Integral Geometry and Real Zeros of Thue - Morse Polynomials
نویسنده
چکیده
We study the average number of intersecting points of a given curve with random hyperplanes in an n-dimensional Euclidean space. As noticed by A. Edelman and E. Kostlan this problem is closely linked to nding the average number of real zeros of random polynomials. They show that a real polynomial of degree n has in average 2 log n + O(1) real zeros (M. Kac's theorem). This result leads us to the following question: given a real sequence (k) k2N , to study the average 1 N P N?1 n=0 (fn); where (fn) is the number of real zeros of fn(X) = 0 + 1 X + + nX n. Theoretical results are given for the Thue-Morse polynomials as well as numerical evidence for other polynomials.
منابع مشابه
On the real roots of generalized Thue-Morse polynomials
In this article we investigate real roots of real polynomials. By results of M. Kac 8, 9, 10] we know that a polynomial of degree n has in average 2 log n real zeros. See also results of Edelman and Kostlan 5] on the same subject. Some 10 years later Erdds and OOord 7] proved that the mean number of real roots of a random polynomial of degree n with coeecients 1 is again 2 log n: This leads us ...
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