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Infinite linear and algebraic independence of values of $F$-series at polyadic Liouvillea points
E. Yu. Yudenkova Moscow Pedagogical State University (Moscow)
Abstract:
This paper proves infinite linear and algebraic independence of the values of
$F$-series at polyadic Liouville points using a modification of the generalised Siegel-Shidlovskii method.
$F$-series have form
$f_n = \sum_{n=0}^{\infty}a_n n! z^n$ whose coefficients
$a_n$ satisfy some arithmetic properties. These series converge in the field
$\mathbb{Q}_p$ of
$p$-adic numbers and their algebraic extensions
$\mathbb{K}_v$. Polyadic number is a series of the form
$\sum_{n=0}^{\infty} a_nn!, a_n \in \mathbb{Z}$. Liouville number is a real number x with the property that, for every positive integer n, there exist infinitely many pairs of integers
$(p, q)$ with
$q > 1$ such that $0 < \left| x - \frac{p}{q} \right| < \frac{1}{q^n}. $ The polyadic Liouville number
$\alpha$ has the property that for any numbers
$P, D$ there exists an integer
$|A|$ such that for all primes
$p \leq P$ the inequality
$|\alpha - A|_p < A^{-D}. $ Infinite linear (algebraic) independence means that for any nonzero linear form (any nonzero polynomial) there are infinitely many primes
$p$ and valuations
$v$ extending
$p$-adic valuation to an algebraic number field
$\mathbb{K}$ with the following property: the result of substitution in the considered linear form (polynomial) of the values of
$ F $ — of series instead of variables is a nonzero element of the field.
Previously, only the existence of at least one prime number
$p$ with the properties listed above was proved.
Keywords:
Method by Siegel–Shidlovscii, $F$-series, polyadic Liouville numbers.
UDC:
511.3
DOI:
10.22405/2226-8383-2018-22-2-334-346