Singularities of the dual curve of a certain plane curve in positive characteristic

نویسندگان

چکیده

It is well known that the Gauss map for a complex plane curve birational, whereas in positive characteristic not always birational. Let $q$ be power of prime integer. We study certain degree $q^2 + q 1$ which inseparable with $q$. As special case, we show relation between dual Fermat and Ballico-Hefez curve.

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ژورنال

عنوان ژورنال: Kodai Mathematical Journal

سال: 2021

ISSN: ['0386-5991', '1881-5472']

DOI: https://doi.org/10.2996/kmj44110