Pseudo-spectral methods, also known as discrete variable representation (DVR) methods, are a class of numerical methods used in applied mathematics and scientific computing for the solution of partial differential equations. They are closely related to spectral methods, but complement the basis by an additional pseudo-spectral basis, which allows representation of functions on a quadrature grid. This simplifies the evaluation of certain operators, and can considerably speed up the calculation when using fast algorithms such as the fast Fourier transform. (Wikipedia).
Wei Zhao: Localized radial basis functions based pseudo spectral...
This is joint work with Yiuchung Hon and Martin Stoll. Spectral/pseudo-spectral methods based on high order polynomials have been successfully developed for solving partial differential and integral equations. In this talk, we will present the use of local radial basis functions-based pseu
From playlist HIM Lectures: Trimester Program "Multiscale Problems"
What is the Fourier Transform?
In this video, we'll look at the fourier transform from a slightly different perspective than normal, and see how it can be used to estimate functions. Learn about the Fourier series here: http://youtu.be/kP02nBNtjrU
From playlist Fourier
How to find all of the solutions to an equation as well as within the unit circle
👉 Learn how to solve trigonometric equations. There are various methods that can be used to evaluate trigonometric identities, they include by factoring out the GCF and simplifying the factored equation. Another method is to use a trigonometric identity to reduce and then simplify the give
From playlist Solve Trigonometric Equations
Find all the solutions of trig equation with cotangent
👉 Learn how to solve trigonometric equations. There are various methods that can be used to evaluate trigonometric equations, they include by factoring out the GCF and simplifying the factored equation. Another method is to use a trigonometric identity to reduce and then simplify the given
From playlist Solve Trigonometric Equations
Parametric vs Nonparametric Spectrum Estimation
http://AllSignalProcessing.com for more great signal-processing content: ad-free videos, concept/screenshot files, quizzes, MATLAB and data files. Introduces parametric (model-based) and nonparametric (Fourier-based) approaches to estimation of the power spectrum.
From playlist Estimation and Detection Theory
Decay of quantum systems analysed with pseudomodes of reservoir structures by Barry Garraway
Open Quantum Systems DATE: 17 July 2017 to 04 August 2017 VENUE: Ramanujan Lecture Hall, ICTS Bangalore There have been major recent breakthroughs, both experimental and theoretical, in the field of Open Quantum Systems. The aim of this program is to bring together leaders in the Open Q
From playlist Open Quantum Systems
Simone WARZEL - Mathematical challenges and results related to fractional quantum systems
https://ams-ems-smf2022.inviteo.fr/
From playlist International Meeting 2022 AMS-EMS-SMF
Serguei Ivachkovitch - Method of pseudoholomorphic curves and applications (Part 1)
The method of « pseudoholomorphic » curves proved itself to be extremely useful in different fields. In symplectic topology, for instance Gromov’s Nonsqueezing Theorem, Arnold’s conjecture and the Floer homology, the Gromov-Witten invariants. In complex analysis and geometry, for instane p
From playlist École d’été 2012 - Feuilletages, Courbes pseudoholomorphes, Applications
10. Szemerédi's graph regularity lemma V: hypergraph removal and spectral proof
MIT 18.217 Graph Theory and Additive Combinatorics, Fall 2019 Instructor: Yufei Zhao View the complete course: https://ocw.mit.edu/18-217F19 YouTube Playlist: https://www.youtube.com/playlist?list=PLUl4u3cNGP62qauV_CpT1zKaGG_Vj5igX In this first half of this lecture, Prof. Zhao shows how
From playlist MIT 18.217 Graph Theory and Additive Combinatorics, Fall 2019
Anton Arnold: Modal based hypocoercivity methods on the torus and the real line with application...
CIRM VIRTUAL EVENT Recorded during the meeting "Kinetic Equations: from Modeling, Computation to Analysis" the March 22, 2021 by the Centre International de Rencontres Mathématiques (Marseille, France) Filmmaker: Guillaume Hennenfent Find this video and other talks given by worldwide m
From playlist Virtual Conference
The Fourier Transform and Derivatives
This video describes how the Fourier Transform can be used to accurately and efficiently compute derivatives, with implications for the numerical solution of differential equations. Book Website: http://databookuw.com Book PDF: http://databookuw.com/databook.pdf These lectures follow
From playlist Fourier
Serguei Ivachkovitch - Method of pseudoholomorphic curves and applications (Part 4)
The method of « pseudoholomorphic » curves proved itself to be extremely useful in different fields. In symplectic topology, for instance Gromov’s Nonsqueezing Theorem, Arnold’s conjecture and the Floer homology, the Gromov-Witten invariants. In complex analysis and geometry, for instane p
From playlist École d’été 2012 - Feuilletages, Courbes pseudoholomorphes, Applications
Find all the solutions to a simple trigonometric equation
👉 Learn how to solve trigonometric equations. There are various methods that can be used to evaluate trigonometric identities, they include by factoring out the GCF and simplifying the factored equation. Another method is to use a trigonometric identity to reduce and then simplify the give
From playlist Solve Trigonometric Equations
Gallay () / 16.11.2019 Estimations pseudo-spectrales et stabilité des tourbillons plans Lorsqu'on étudie la stabilité des écoulements parallèles ou tourbillonnaires en mécanique des fluides, on observe que les effets de transport renforcent considérablement la dissipation visqueuse. C
From playlist BOURBAKI - 2019
Semiclassical Eigenfunction Estimates - Melissa Tacy
Semiclassical Eigenfunction Estimates - Melissa Tacy Institute for Advanced Study October 29, 2010 ANALYSIS/MATHEMATICAL PHYSICS SEMINAR Concentration phenomena for Laplacian eigenfunctions can be studied by obtaining estimates for their LpLp growth. By considering eigenfunctions as quasi
From playlist Mathematics
GRCon19 - A decade of gr-specest -- Free Spectral Estimation! by Martin Braun
A decade of gr-specest -- Free Spectral Estimation! by Martin Braun 10 years ago, the Communications Engineering Lab (CEL) of KIT, Germany, published an out-of-tree module for GNU Radio: The spectral estimation toolbox (gr-specest). Today, it’s still around and works even with the latest
From playlist GRCon 2019
Talk by Rahul Dalal (University of California, Berkeley, USA)
Statistics of Automorphic Representations Through the Stable Trace Formula
From playlist Seminars: Representation Theory and Number Theory
Spectral properties of random perturbations of Toeplitz matrices... by Anirban Basak
PROGRAM: ADVANCES IN APPLIED PROBABILITY ORGANIZERS: Vivek Borkar, Sandeep Juneja, Kavita Ramanan, Devavrat Shah, and Piyush Srivastava DATE & TIME: 05 August 2019 to 17 August 2019 VENUE: Ramanujan Lecture Hall, ICTS Bangalore Applied probability has seen a revolutionary growth in resear
From playlist Advances in Applied Probability 2019
How to find all of the solutions of an equation with secant
👉 Learn how to solve trigonometric equations. There are various methods that can be used to evaluate trigonometric identities, they include by factoring out the GCF and simplifying the factored equation. Another method is to use a trigonometric identity to reduce and then simplify the give
From playlist Solve Trigonometric Equations