Energy
The term energy has an important physical meaning in physics and is an extremely useful concept. A much more abstractmathematical generalization is defined as follows. Let 
be a Space with Measure 
and let
be a real function on the Product Space 
. When
 |  |  | |
|  |
exists for measures
, 
is called the Mutual Energy and 
is called theEnergy.See also Dirichlet Energy, Mutual Energy
References
Iyanaga, S. and Kawada, Y. (Eds.). ``General Potential.'' §335.B in Encyclopedic Dictionary of Mathematics. Cambridge, MA: MIT Press, p. 1038, 1980.
- Galois Theory
- Gambler's Ruin
- Game
- Game Expectation
- Game Matrix
- Game of Life
- Game Theory
- Gamma Distribution
- Gamma Function
- Gamma Group
- Gamma-Modular
- Gamma Statistic
- Garage Door
- Garman-Kohlhagen Formula
- Gate Function
- Gauche Conic
- Gaullist Cross
- Gauss-Bodenmiller Theorem
- Gauss-Bolyai-Lobachevsky Space
- Gauss-Bonnet Formula
- Gauss-Bonnet Theorem
- Gauss Equations
- Gaussian Approximation Algorithm
- Gaussian Bivariate Distribution
- Gaussian Brackets