The Expected Number of Zeros of a Ran- Dom System of P -adic Polynomials

نویسنده

  • STEVEN N. EVANS
چکیده

We study the simultaneous zeros of a random family of d polynomials in d variables over the p-adic numbers. For a family of natural models, we obtain an explicit constant for the expected number of zeros that lie in the d-fold Cartesian product of the p-adic integers. Considering models in which the maximum degree that each variable appears is N , this expected value is pdblogp Nc ( 1 + p−1 + p−2 + · · ·+ p−d )−1 for the simplest such model.

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تاریخ انتشار 2006