Search for tag: "hyperbolic"

Timothy Riley: Subgroup Distortion in Hyperbolic Groups

Geometric and Asymptotic Group Theory with Applications (GAGTA 14) Workshop (07 - 11 June) Timothy Riley, Cornell University - Subgroup Distortion in Hyperbolic Groups 8 June 2021 This recording is…

From  Sophia Martin on June 16th, 2021 0 likes 40 plays 0  

GAGTA 14 Chloe Perin

7-11 June 2021, GAGTA 14 2021 Chloe Perin (Hebrew University of Jerusalem) Homogeneity in torsion-free hyperbolic groups This recording is in the process of being subtitled. Subtitles will be…

From  Anna Munro on June 16th, 2021 0 likes 15 plays 0  

Hyperbolic PDE Analytical methods Example 2: Separation of variables example 9.14

Step by step solution of both cases from example 9.14. This example uses the method of separation of variables on the wave equation.

From  Daniel Friedrich on March 1st, 2021 0 likes 62 plays 0  

Hyperbolic PDE Analytical methods Part 6: Separation of variables

This video introduces the method of separation of variables or separated solutions for the wave equation.

From  Daniel Friedrich on March 1st, 2021 0 likes 65 plays 0  

Hyperbolic PDE Analytical methods Example 1: Characteristics example 9.13

Step by step solution of example 9.13 which covers a wave equation problem solved by the method of characteristics.

From  Daniel Friedrich on March 1st, 2021 0 likes 73 plays 0  

Partial Differential Equations Lecture 10 - Boundary Conditions

In the 2nd part of the lecture we look at boundary conditions for systems of hyperbolic equations.

From  David Ingram on February 26th, 2021 0 likes 41 plays 0  

Hyperbolic PDE Analytical methods Part 4: Method of characteristics

Introduce the method of characteristics for hyperbolic PDEs

From  Daniel Friedrich on February 22nd, 2021 0 likes 89 plays 0  

Partial Differential Equations Lecture 9 - Results

Here we look in detail at the results from the test problem and discuss dispersive and dissipative errors.

From  David Ingram on February 16th, 2021 0 likes 35 plays 0  

Partial Differential Equations Lecture 9 - MacCormack method in 2D

This part of the lecture develops a 2D solver using the method of Fractional Steps and the MacCormack scheme and applies it to a test problem

From  David Ingram on February 16th, 2021 0 likes 44 plays 0  

Partial Differential Equations Lecture 9 - Two and three dimensional solvers

In this lecture we look at operator splitting and the method of fractional steps which can be used to solve 2 and 3D problems with 1D schemes.

From  David Ingram on February 16th, 2021 0 likes 43 plays 0  

Hyperbolic PDE Analytical methods Part 3: D'Alembert solution

This video derives the d'Alembert solution for the hyperbolic wave equation.

From  Daniel Friedrich on February 16th, 2021 0 likes 86 plays 0  

Hyperbolic PDE Analytical methods Part 2: Vibrating string and linear advection

This video shows that two expressions are solutions to the wave equation for two different conditions: 1) the fundamental mode of the vibrating string and 2) the linear advection problem.

From  Daniel Friedrich on February 16th, 2021 0 likes 76 plays 0  

Hyperbolic PDE Analytical methods Part 1: Introduction

Introduction to the hyperbolic wave equation and derivation of the 1D wave equation.

From  Daniel Friedrich on February 16th, 2021 0 likes 83 plays 0  

Partial Differential Equations, Lecture 8c: MUSCL Schemes

We look briefly at how MUSCL schemes use weighted interpolation of fluxes as an alternative to the TVD schemes.

From  David Ingram on February 15th, 2021 0 likes 48 plays 0  

Partial Differential Equations, Lecture 8b: TVD MacCormack

Here we implement the MacCormack scheme with a TVD correction in Matlab and apply it to a test problem

From  David Ingram on February 15th, 2021 0 likes 52 plays 0  

Partial Differential Equations, Lecture 8a: Monotone Methods for Conservation Laws

In this lecture we look at schemes which are not prone to producing the spurious "Gibbs" oscillations we saw in the last lecture. We start b talking about TVD schemes

From  David Ingram on February 15th, 2021 0 likes 41 plays 0