On a result of Eliashberg and Gromov

Abstract

We give a very simple proof of a theorem of Eliashberg and Gromov implying that intersection between the conormal bundles νM and νN of two proper submanifolds M, N of $\text{R}{}^{\mathrm{n}}$ is persistent under compactly supported Hamiltonian deformations of νM and νN.