On rigidity of factorial trinomial hypersurfaces
Abstract
An affine algebraic variety $X$ is rigid if the algebra of regular functions ${\mathbb K}[X]$ admits no nonzero locally nilpotent derivation. We prove that a factorial trinomial hypersurface is rigid if and only if every exponent in the trinomial is at least 2.
 Publication:

arXiv eprints
 Pub Date:
 January 2016
 arXiv:
 arXiv:1601.02251
 Bibcode:
 2016arXiv160102251A
 Keywords:

 Mathematics  Algebraic Geometry;
 Primary 13A50;
 14R20;
 Secondary 14J50;
 14L30;
 14M25
 EPrint:
 8 pages