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  2. Einstein notation - Wikipedia

    en.wikipedia.org/wiki/Einstein_notation

    In mathematics, especially the usage of linear algebra in mathematical physics and differential geometry, Einstein notation (also known as the Einstein summation convention or Einstein summation notation) is a notational convention that implies summation over a set of indexed terms in a formula, thus achieving brevity.

  3. List of formulas in Riemannian geometry - Wikipedia

    en.wikipedia.org/wiki/List_of_formulas_in...

    Einstein notation is used throughout this article. This article uses the "analyst's" sign convention for Laplacians, except when noted otherwise.

  4. Classical electromagnetism and special relativity - Wikipedia

    en.wikipedia.org/wiki/Classical_electromagnetism...

    This section uses Einstein notation, including Einstein summation convention. See also Ricci calculus for a summary of tensor index notations, and raising and lowering indices for definition of superscript and subscript indices, and how to switch between them. The Minkowski metric tensor η here has metric signature (+ − − −).

  5. Introduction to the mathematics of general relativity - Wikipedia

    en.wikipedia.org/wiki/Introduction_to_the...

    In Einstein's theory of general relativity, the Schwarzschild metric (also Schwarzschild vacuum or Schwarzschild solution), is a solution to the Einstein field equations which describes the gravitational field outside a spherical mass, on the assumption that the electric charge of the mass, the angular momentum of the mass, and the universal ...

  6. Light-cone coordinates - Wikipedia

    en.wikipedia.org/wiki/Light-cone_coordinates

    In a light-cone coordinate system, two of the coordinates are null vectors and all the other coordinates are spatial. The former can be denoted + and and the latter .. Assume we are working with a (d,1) Lorentzian signature.

  7. Caitlin Clark stuffs stat sheet as Indiana Fever beat Atlanta ...

    www.aol.com/caitlin-clark-stuffs-stat-sheet...

    Indiana Fever guard Caitlin Clark (22) goes in for a lay-up against Atlanta Dream forward Cheyenne Parker-Tyus (32) on Thursday, May 9, 2024, during the preseason game against the Atlanta Dream at ...

  8. Ricci calculus - Wikipedia

    en.wikipedia.org/wiki/Ricci_calculus

    For compactness and convenience, the Ricci calculus incorporates Einstein notation, which implies summation over indices repeated within a term and universal quantification over free indices. Expressions in the notation of the Ricci calculus may generally be interpreted as a set of simultaneous equations relating the components as functions ...

  9. Holy Sheet: Apply Einstein’s ‘8th wonder of the world’ to ...

    www.aol.com/holy-sheet-apply-einstein-8th...

    To become this achievable millionaire next door, you don’t have to win the lottery, or have an IQ as high as Einstein’s. All you have to understand is one investment concept called compound ...