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JOURNALS // Chebyshevskii Sbornik // Archive

Chebyshevskii Sb., 2015 Volume 16, Issue 4, Pages 90–99 (Mi cheb437)

This article is cited in 2 papers

Correlations between real conjugate algebraic numbers

F. Götzea, D. Kaliadab, D. N. Zaporozhetsc

a Bielefeld University, Department of Mathematics
b Institute of Mathematics of the National Academy of Sciences of Belarus
c St. Petersburg Department of Steklov Mathematical Institute of Russian Academy of Sciences

Abstract: For $B\subset\mathbb{R}^k$ denote by $\Phi_k(Q,B)$ the number of ordered $k$-tuples in $B$ of real conjugate algebraic numbers of degree $\leq n$ and naive height $\leq Q$. We show that
$$ \Phi_k(Q;B) = \frac{(2Q)^{n+1}}{2\zeta(n+1)} \int\limits_{B} \chi_k(\mathbf{x}) \prod_{1\le i < j \le k} |x_i - x_j| d\mathbf{x} + O\left(Q^n\right),\quad Q\to \infty, $$
where the function $\chi_k$ is continuous in $\mathbb{R}^k$ and will be given explicitly. If $n=2$, then an additional factor $\log Q$ appears in the reminder term. This relation may be regarded as a "repulsion" of real algebraic conjugates from each other.
The function
$$ \rho_k(\mathbf{x}):= \chi_k(\mathbf{x}) \prod_{1\le i < j \le k} |x_i - x_j| $$
coincides with a $k$-point correlation function of real zeros of a random polynomial of degree $n$ with independent coefficients uniformly distributed on $[-1,1]$.
Bibliography: 18 titles.

Keywords: conjugate algebraic numbers, correlations between algebraic numbers, distribution of algebraic numbers, integral polynomial, random polynomial.

UDC: 511.35, 511.75, 511.48, 519.218.5

Received: 09.11.2015

Language: English



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