We survey crystalline cohomology, crystals, and formal group laws with an emphasis on
geometry. We apply these concepts to K3 surfaces, and especially to supersingular K3 …

For any flat family of pure-dimensional coherent sheaves on a family of projective schemes,
the Harder–Narasimhan type (in the sense of Gieseker semistability) of its restriction to each …

Let S be a smooth projective surface over C. We study the local and global geometry of the
nested Hilbert scheme of points S [n, n+ 1, n+ 2]. In particular, we show that S [n, n+ 1, n+ 2] …

The moduli spaces of symplectic vector bundles of arbitrary rank on projective space P 3 are
far from being well-understood. By now the only type of such bundles having satisfactory …

This text is an expanded version of the lecture notes I wrote for the PhD course Introduction
to enumerative geometry–Classical and virtual techniques I gave at SISSA in the fall of …

On Deformations of Toric Fano Varieties | SpringerLink Skip to main content Advertisement
SpringerLink Account Menu Find a journal Publish with us Track your research Search Cart …

Given a smooth, projective curve $ Y $, a finite group $ G $ and a positive integer $ n $ we
study smooth, proper families $ X\to Y\times S\to S $ of Galois covers of $ Y $ with Galois …

arXiv:1508.07644v1 [math.AG] 30 Aug 2015 Page 1 arXiv:1508.07644v1 [math.AG] 30 Aug
2015 Clay Mathematics Proceedings Singular curves and their compactified Jacobians Jesse …

Let X be a Noetherian separated and finite dimensional scheme over a field K of
characteristic zero. The goal of this paper is to study deformations of X over a differential …

Good Completions of Néron Models Page 1 Good Completions of Néron Models Jesse Kass
April 15, 2009 Abstract In this document, we investigate the topic of applying the theory of …