Recollement de variétés de contact tendues
Rectificatif à l'article «Recollement de variétés de contact tendues»
Reduction in contact geometry.
Reductions of locally conformal symplectic structures and de Rham cohomology tangent to a foliation
We define a procedure of reduction of locally conformal symplectic structures. We find a necessary and sufficient condition for this reduction to hold in terms of a special kind of de Rham cohomology class (tangent to the characteristic foliation) of the Lee form.
Residual models for nonlinear partial differential equations.