Multipoint Padé Approximation of the Psi Function

The Newton interpretation of the psi function by rational functions with free poles is studied. A discrete formula for the Rodrigues determinants is obtained and the limit distribution of their zeros is found. The corresponding equilibrium problem of the theory of logarithmic potential is obtained.

Bibliographische Detailangaben

Veröffentlicht in:	Mathematical Notes 2021-09, Vol.110 (3-4), p.571-577
1. Verfasser:	Sorokin, V. N.
Format:	Artikel
Sprache:	eng
Schlagworte:	14/34 639/766/189 639/766/530 639/766/747 Mathematics Mathematics and Statistics Pade approximation Rational functions
Online-Zugang:	Volltext
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