Differential Geometry and Mathematical Physics: Lectures Given at the Meetings of the Belgian Contact Group on Differential Geometry Held at Li?e, Ma (Paperback, Softcover Repri)

Liege, May 2 - 3, 1980.- Simultaneous deformations of a Lie algebra and its modules.- How to connect exponential integrals to optimal process?.- Invariance of Maxwell's equations.- On the classification of manifolds foliated by the action of a nilpotent Lie group.- Heat, cold and geometry.- Deformations of algebras associated with a symplectic manifold.- Differential deformations with constant coefficients.- Leuven, February 6 - 8, 1981.- Some aspects of theoretical physics relating to harmonic maps.- Stability and self-duality of Yang-Mills fields.- Embedded 2-spheres in ?3.- Local Chevalley cohomologies of the dynamical Lie algebra of a symplectic manifold.- The spin polarizer.- Variational theory in fibre bundles: examples.- Curvatures of tubes about submanifolds.- Almost symmetric spaces.- Minimal surfaces and Weyl groups.- Some aspects of harmonic maps from a surface to complex projective space.