计数可分解的多元多项式
Counting decomposable multivariate polynomials
摘要:
一个多项式f(域上的多变量)是可分解的,如果f = g(h),g的次数至少为2。我们确定的维度(在一个代数闭域)的一组可分解的,和一个近似的数量超过一个有限域。在我们的近似值的相对误差是指数衰减的输入大小。
英文摘要:
A polynomial f (multivariate over a field) is decomposable if f = g(h) with g univariate of degree at least 2. We determine the dimension (over an algebraically closed field) of the set of decomposables, and an approximation to their number over a finite field. The relative error in our approximations is exponentially decaying in the input size.
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