RT Journal Article T1 High-school algebra of the theory of dicritical divisors: atypical fibres for special pencils and polynomials A1 Artal Bartolo, Enrique A1 Luengo Velasco, Ignacio A1 Melle Hernández, Alejandro AB In this work we deal with dicritical divisors, curvettes and polynomials.These objects have been one of the main research interests of S.S. Abhyanka during his last years. In this work we provide some elementary proofs of some S.S.Abhyankar and I. Luengo results for dicriticals in the framework of forma power series. Based on these ideas we give anconstructive way to find the atypical fibres of a special pencil and give bounds for its number, which are sharper than the existing ones. Finally, we answer a question of J. Gwozdziewicz finding polynomials that reach his bound. PB http://www.worldscientific.com SN 0219-4988 YR 2015 FD 2015-11 LK https://hdl.handle.net/20.500.14352/23022 UL https://hdl.handle.net/20.500.14352/23022 LA eng DS Docta Complutense RD 18 abr 2025