The triangular inequalities are the inequalities
 |
for real numbers 
(Messiah 1962, p. 1056). If these inequalities
hold for any one permutation of 
, they hold for all permutations.
Triangular Inequalities
See also
Triangle Inequalities, Triangle Inequality, Wigner 3j-Symbol, Wigner 6j-SymbolExplore with Wolfram|Alpha
References
Messiah, A. Quantum Mechanics, Vol. 2. Amsterdam, Netherlands: North-Holland, 1962.Referenced on Wolfram|Alpha
Triangular InequalitiesCite this as:
Weisstein, Eric W. "Triangular Inequalities." From MathWorld--A Wolfram Web Resource. https://mathworld.wolfram.com/TriangularInequalities.html