Geodesic
Schur's criterion for formal power series
Sbornik. Mathematics, Tome 210 (2019) no. 11, pp. 1563-1580

Voir la notice de l'article provenant de la source Math-Net.Ru

A criterion for when a formal power series can be represented by a formal Schur continued fraction is stated. The proof proposed is based on a relationship, revealed here, between Hankel two-point determinants of a series and its Schur determinants. Bibliography: 10 titles.
Keywords: continued fractions, Schur functions, Hankel determinants. 
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     author = {V. I. Buslaev},
     title = {Schur's criterion for formal power series},
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V. I. Buslaev. Schur's criterion for formal power series. Sbornik. Mathematics, Tome 210 (2019) no. 11, pp. 1563-1580. http://geodesic.mathdoc.fr/item/SM_2019_210_11_a2/