Theta functions

Theta function of a lattice

In mathematics, the theta function of a lattice is a function whose coefficients give the number of vectors of a given norm. (Wikipedia).

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Modular forms: Theta functions in higher dimensions

This lecture is part of an online graduate course on modular forms. We study theta functions of even unimodular lattices, such as the root lattice of the E8 exceptional Lie algebra. As examples we show that one cannot "her the shape of a drum", and calculate the number of minimal vectors

From playlist Modular forms

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Counting points on the E8 lattice with modular forms (theta functions) | #SoME2

In this video, I show a use of modular forms to answer a question about the E8 lattice. This video is meant to serve as an introduction to theta functions of lattices and to modular forms for those with some knowledge of vector spaces and series. -------------- References: (Paper on MIT

From playlist Summer of Math Exposition 2 videos

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Lecture 9.1 Periodic functions

Periodic functions are functions that repeat themselves at regular intervals. In this lecture, we discuss the properties of periodic functions.

From playlist MATH2018 Engineering Mathematics 2D

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Etale Theta - Part 02 - Properties of the Arithmetic Jacobi Theta Function

In this video we talk about Proposition 1.4 of Etale Theta. This came out of conversations with Emmanuel Lepage. Formal schemes in the Stacks Project: http://stacks.math.columbia.edu/tag/0AIL

From playlist Etale Theta

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Calculus - Find the limit of a function using epsilon and delta

This video shows how to use epsilon and delta to prove that the limit of a function is a certain value. This particular video uses a linear function to highlight the process and make it easier to understand. Later videos take care of more complicated functions and using epsilon and delta

From playlist Calculus

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Modular forms: Theta functions

This lecture is part of an online graduate course on modular forms. We show that the theta function of a 1-dimensional lattice is a modular form using the Poisson summation formula, and use this to prove the functional equation of the Riemann zeta function. For the other lectures in th

From playlist Modular forms

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Spherical Harmonics Example

We calculate the functional form of some example spherical harmonics, and discuss their angular dependence.

From playlist Quantum Mechanics Uploads

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Trig Functions on the Unit Circle

How do these 6 trigonometric functions fit together on the unit circle? Downloadable copy for your refridgerator: http://bit.ly/YT-TrigFunctions

From playlist Trigonometry

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The Lambert W Function Introduction

This function comes up as a solution to equations ranging from pure math to quantum physics to biology. In this video, I introduce the concepts behind the function and give some sample calculations. There's lots more to this function, so explore it on your own if you're interested.

From playlist Math

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Sphere packings in 8 dimensions (after Maryna Viazovska)

The is a math talk about the best possible sphere packing in 8 dimensions. It was an open problem for many years to show that the best 8-dimensional sphere packing is given by the E8 lattice. We describe the solution to this found by Maryna Viazovska, building on work of Henry Cohn and Noa

From playlist Math talks

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Melting of three-sublattice and easy-axis antiferromagnets on triangular and kagome lattices

New questions in quantum field theory from condensed matter theory Talk Title : Melting of three­sublattice order in easy­axis antiferromagnets on triangular and kagome lattices by Kedar Damle URL: http://www.icts.res.in/discussion_meeting/qft2015/ Description:- The last couple of decade

From playlist New questions in quantum field theory from condensed matter theory

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Arithmetic theta series - Stephan Kudla

Workshop on Representation Theory and Analysis on Locally Symmetric Spaces Topic: Arithmetic theta series Speaker: Stephan Kudla Affiliation: University of Toronto Date: March 8, 2018 For more videos, please visit http://video.ias.edu

From playlist Mathematics

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CTNT 2022 - Definite orthogonal modular forms in rank 4 (by Eran Assaf)

This video is one of the special guess talks or conference talks that took place during CTNT 2022, the Connecticut Summer School and Conference in Number Theory. Note: not every special guest lecture or conference lecture was recorded. More about CTNT: https://ctnt-summer.math.uconn.edu/

From playlist CTNT 2022 - Conference lectures and special guest lectures

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Sylvia Serfaty - 1/4 Systems with Coulomb Interactions: Mean-Field Limits and Statistical (...)

We will discuss large systems of particles with Coulomb-type repulsion. The first part of the course will mention the question of mean-field for the dynamics of such systems via a modulated energy approach. The second part will be more expanded and concern the statistical mechanics of suc

From playlist Sylvia Serfaty - Systems with Coulomb Interactions : Mean-field Limits and Statistical Mechanics

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Multiple Phase Transitions in a System of Hard Core Rotors on a Lattice (Lecture 3) by Deepak Dhar

INFOSYS-ICTS CHANDRASEKHAR LECTURES MULTIPLE PHASE TRANSITIONS IN A SYSTEM OF HARD CORE ROTORS ON A LATTICE SPEAKER: Deepak Dhar (Distinguished Emeritus Professor and NASI-Senior Scientist, IISER-Pune, India) VENUE: Ramanujan Lecture Hall and Online DATE & TIME: Lecture 1: Monday, D

From playlist Infosys-ICTS Chandrasekhar Lectures

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Random Walks (Lecture - 02) by Abhishek Dhar

Bangalore School on Statistical Physics - VIII DATE: 28 June 2017 to 14 July 2017 VENUE: Ramanujan Lecture Hall, ICTS, Bengaluru This advanced level school is the eighth in the series. This is a pedagogical school, aimed at bridging the gap between masters-level courses and topics in s

From playlist Bangalore School on Statistical Physics - VIII

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Introduction to the Dirac Delta Function

Please Subscribe here, thank you!!! https://goo.gl/JQ8Nys Introduction to the Dirac Delta Function

From playlist Differential Equations

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J-B Bost - Theta series, infinite rank Hermitian vector bundles, Diophantine algebraization (Part1)

In the classical analogy between number fields and function fields, an Euclidean lattice (E,∥.∥) may be seen as the counterpart of a vector bundle V on a smooth projective curve C over some field k. Then the arithmetic counterpart of the dimension h0(C,V)=dimkΓ(C,V) of the space of section

From playlist Ecole d'été 2017 - Géométrie d'Arakelov et applications diophantiennes

Related pages

Upper half-plane | Unimodular lattice | Modular form | Theta function | Mathematics | Lattice (discrete subgroup) | Holomorphic function