Boris Khesin

Boris Aronovich Khesin (in Russian: Борис Аронович Хесин, born in 1964) is a Russian and Canadian mathematician working on infinite-dimensional Lie groups, Poisson geometry and hydrodynamics.

Khesin obtained his Ph.D. from Moscow State University in 1990 under the supervision of Vladimir Arnold (Thesis: Normal forms and versal deformations of evolution differential equations).

[2] He is an editor of the Complete Works of Vladimir Arnold.

[3] "Professor Khesin is recognized for his work in Poisson geometry and infinite-dimensional group theory, and for his remarkable geometric intuition applied to problems of topological hydrodynamics and double-loop groups.

In addition, Professor Khesin discovered the "logarithm of the derivative", a notion of elegant simplicity providing a link between the theory of determinants and the theory of infinite-dimensional integrable systems.