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math.DG2025

Equiaffine immersions and pseudo-Riemannian space forms

Nicholas Rungi

We introduce an explicit construction that produces immersions into the pseudosphere and the pseudohyperbolic space starting from equiaffi…

math.DG2025

Para-complex geometry and cyclic Higgs bundles

Nicholas Rungi, Andrea Tamburelli

We introduce para-complex and pseudo-Riemannian geometric methods for the study of representations of surface groups in . For our techniques all…

math.DG2024

Complex Lagrangian minimal surfaces, bi-complex Higgs bundles and -quasi-Fuchsian representations

Nicholas Rungi, Andrea Tamburelli

In this paper we introduce complex minimal Lagrangian surfaces in the bi-complex hyperbolic space and study their relation with representations in . Our…

math.DG2023

The moduli space of flat maximal space-like embeddings in pseudo-hyperbolic space

Nicholas Rungi, Andrea Tamburelli

We study the moduli space of flat maximal space-like embeddings in from various aspects. We first describe the associated Codazzi tensors to the embedding in the…

math.DG2023

Riemannian geometry of maximal surface group representations acting on pseudo-hyperbolic space

Nicholas Rungi

For any maximal surface group representation into , we introduce a non-degenerate scalar product on the the first cohomology group of the surface with values…

math.DG2023

Pseudo-Kähler structure on the -Hitchin component and Goldman symplectic form

Nicholas Rungi, Andrea Tamburelli

The aim of this paper is to show the existence and give an explicit description of a pseudo-Riemannian metric and a symplectic form on the -Hitc…