On Müntz rational approximation in multivariables
Volume 68 / 1995
Colloquium Mathematicum 68 (1995), 39-47
DOI: 10.4064/cm-68-1-39-47
Abstract
The present paper shows that for any $s$ sequences of real numbers, each with infinitely many distinct elements, ${λ_{n}^{j}}$, j=1,...,s, the rational combinations of $x_{1}^{λ_{m_1}^1} x_{2}^{λ_{m_2}^2}...x_{s}^{λ_{m_s}^s}$ are always dense in $C_{I^s}$.
