Compact subvarieties with ample normal bundles, algebraicity and cones   of cycles
  In this note we study two features of submanifolds (subvarieties) with ample normal bundles in a compact K\"ahler manifold X. First, we study how algebraic X can be, i.e. we investigate the algebraic dimension. Second, we study curves with ample normal bundles in case X is projective. We prove in various cases that the class of the curve is in the interior of the Mori cone. 
Thomas Peternell
math.AG math.CV