# 6-j symbol

Wigner's 6-j symbols were introduced by Eugene Paul Wigner in 1940 and published in 1965. They are defined as a sum over products of four Wigner 3-j symbols, The summation is over all six mi allowed by the selection rules of the 3-j symbols. They are closely related to the Racah W-coefficients, which are used for recoupling 3 angular momenta, although Wigner 6-j symbols have higher symmetry and therefore provide a more efficient means of storing the recoupling coefficients. Their relationship is given by: (Wikipedia).

Identifying Rational Numbers

u09_l1_t3_we5 Identifying Rational Numbers

From playlist Developmental Math 2

Dot Product of the Vectors u = 3i + 2j + 4k and v = -i + j

Please Subscribe here, thank you!!! https://goo.gl/JQ8Nys Dot Product of the Vectors u = 3i + 2j + 4k and v = -i + j

From playlist Calculus

SHSAT 7 - Math Worked Examples (#66-#69)

https://sites.google.com/site/teachshsat/ another series of worked examples from the SHSAT booklet

From playlist SHSAT - 8th Grade Test 1

#5 Set Interval Notation Practice

Practice using set interval notation

From playlist Middle School This Year

Ex: Evaluate Expression in the Form x^2, x^3, and x^4 with Negative Fractions

This video explains how to evaluate an expression for given values of the variables. http://mathispower4u.com

From playlist Variables and Variable Expressions

Write a 2D Vector as a Linear Combination of the Unit Vectors i and j

This video explains how to write a 2D vector as a linear combination of i and j given the graph of the vector.

From playlist Spanning Sets and Subspaces

Introduction to number theory lecture 35 Jacobi symbol

This lecture is part of my Berkeley math 115 course "Introduction to number theory" For the other lectures in the course see https://www.youtube.com/playlist?list=PL8yHsr3EFj53L8sMbzIhhXSAOpuZ1Fov8 We define the Jacobi symbol and prove its basic properties, and show how to calculate it fa

From playlist Introduction to number theory (Berkeley Math 115)

MATH2018 Lecture 2.3 Gradient and Directional Derivative

We introduce the concepts of the gradient and directional derivative, which tell us how a scalar field varies in space.

From playlist MATH2018 Engineering Mathematics 2D

Calculus 5.2b - The Notation

Some comments on the notation used in Calculus, and how the notation relates to a function that it represents.

From playlist Calculus Chapter 5 (selected videos)

Ex: Evaluate an Expression in the Form Ax+By

This video explains how to evaluate an expression for given values of the variables. http://mathispower4u.com

From playlist Variables and Variable Expressions

Mod-01 Lec-24ex(C) Magnetism - Worked Examples (Continued)

Condensed Matter Physics by Prof. G. Rangarajan, Department of Physics, IIT Madras. For more details on NPTEL visit http://nptel.iitm.ac.in

Kronecker delta and Levi-Civita symbol | Lecture 7 | Vector Calculus for Engineers

Definition of the Kronecker delta and the Levi-Civita symbol (sometimes called the permutation symbol or Levi-Civita tensor). The relationship between the Kronecker delta and the Levi-Civita symbol is discussed. Join me on Coursera: https://www.coursera.org/learn/vector-calculus-engin

From playlist Vector Calculus for Engineers

What is a Tensor? Lesson 25: Review of Determinants

What is a Tensor? Lesson 25: Review of Determinants This lesson is purely a review of a mathematical topic that we will need for our upcoming work regarding exterior product spaces and the exterior algebra. If you are solid on determinants then you can skip this lesson

From playlist What is a Tensor?

Adventures in Automata with a Theorem-Prover

Public Lecture by Jeffrey Shallit (University of Waterloo) Here is the weblink for the publicly-available prover https://cs.uwaterloo.ca/~shallit/walnut.html

From playlist Public Lectures

Eureka Math Grade 3 Module 5 Lesson 18

EngageNY/Eureka Math Grade 3 Module 5 Lesson 18 For more videos, answer keys, and other resources, please visit http://EMBARC.online PLEASE leave a message if a video has a technical difficulty (audio separating from the video, writing not showing up, etc). Occasionally, Explain Everythin

From playlist EngageNY Grade 3 Module 5

Admissible Representations of a Connected Reductive P-Adic Groups....by Marie Vigneras

Program Recent developments around p-adic modular forms (ONLINE) ORGANIZERS: Debargha Banerjee (IISER Pune, India) and Denis Benois (University of Bordeaux, France) DATE: 30 November 2020 to 04 December 2020 VENUE: Online This is a follow up of the conference organized last year arou

SHSAT symbol functions 4

A practice problem from the SHSAT that uses a symbol to express a function

From playlist SHSAT - 8th Grade Samples

Lec 3 | MIT 6.451 Principles of Digital Communication II

Hard-decision and Soft-decision Decoding View the complete course: http://ocw.mit.edu/6-451S05 License: Creative Commons BY-NC-SA More information at http://ocw.mit.edu/terms More courses at http://ocw.mit.edu

From playlist MIT 6.451 Principles of Digital Communication II