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19962026
most citedGeometric Aspects of the Painlevé Equations and

22 citations · 56 across the 26 of their papers we have counts for

collaborators

32 papers

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.NT2025

CM theory, maximal hyperelliptic curves, and Chebyshev polynomials

Saeed Tafazolia, Jaap Top

This paper studies hyperelliptic curves $\cH_d$ corresponding to over finite fields, with a Chebyshev polynomial. Starting from the case where is an…

math.AG2025

Automorphisms of Plane Curves defined from Chebychev polynomials

Saeed Tafazolian, Jaap Top

We investigate the automorphism groups of the algebraic curves \[ \mathcal{C}_d : y^d = φ_d(x), \] where denotes the Chebyshev polynomial of degree , defined over a fie…

math.CA2024

Isomonodromy and Painlevé Type Equations, Case Studies

Marius van der Put, Jaap Top

There is an abundance of equations of Painlevé type besides the classical Painlevé equations. Classifications have been computed by the Japanese school. Here we consider Painlevé t…

math.HO2021

The last chapter of the Disquisitiones of Gauss

Laura Anderson, Jasbir S. Chahal, Jaap Top

This exposition reviews what exactly Gauss asserted and what did he prove in the last chapter of {\sl Disquisitiones Arithmeticae} about dividing the circle into a given number of…

math.CA2021

Moduli Spaces for the Fifth Painlevé Equation

Marius van der Put, Jaap Top

Isomonodromy for the fifth Painlevé equation is studied in detail in the context of certain moduli spaces for connections, monodromy, the Riemann-Hilbert morphism, and…