Theorems in measure theory | Probability theorems

Structure theorem for Gaussian measures

In mathematics, the structure theorem for Gaussian measures shows that the abstract Wiener space construction is essentially the only way to obtain a strictly positive Gaussian measure on a separable Banach space. It was proved in the 1970s by Kallianpur–Sato–Stefan and Dudley––le Cam. There is the earlier result due to H. Satô (1969) which proves that "any Gaussian measure on a separable Banach space is an abstract Wiener measure in the sense of L. Gross". The result by Dudley et al. generalizes this result to the setting of Gaussian measures on a general topological vector space. (Wikipedia).

Video thumbnail

Joe Neeman: Gaussian isoperimetry and related topics II

The Gaussian isoperimetric inequality gives a sharp lower bound on the Gaussian surface area of any set in terms of its Gaussian measure. Its dimension-independent nature makes it a powerful tool for proving concentration inequalities in high dimensions. We will explore several consequence

From playlist Winter School on the Interplay between High-Dimensional Geometry and Probability

Video thumbnail

Joe Neeman: Gaussian isoperimetry and related topics III

The Gaussian isoperimetric inequality gives a sharp lower bound on the Gaussian surface area of any set in terms of its Gaussian measure. Its dimension-independent nature makes it a powerful tool for proving concentration inequalities in high dimensions. We will explore several consequence

From playlist Winter School on the Interplay between High-Dimensional Geometry and Probability

Video thumbnail

Joe Neeman: Gaussian isoperimetry and related topics I

The Gaussian isoperimetric inequality gives a sharp lower bound on the Gaussian surface area of any set in terms of its Gaussian measure. Its dimension-independent nature makes it a powerful tool for proving concentration inequalities in high dimensions. We will explore several consequence

From playlist Winter School on the Interplay between High-Dimensional Geometry and Probability

Video thumbnail

Multivariate Gaussian distributions

Properties of the multivariate Gaussian probability distribution

From playlist cs273a

Video thumbnail

(PP 6.6) Geometric intuition for the multivariate Gaussian (part 1)

How to visualize the effect of the eigenvalues (scaling), eigenvectors (rotation), and mean vector (shift) on the density of a multivariate Gaussian.

From playlist Probability Theory

Video thumbnail

(PP 6.7) Geometric intuition for the multivariate Gaussian (part 2)

How to visualize the effect of the eigenvalues (scaling), eigenvectors (rotation), and mean vector (shift) on the density of a multivariate Gaussian.

From playlist Probability Theory

Video thumbnail

(PP 6.3) Gaussian coordinates does not imply (multivariate) Gaussian

An example illustrating the fact that a vector of Gaussian random variables is not necessarily (multivariate) Gaussian.

From playlist Probability Theory

Video thumbnail

(PP 6.4) Density for a multivariate Gaussian - definition and intuition

The density of a (multivariate) non-degenerate Gaussian. Suggestions for how to remember the formula. Mathematical intuition for how to think about the formula.

From playlist Probability Theory

Video thumbnail

(PP 6.5) Affine property, Constructing Gaussians, and Sphering

Any affine transformation of a (multivariate) Gaussian random variable is (multivariate) Gaussian. How to construct any (multivariate) Gaussian using an affine transformation of standard normals. How to "sphere" a Gaussian, i.e. transform it into a vector of independent standard normals.

From playlist Probability Theory

Video thumbnail

Minerva Lectures 2013 - Assaf Naor Talk 1: An introduction to the Ribe program

For more information, please see: http://www.math.princeton.edu/events/seminars/minerva-lectures/minerva-lecture-i-introduction-ribe-program

From playlist Minerva Lectures - Assaf Naor

Video thumbnail

Complex Stochastic Models and their Applications by Subhroshekhar Ghosh

PROGRAM: TOPICS IN HIGH DIMENSIONAL PROBABILITY ORGANIZERS: Anirban Basak (ICTS-TIFR, India) and Riddhipratim Basu (ICTS-TIFR, India) DATE & TIME: 02 January 2023 to 13 January 2023 VENUE: Ramanujan Lecture Hall This program will focus on several interconnected themes in modern probab

From playlist TOPICS IN HIGH DIMENSIONAL PROBABILITY

Video thumbnail

Seminar In the Analysis and Methods of PDE (SIAM PDE): Andrea R. Nahmod

Title: Gibbs measures and propagation of randomness under the flow of nonlinear dispersive PDE Date: Thursday, May 5, 2022, 11:30 am EDT Speaker: Andrea R. Nahmod, University of Massachusetts Amherst The COVID-19 pandemic and consequent social distancing call for online venues of research

From playlist Seminar In the Analysis and Methods of PDE (SIAM PDE)

Video thumbnail

Marek Biskup: Extreme points of two dimensional discrete Gaussian free field part 3

This lecture was held during winter school (01.19.2015 - 01.23.2015)

From playlist HIM Lectures 2015

Video thumbnail

Paul Hand - Signal Recovery with Generative Priors - IPAM at UCLA

Recorded 29 November 2022. Paul Hand of Northeastern University presents "Signal Recovery with Generative Priors" at IPAM's Multi-Modal Imaging with Deep Learning and Modeling Workshop. Abstract: Recovering images from very few measurements is an important task in imaging problems. Doing s

From playlist 2022 Multi-Modal Imaging with Deep Learning and Modeling

Video thumbnail

Large deviations theory applied to large scale (...) - P. Reimberg - Workshop 1 - CEB T3 2018

Paulo Reimberg (IPhT) / 20.09.2018 Large deviations theory applied to large scale structure cosmology ---------------------------------- Vous pouvez nous rejoindre sur les réseaux sociaux pour suivre nos actualités. Facebook : https://www.facebook.com/InstitutHenriPoincare/ Twitter : ht

From playlist 2018 - T3 - Analytics, Inference, and Computation in Cosmology

Video thumbnail

Masha Gordina: Stochastic analysis and geometric functional inequalities

We will survey different methods of proving functional inequalities for hypoelliptic diffusions and the corresponding heat kernels. Some of these methods rely on geometric methods such as curvature-dimension inequalities (due to Baudoin-Garofalo), and some are probabilistic such as couplin

From playlist Trimester Seminar Series on the Interplay between High-Dimensional Geometry and Probability

Video thumbnail

Two manifestations of rigidity in point sets: forbidden regions... by Subhroshekhar Ghosh

PROGRAM :UNIVERSALITY IN RANDOM STRUCTURES: INTERFACES, MATRICES, SANDPILES ORGANIZERS :Arvind Ayyer, Riddhipratim Basu and Manjunath Krishnapur DATE & TIME :14 January 2019 to 08 February 2019 VENUE :Madhava Lecture Hall, ICTS, Bangalore The primary focus of this program will be on the

From playlist Universality in random structures: Interfaces, Matrices, Sandpiles - 2019

Video thumbnail

On the (unreasonable) effectiveness of compressive imaging – Ben Adcock, Simon Fraser University

This workshop - organised under the auspices of the Isaac Newton Institute on “Approximation, sampling and compression in data science” — brings together leading researchers in the general fields of mathematics, statistics, computer science and engineering. About the event The workshop ai

From playlist Mathematics of data: Structured representations for sensing, approximation and learning

Video thumbnail

(PP 6.2) Multivariate Gaussian - examples and independence

Degenerate multivariate Gaussians. Some sketches of examples and non-examples of Gaussians. The components of a Gaussian are independent if and only if they are uncorrelated.

From playlist Probability Theory

Video thumbnail

Andrew Thomas (7/1/2020): Functional limit theorems for Euler characteristic processes

Title: Functional limit theorems for Euler characteristic processes Abstract: In this talk we will present functional limit theorems for an Euler Characteristic process–the Euler Characteristics of a filtration of Vietoris-Rips complexes. Under this setup, the points underlying the simpli

From playlist AATRN 2020

Related pages

Abstract Wiener space | Strictly positive measure | Hilbert space | Banach space | Mathematics | Canonical form | Separable space | Cylinder set measure | Topological vector space | Gaussian measure