Non-linear physics is the study of systems where the output is not directly proportional to the input. Unlike linear systems, which follow simple, predictable relationships, non-linear systems exhibit ...

A polynomial is an algebraic expression containing a series of terms joined together by addition or subtraction. In algebra, a term is a number times a variable; for example, 4x 2 + x - 6y is a ...

In their STOC paper from 2001, Jerrum et al. showed how to approximate the permanent of an n by n matrix with non-negative entries within any specified ratio in time polynomial in n. Their approach ...