TY - BOOK AU - Hartshorne, Robin TI - Deformation theory SN - 9781441915955 U1 - 510 PY - 2010/// CY - New York PB - Springer KW - Algebraic Geometry KW - Deformations of singularities KW - Mathematics N1 - 1. First-order deformations -- 2. Higher-order deformations -- 3. Formal moduli -- 4. Global questions ER -