AbstractConsider a non-uniruled smooth projective surface S. We establish that the tangent bundle T_S is pseudo-effective if and only if the canonical divisor K_S is nef, and the second Chern class c_2(S) vanishes. Additionally, I will discuss the blow-up of a non-rational ruled surface with a pseudo-effective tangent bundle. This talk is based on a collaborative project with Yongnam Lee and Gu...
AbstractThe real form problem asks how many different ways one can describe a given complex variety by polynomial equations with real coefficients, up to isomorphisms over the real number field. In this talk, I will discuss some recent results about smooth complex projective varieties with infinitely many real forms. This talk is based on joint works with T.-C. Dinh, C. Gachet, H.-Y. Lin, K. Og...