Columbia subject headings:
Ideals (Algebra)
Lie algebras.
Polynomials.
Singularities (Mathematics)
Harvard subject headings:
Ideals (Algebra)
Lie algebras.
Polynomials.
Singularities (Mathematics)
Princeton subject headings:
Ideals (Algebra)
Lie algebras.
Polynomials.
Singularities (Mathematics)