A. Ortega

activity

20242026

collaborators

3 papers

math.AG2026

Klein coverings over hyperelliptic genus 3 curves

PaweÅ BorÃ³wka, Angela Ortega

We characterize the moduli space of Ã©tale Klein coverings (i.e. Galois with deck group $Z_{2}^{2}$ ) of hyperelliptic curves of genus 3. We prove that the Prym map on each com…

math.AG2025

Linear stability and rank two Clifford indices of algebraic curves with applications

Ali Bajravani, Angela Ortega

We prove that any vector bundle computing the rank-two Clifford index of a smooth projective algebraic curve is linearly semistable. We also identify conditions under which such bu…

math.AG2024

Simplicity of some Jacobians with many automorphisms

J. C. Naranjo, A. Ortega, G. P. Pirola +1

We study an explicit $(2 g - 1)$ -dimensional family of Jacobian varieties of dimension $\frac{d - 1}{2} (g - 1)$ , arising from quotient curves of unramified cyclic coverings of prime degree…