Double Contraction Relation
A Tensor 
is said to satisfy the double contraction relation when
This equation is satisfied by
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where the hat denotes zero trace, symmetric unit Tensors. These Tensors are used todefine the Spherical Harmonic Tensor.See also Spherical Harmonic Tensor, Tensor
References
Arfken, G. ``Alternating Series.'' Mathematical Methods for Physicists, 3rd ed. Orlando, FL: Academic Press, p. 140, 1985.
- Bernoulli Number
- Bernoulli Polynomial
- Bernoulli's Paradox
- Bernoulli's Theorem
- Bernoulli Trial
- Bernstein-Bézier Curve
- Bernstein Minimal Surface Theorem
- Bernstein Polynomial
- Bernstein's Constant
- Bernstein's Inequality
- Bernstein's Polynomial Theorem
- Bernstein-Szegö Polynomials
- Berry-Osseen Inequality
- Berry Paradox
- Bertelsen's Number
- Bertini's Theorem
- Bertrand Curves
- Bertrand's Paradox
- Bertrand's Postulate
- Bertrand's Problem
- Bertrand's Test
- Bertrand's Theorem
- Besov Space
- Bessel Differential Equation
- Bessel Function