Symplectic and Lagrange stabilities of open Whitney umbrellas

Fourier integral operators. I

Lars Hörmander · Acta Mathematica · 1971 · 2.4K citations · Full text

Analytic Functions of Several Complex Variables.

J. W. Gray, Robert C. Gunning, Hugo Rossi · American Mathematical Monthly · 1968 · 1.4K citations

Spectral Theory, Theoretical Mathematics, Complex Function Theory +9

Finite Determinacy of Smooth Map-Germs

C. T. C. Wall · Bulletin of the London Mathematical Society · 1981 · 399 citations

Finite Determinacy, Schubert Calculus, Global Analysis +1

Normal forms for functions near degenerate critical points, the Weyl groups of Ak, Dk, Ek and Lagrangian singularities

Vladimir I. Arnold · Functional Analysis and Its Applications · 1973 · 329 citations

Normal Forms, Lie Group, Global Analysis +4

Stability of C ∞ Mappings: II. Infinitesimal Stability Implies Stability

John N. Mather · Annals of Mathematics · 1969 · 211 citations

Nonlinear Functional Analysis, Infinite Dimensional Analysis, Engineering +14