CR Singularities of Real Fourfolds in C3
Illinois Journal of Mathematics
CR singularities of real 4-submanifolds in complex 3-space are classified by using local holomorphic coordinate changes to transform the quadratic coefficients of the real analytic defining equation into a normal form. The quadratic coefficients determine an intersection index, which appears in global enumerative formulas for CR singularities of compact submanifolds.
Normal form, CR singularity, real submanifold, matrix pair
Algebraic Geometry | Analysis | Geometry and Topology | Mathematics
Adam Coffman (2009).
CR Singularities of Real Fourfolds in C3. Illinois Journal of Mathematics.53 (3), 939-981.