Geometric group theory | Topology

Curve complex

In mathematics, the curve complex is a simplicial complex C(S) associated to a finite-type surface S, which encodes the combinatorics of simple closed curves on S. The curve complex turned out to be a fundamental tool in the study of the geometry of the Teichmüller space, of mapping class groups and of Kleinian groups. It was introduced by W.J.Harvey in 1978. (Wikipedia).

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Line integral over 2 curves

Free ebook http://tinyurl.com/EngMathYT How to integrate over 2 curves. This example discusses the additivity property of line integrals (sometimes called path integrals).

From playlist Engineering Mathematics

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Surface with Square Cross Sections

Surface with square cross sections and modifiable base: https://www.geogebra.org/m/mcfmabak #GeoGebra #math #geometry #calculus #AugmentedReality

From playlist Calculus: Dynamic Interactives!

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11_3_4 Working towards an equation for a tangent plane to a multivariable function

Further discussion on where a tangent plane to a curve exists and how to calculate it.

From playlist Advanced Calculus / Multivariable Calculus

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11_6_1 Contours and Tangents to Contours Part 1

A contour is simply the intersection of the curve of a function and a plane or hyperplane at a specific level. The gradient of the original function is a vector perpendicular to the tangent of the contour at a point on the contour.

From playlist Advanced Calculus / Multivariable Calculus

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Tangent to curve of vector function example

Free ebook http://tinyurl.com/EngMathYT A tutorial on how to calculate the (unit) tangent vector to a curve of a vector function of one variable.

From playlist Engineering Mathematics

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3D Curves and their Tangents | Intro to Vector-Valued Functions

A space curve, or vector-valued function, is a function with a single input t and multiple outputs x(t), y(t), z(t). In this video we introduce these functions and see how to visualize them in 3D. We then turn to the problem of tangent lines to these types of curves. The definition is mode

From playlist Calculus III: Multivariable Calculus (Vectors, Curves, Partial Derivatives, Multiple Integrals, Optimization, etc) **Full Course **

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Hyperbola 3D Animation | Objective conic hyperbola | Digital Learning

Hyperbola 3D Animation In mathematics, a hyperbola is a type of smooth curve lying in a plane, defined by its geometric properties or by equations for which it is the solution set. A hyperbola has two pieces, called connected components or branches, that are mirror images of each other an

From playlist Maths Topics

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Parametrizing Curves in the Complex Plane 1

Complex Analysis: We give a recipe for parametrizing curves in the complex plane. Line segments are the focus of Part 1.

From playlist Complex Analysis

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The (Coarse) Moduli Space of (Complex) Elliptic Curves | The Geometry of SL(2,Z), Section 1.3

We discuss complex elliptic curves, and describe their moduli space. Richard Borcherd's videos: Riemann-Roch Introduction: https://www.youtube.com/watch?v=uRfbnJ2a-Bs&ab_channel=RichardE.BORCHERDS Genus 1 Curves: https://www.youtube.com/watch?v=NDy4J_noKi8&ab_channel=RichardE.BORCHERDS

From playlist The Geometry of SL(2,Z)

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Hierarchy Hyperbolic Spaces (Lecture – 01) by Jason Behrstock

Geometry, Groups and Dynamics (GGD) - 2017 DATE: 06 November 2017 to 24 November 2017 VENUE: Ramanujan Lecture Hall, ICTS, Bengaluru The program focuses on geometry, dynamical systems and group actions. Topics are chosen to cover the modern aspects of these areas in which research has b

From playlist Geometry, Groups and Dynamics (GGD) - 2017

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Elliptic Curves - Lecture 14b - Elliptic curves over the complex numbers

This video is part of a graduate course on elliptic curves that I taught at UConn in Spring 2021. The course is an introduction to the theory of elliptic curves. More information about the course can be found at the course website: https://alozano.clas.uconn.edu/math5020-elliptic-curves/

From playlist An Introduction to the Arithmetic of Elliptic Curves

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"From Diophantus to Bitcoin: Why Are Elliptic Curves Everywhere?" by Alvaro Lozano-Robledo

This talk was organized by the Number Theory Unit of the Center for Advanced Mathematical Sciences at the American University of Beirut, on November 1st, 2022. Abstract: Elliptic curves are ubiquitous in number theory, algebraic geometry, complex analysis, cryptography, physics, and beyo

From playlist Math Talks

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Louis Funar : Automorphisms of curve and pants complexes in profinite content

Pants complexes of large surfaces were proved to be vigid by Margalit. We will consider convergence completions of curve and pants complexes and show that some weak four of rigidity holds for the latter. Some key tools come from the geometry of Deligne Mumford compactification of moduli sp

From playlist Topology

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Part I: Complex Variables, Lec 5: Integrating Complex Functions

Part I: Complex Variables, Lecture 5: Integrating Complex Functions Instructor: Herbert Gross View the complete course: http://ocw.mit.edu/RES18-008F11 License: Creative Commons BY-NC-SA More information at http://ocw.mit.edu/terms More courses at http://ocw.mit.edu

From playlist MIT Calculus Revisited: Calculus of Complex Variables

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Complex Analysis - Part 18 - Complex Contour Integral

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 Complex Analysis

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Mladen Bestvina: Hyperbolicity in mapping class groups and OutF

The lecture was held within the framework of Follow-up Workshop TP Rigidity. 30.4.2015

From playlist HIM Lectures 2015

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Complex Analysis - Part 24 - Winding Number

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 Complex Analysis

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How long is a curve?? The Arclength Formula in 3D

What is the arclength of a vector-valued function or curve in 3D? In this video we break the length into a sum of little straight lines, we add up the lengths of the straight lines, take a limit and voila, we get an integral formula to compute arclength. We've previously studied arclengt

From playlist Calculus III: Multivariable Calculus (Vectors, Curves, Partial Derivatives, Multiple Integrals, Optimization, etc) **Full Course **

Related pages

Teichmüller space | Kleinian group | Wedge sum | Mathematics | Hyperbolic group | Heegaard splitting | Simplicial complex | Surface (topology) | Mapping class group | Torus | Boundary parallel | Systolic geometry