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What (who) is QCD sum rules - definition
QCD sum rules
In quantum chromodynamics, the confining and strong coupling nature of the theory means that conventional perturbative techniques often fail to apply. The QCD sum rules (or Shifman–Vainshtein–Zakharov sum rules) are a way of dealing with this.
Sum rules (quantum field theory)
RELATION BETWEEN STATIC AD DYNAMIC QUANTITIES
Sum rules (Quantum Field Theory)
In quantum field theory, a sum rule is a relation between a static quantity and an integral over a dynamical quantity. Therefore, they have a form such as:
zero-sum game
MATHEMATICAL REPRESENTATION OF A SITUATION IN WHICH EACH PARTICIPANT'S GAIN OR LOSS OF UTILITY IS EXACTLY BALANCED BY THE LOSSES OR GAINS OF THE UTILITY OF THE OTHER PARTICIPANTS
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If you refer to a situation as a zero-sum game, you mean that if one person gains an advantage from it, someone else involved must suffer an equivalent disadvantage.
They believe they're playing a zero-sum game, where both must compete for the same paltry resources.
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