"Shapiro, B." . "000276696200009" . "[D0A04E111BB3]" . "0021-9045" . "On spectral polynomials of the Heun equation. I" . "4" . "1"^^ . "162" . "2"^^ . . "US - Spojen\u00E9 st\u00E1ty americk\u00E9" . . . . "Journal of Approximation Theory" . "Heun equation; Spectral polynomials; Asymptotic root distribution"@en . . . . "P(LC06002), Z(AV0Z10480505)" . "Tater, Milo\u0161" . . . . . "RIV/61389005:_____/10:00343020" . "The classical Heun equation has the form {Q(z)d(2)/dz(2) + P(z)d/dz + V(z)} S(z) = 0. where Q(z) is a cubic complex polynomial, P(z) is a polynomial of degree at most 2 and V(z) is at most linear. In the second half of the nineteenth century E. Heine and T. Stieltjes initiated the study of the set of all V(z) for which the above equation has a polynomial solution S(z) of a given degree n. The main goal of the present paper is to study the union of the roots of the latter set of V(z)'s when n -> infinity. We provide an explicit description of this limiting set and give a substantial amount of preliminary and additional information about it obtained using a certain technique developed by A.B.J. Kuijlaars and W. Van Assche." . . . "276808" . . "On spectral polynomials of the Heun equation. I"@en . . . "The classical Heun equation has the form {Q(z)d(2)/dz(2) + P(z)d/dz + V(z)} S(z) = 0. where Q(z) is a cubic complex polynomial, P(z) is a polynomial of degree at most 2 and V(z) is at most linear. In the second half of the nineteenth century E. Heine and T. Stieltjes initiated the study of the set of all V(z) for which the above equation has a polynomial solution S(z) of a given degree n. The main goal of the present paper is to study the union of the roots of the latter set of V(z)'s when n -> infinity. We provide an explicit description of this limiting set and give a substantial amount of preliminary and additional information about it obtained using a certain technique developed by A.B.J. Kuijlaars and W. Van Assche."@en . "On spectral polynomials of the Heun equation. I" . "16"^^ . . "RIV/61389005:_____/10:00343020!RIV11-MSM-61389005" . "On spectral polynomials of the Heun equation. I"@en .