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math.AG2026
Whittaker groups and hyperelliptic curves
Marius van der Put, Jaap Top
Let K be a complete, non-archimedean valued field with a residue field of characteristic different from 2. A Whittaker group G is a discontinuous subgroup of PGL(2,K), freely gener…
math.AG2026
Automorphisms of Plane Curves defined from Chebychev polynomials
Saeed Tafazolian, Jaap Top
We investigate the automorphism groups of the algebraic curves \[ \mathcal{C}_d : y^d = Ï_d(x), \] where denotes the Chebyshev polynomial of degree , defined over a f…