Abstract:
Given a tuple of m+1m+1 germs of arbitrary analytic functions at a fixed point, we introduce the polynomial Hermite-Padé mm-system, which includes the Hermite-Padé polynomials of types I and II. In the generic case we find the weak asymptotics of the polynomials of the Hermite-Padé mm-system constructed from the tuple of germs of functions 1,f1,…,fm1,f1,…,fm that are meromorphic on an (m+1)(m+1)-sheeted compact Riemann surface R. We show that if fj=fj for some meromorphic function f on R, then with the help of the ratios of polynomials of the Hermite-Padé m-system we recover the values of f on all sheets of the Nuttall partition of R, apart from the last sheet.
Bibliography: 18 titles.
Citation:
A. V. Komlov, “The polynomial Hermite-Padé m-system for meromorphic functions on a compact Riemann surface”, Sb. Math., 212:12 (2021), 1694–1729
This publication is cited in the following 11 articles:
S. P. Suetin, “O skalyarnykh podkhodakh k izucheniyu predelnogo raspredeleniya nulei mnogochlenov Ermita–Pade dlya sistemy Nikishina”, UMN, 80:1(481) (2025), 85–152
S. P. Suetin, “Maximum principle and asymptotic properties of Hermite–Padé polynomials”, Russian Math. Surveys, 79:3 (2024), 547–549
S. R. Nasyrov, “Nuttall decomposition of a three-sheeted torus”, Izv. Math., 88:5 (2024), 873–929
A. V. Komlov, R. V. Palvelev, “Zeros of discriminants constructed from Hermite–Padé polynomials of an algebraic function and their relation to branch points”, Sb. Math., 215:12 (2024), 1633–1665
S. P. Suetin, “Convergence of Hermite–Padé rational approximations”, Russian Math. Surveys, 78:5 (2023), 967–969
S. P. Suetin, “A direct proof of Stahl's theorem for a generic class of algebraic functions”, Sb. Math., 213:11 (2022), 1582–1596
S. P. Suetin, “Asymptotic properties of Hermite–Padé polynomials and Katz points”, Russian Math. Surveys, 77:6 (2022), 1149–1151
N. R. Ikonomov, S. P. Suetin, “Struktura nattollovskogo razbieniya dlya nekotorogo klassa chetyrekhlistnykh rimanovykh poverkhnostei”, Tr. MMO, 83, no. 1, MTsNMO, M., 2022, 37–61
V. G. Lysov, “Mnogourovnevye interpolyatsii dlya obobschennoi sistemy Nikishina na grafe-dereve”, Tr. MMO, 83, no. 2, MTsNMO, M., 2022, 345–361
V. G. Lysov, “Multilevel interpolations for the generalized Nikishin system on a tree graph”, Trans. Moscow Math. Soc., –
N. R. Ikonomov, S. P. Suetin, “A Viskovatov algorithm for Hermite-Padé polynomials”, Sb. Math., 212:9 (2021), 1279–1303