Notes on the Diederich-Sukhov-Tumarov normalization for almost complex structures (Q1022274)

The present paper, written for non-specialists, discusses several points in the theory of almost complex manifolds, especially the Diederich-Sukhov-Tumanov normalization of an almost complex structure along a \(J\)-holomorphic disc. There is also a focus on the question of choice of special coordinates and on the obstruction given by the Nijenhuis tensor.