanical device that changes the direction and the magnitude of a force. In general, they can be defined as the simplest mechanisms that use mechani
From playlist Mechanics
What is General Relativity? Lesson 58: Scalar Curvature Part 7: Pullback and Pushforward
What is General Relativity? Lesson 58: Scalar Curvature Part 7: Pullback and Pushforward This lecture covers the pullback of convector fields. Also, we cast pushforwards and pullbacks in terms of coordinate charts. Please consider supporting this channel via Patreon: https://www.patreon
From playlist What is General Relativity?
Another, perhaps better, method of solving for a higher-order, linear, nonhomogeneous differential equation with constant coefficients. In essence, some form of differentiation is performed on both sides of the equation, annihilating the right-hand side (to zero), so as to change it into
From playlist Differential Equations
Mboyo Esole on Euler Characteristic and Pushforward of Weierstrass Models
Date: May 31, 2017 Location: Worldwide Center of Mathematics Dr. Esole Gives a talk on the subject of Algebraic Geometry, and details a pushforward technique for the Euler Characteristic of Crepant Resolutions of elliptic curves.
From playlist Center of Math Research: the Worldwide Lecture Seminar Series
This video explains what information the gradient provides about a given function. http://mathispower4u.wordpress.com/
From playlist Functions of Several Variables - Calculus
Kiran Kedlaya, The Sato-Tate conjecture and its generalizations
VaNTAGe seminar on March 24, 2020 License: CC-BY-NC-SA Closed captions provided by Jun Bo Lau.
From playlist The Sato-Tate conjecture for abelian varieties
16_2 Evaluating the force and the directional vector differential
Learn how to develop the vector field function and the vector, r, to derive a useful function for the line integral of a vector field.
From playlist Advanced Calculus / Multivariable Calculus
Image measure and substitution rule (Measure Theory Part 15)
Support the channel on Steady: https://steadyhq.com/en/brightsideofmaths Or support me via PayPal: https://paypal.me/brightmaths Or via Ko-fi: https://ko-fi.com/thebrightsideofmathematics Or via Patreon: https://www.patreon.com/bsom Or via other methods: https://thebrightsideofmathematics.
From playlist Measure Theory
C34 Expanding this method to higher order linear differential equations
I this video I expand the method of the variation of parameters to higher-order (higher than two), linear ODE's.
From playlist Differential Equations
11_5_1 Directional Derivative of a Multivariable Function Part 1
Understanding that a partial derivative refers to a rate of change in the direction of a certain axis, we now look at the rate of change in any direction. The direction is indicated by a unit vector, in other words it has a dimension of one and is therefore only its direction is important
From playlist Advanced Calculus / Multivariable Calculus
10 new bets you will always win (8)
Visit http://www.quirkology.com Buy the book UK: https://goo.gl/BKadJg Buy the book US: https://goo.gl/XLTErW Can you find the link to the secret bet? Music: https://cameronwattmusic.wordpress.com
From playlist 10 bets you will always win
C80 Solving a linear DE with Laplace transformations
Showing how to solve a linear differential equation by way of the Laplace and inverse Laplace transforms. The Laplace transform changes a linear differential equation into an algebraical equation that can be solved with ease. It remains to do the inverse Laplace transform to calculate th
From playlist Differential Equations
Modular spectral covers and Hecke eigensheaves... (Lecture 4) by Tony Pantev
Program: Quantum Fields, Geometry and Representation Theory ORGANIZERS : Aswin Balasubramanian, Saurav Bhaumik, Indranil Biswas, Abhijit Gadde, Rajesh Gopakumar and Mahan Mj DATE & TIME : 16 July 2018 to 27 July 2018 VENUE : Madhava Lecture Hall, ICTS, Bangalore The power of symmetries
From playlist Quantum Fields, Geometry and Representation Theory