Some infinte families of U-hypersurfaces.
Some lagrangian invariants of symplectic manifolds
The KV-homology theory is a new framework which yields interesting properties of lagrangian foliations. This short note is devoted to relationships between the KV-homology and the KV-cohomology of a lagrangian foliation. Let us denote by (resp. ) the KV-algebra (resp. the space of basic functions) of a lagrangian foliation F. We show that there exists a pairing of cohomology and homology to . That is to say, there is a bilinear map , which is invariant under F-preserving symplectic diffeomorphisms....
Some new results on composition of quadratic forms.
Some Non-Linear Equivariant Sphere Bundles
Some non-trivial PL knots whose complements are homotopy circles
We show that there exist non-trivial piecewise linear (PL) knots with isolated singularities , n ≥ 5, whose complements have the homotopy type of a circle. This is in contrast to the case of smooth, PL locally flat, and topological locally flat knots, for which it is known that if the complement has the homotopy type of a circle, then the knot is trivial.
Some partial formulae for Stiefel-Whitney classes of Grassmannians
Some Point Set Properties of Merotopic Spaces and Their Cohomology Groups.
Some Pontrjagin Rings. II.
Some Properties of a Cohomology Group Associated to a Totally Geodesic Foliation.
Some properties of fundamental dimension
Some Properties of the b-Product.
Some quantitative properties of shapes
Some rational computations of the Waldhausen algebraic K theory.
Some relations between shape constructions
Some remarks concerning the fundamental dimension of the cartesian product of two compacta
Some remarks on conjugacy classes of bundle Gauge groups
Some remarks on shape properties of compacta
Some results on homotopy theory of modules
Seguendo le idee presentate nei lavori [1] e [2] si studiano le proprietà dei gruppi di -omotopia per moduli ed omomorfismi di moduli.
Some Results on Maps That Factor through a Tree
We give a necessary and sufficient condition for a map deffned on a simply-connected quasi-convex metric space to factor through a tree. In case the target is the Euclidean plane and the map is Hölder continuous with exponent bigger than 1/2, such maps can be characterized by the vanishing of some integrals over winding number functions. This in particular shows that if the target is the Heisenberg group equipped with the Carnot-Carathéodory metric and the Hölder exponent of the map is bigger than...
Some results on the extension of analytic entities defined out of a compact