On implicit Lagrangian differential systems
Let (P,ω) be a symplectic manifold. We find an integrability condition for an implicit differential system D' which is formed by a Lagrangian submanifold in the canonical symplectic tangent bundle (TP,ὡ).
On indecomposable subcontinua of surfaces
On infinite-dimensional manifolds
On Injective Rational Coefficient Systems.
On Invariants of Hirzebruch and Cheeger-Gromov.
On inverse limits of (2k+m+1)-disk bundle maps
On irreducible, infinite, nonaffine Coxeter groups
The following results are proved: The center of any finite index subgroup of an irreducible, infinite, nonaffine Coxeter group is trivial; Any finite index subgroup of an irreducible, infinite, nonaffine Coxeter group cannot be expressed as a product of two nontrivial subgroups. These two theorems imply a unique decomposition theorem for a class of Coxeter groups. We also prove that the orbit of each element other than the identity under the conjugation action in an irreducible, infinite, nonaffine...
On irregular links at infinity of algebraic plane curves.
On isomorphisms between fibrations over associated with a action
On iterated torus knots and transversal knots.
On J.H.C. Whitehead's aspherical question I.
On Khovanov's categorification of the Jones polynomial.
On Killing Characteristic Classes by Cobordism.
On Klein Surfaces and Dihedral Groups.
On knot Floer homology and cabling.
On Knot Modules.
On Lie algebras of vector fields related to Riemannian foliations
Riemannian foliations constitute an important type of foliated structures. In this note we prove two theorems connecting the algebraic structure of Lie algebras of foliated vector fields with the smooth structure of a Riemannian foliation.
On link maps and their homotopy classification.
On linked Jordan curves in
On links with one codimension two compontent.