Zeros of cesàro sum approximations
نویسندگان
چکیده
منابع مشابه
Zeros of Cesàro Sum Approximations
Let D denote the open unit disk and let f(z) = P∞ n=0 anz n be analytic on D with positive monotone decreasing coefficients an. We answer several questions posed by J. Cima on the location of the zeros of polynomial approximants which he originally posed about outer functions. In particular, we show that the zeros of Cesàro approximants to f are well-behaved in the following sense: (1) if an an...
متن کاملApproximations for zeros of Hermite functions
We present a convergent asymptotic formula for the zeros of the Hermite functions as λ → ∞. It is based on an integral formula due to the authors for the derivative of such a zero with respect to λ. We compare our result with those for zeros of Hermite polynomials given by P. E. Ricci.
متن کاملApproximations in Dynamic Zero-sum Games, Ii Approximations in Dynamic Zero-sum Games, Ii
We pursue in this paper our study of approximations of values and-saddle-point policies in dynamic zero-sum games. After extending the general theorem for approximation, we study zero-sum stochastic games with countable state space, and non-bounded immediate reward. We focus on the expected average payoo criterion. We use some tools developed in the rst paper, to obtain the convergence of the v...
متن کاملApproximations in Dynamic Zero-sum Games, I
We develop a unifying approach for approximating a \limit" zero-sum game by a sequence of approximating games. We discuss both the convergence of the values and the convergence of optimal (or \almost" optimal) strategies. Moreover, based on optimal policies for the limit game, we construct policies which are almost optimal for the approximating games. We then apply the general framework to stat...
متن کاملNonlinear channel equalizer using Gaussian sum approximations
The aim of this paper is to revisit the problem of nonlinear channel equalization. The equalization is here viewed as the estimation, from the observation of the channel output, of the state vector of the channel consisting of the last transmitted symbols. If the probability density function of the state vector given all the available observations, (the a posteriori density function) were known...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Complex Variables, Theory and Application: An International Journal
سال: 2001
ISSN: 0278-1077,1563-5066
DOI: 10.1080/17476930108815386