On the stabilizer of a column in a matrix group over a polynomial ring of n x n matrices over a polynomial ring or a
Laurent polynomial ring of n variables is presented
The approximate conformal mapping onto multiply connected domains coefficients. The approximate mapping function has the form of a set of
Laurent polynomials in the set
On the Cauchy Problem for Multidimensional Difference Equations in Rational Cone-
ficient condition for its solvability is given. The notion of multisection of multiple
Laurent series