Some remarks on coverings of the projective line over finite fields

Details Some remarks on coverings of the projective line over finite fields Some remarks on coverings of the projective line over finite fields

2012-02-23

arxiv.org/abs/1202.5221v1

Mathematics

Algebraic Geometry

Scientific paper

We study finite Galois extensions of the rational function field of the
projective line P^{1}(F_q) over a finite field F_q with q elements defined by
considering quotient curves by finite subgroups of the projective linear group
PGL(2,q), and we enumerate them expressing the count in terms of Stirling
numbers.

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