Title: Quadratic cohomology
Authors: A.A. Agrachev
Journal title: Arnold Math.
We study homological invariants of smooth families of real quadratic forms as a step towards a “ Lagrange multipliers rule in the large” that intends to describe topology of smooth vector functions in terms of scalar Lagrange functions.
ArXiv ID (ENG): 1301.2059
MathNet (ENG): http://mi.mathnet.ru/eng/arnmj1