Alfonso Zamora

collaborators

3 papers

math.AG2026

$e$ -polynomials of character varieties

Alfonso Zamora

These lecture notes contain the material presented at one of the mini-courses of the Workshop on Character Varieties and Higgs Bundles held in Liberia, Guanacaste, Costa Rica, in A…

math.AG2026

Segre invariants of principal bundles over a curve

George H. Hitching, Alfonso Zamora

For a vector bundle $V$ over a curve $X$ , the Segre invariant $s_{n} (V)$ encodes the maximal degree attained by rank $n$ subbundles of $V$ . The functions $s_{n}$ define stratification…

math.AG2024

Root data in character varieties

Ãngel GonzÃ¡lez-Prieto, Alfonso Zamora

Given $G$ an algebraic reductive group over an algebraically closed field of characteristic zero and $I^$ a finitely generated group, we provide a stratification of the $G$ -charact…

e-polynomials of character varieties

Segre invariants of principal bundles over a curve

Root data in character varieties

$e$ -polynomials of character varieties