Ostrovskii, Iossif VladimirovichHavin, V. P.Nikolski, N. K.2019-06-142019-06-1420009783034895415http://hdl.handle.net/11693/52040Let f(z)=∑k=0∞akzkf(z)=∑k=0∞akzk (1.1) be a power series with a positive radius of convergence. Let sn(z)=∑k=0nakzk,tn(z)=∑k=n+1∞akzksn(z)=∑k=0nakzk,tn(z)=∑k=n+1∞akzk be its nth section and nth tail, respectively.EnglishPower seriesEntire functionFinite systemNevanlinna theoryExponential seriesConference Paper10.1007/978-3-0348-8378-810.1007/978-3-0348-8378-8_239783034883788