On a conjecture of H. Rauch on theta constants and Riemann surfaces with many automorphisms.
On deformations of monomial curves
On higher-order weierstrass points and the finiteness of the automorphism group.
On ovals on Riemann surfaces.
We prove that k (k ≥ 9) non-conjugate symmetries of a Riemann surface of genus g have at most 2g - 2 + 2r - 3(9 - k) ovals in total, where r is the smallest positive integer for which k ≤ 2r - 1. Furthermore we prove that for arbitrary k ≥ 9 this bound is sharp for infinitely many values of g.
On the computation of Weierstrass gap sequences.
On the connectedness of the locus of real Riemann surfaces.
On the existence of Weierstrass points whose first non-gaps are five.
On the graded Betti numbers of plane algebraic curves.
On the Lüroth Semigroup of curves lying on a smooth quadric.
On the moduli spaces of Gorenstein curves with symmetric Weierstrass semigroups.
On the Pythagoras number of a real irreducible algebroid curve.
On the theory of Riemann's Integrals