Gives a lower bound for the inner product , where is a linear elliptic real differential operator of order , and has compact support.
Gårding's Inequality
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References
Knapp, A. W. "Group Representations and Harmonic Analysis, Part II." Not. Amer. Math. Soc. 43, 537-549, 1996.Referenced on Wolfram|Alpha
Gårding's InequalityCite this as:
Weisstein, Eric W. "Gårding's Inequality." From MathWorld--A Wolfram Web Resource. https://mathworld.wolfram.com/GardingsInequality.html