1. Mathematics

2. Physics

A reduction formula is used to represent some expression in a simpler form.

It may refer to:

Mathematics

• Formulas of reduction, the decomposition of multiple integrals
• Integration by reduction formulae, expressing an integral in terms of the same integral but in lower powers

Physics

• LSZ reduction formula, a method to calculate S-matrix elements from the time-ordered correlation functions of a quantum field theory

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