Mean number of real zeros of a random hyperbolic polynomial

Consider the random hyperbolic polynomial, f(x)=1pa1coshx+⋯+np×ancoshnx, in which n and p are integers such that n≥2,   p≥0, and the coefficients ak(k=1,2,…,n) are independent, standard normally distributed random variables. If νnp is the mean number of real zeros of f(x), then we prove that νnp=π−1...

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Detalhes bibliográficos
Autor principal: J. Ernest Wilkins
Formato: Artigo
Idioma:English
Publicado em: Wiley 2000-01-01
coleção:International Journal of Mathematics and Mathematical Sciences
Assuntos:
Acesso em linha:http://dx.doi.org/10.1155/S0161171200001848