Columbia subject headings:
Differentiable manifolds.
Germs (Mathematics)
Modules (Algebra)
Rings (Algebra)
Sheaf theory.
Harvard subject headings:
D-modules.
Differentiable manifolds.
Germs (Mathematics)
Modules (Algebra)
Rings (Algebra)
Sheaf theory.
Princeton subject headings:
Differentiable manifolds.
Germs (Mathematics)
Modules (Algebra)
Rings (Algebra)
Sheaf theory.