The homotopy invariance of the string topology loop product and string bracket

The homotopy principle in the existence level for maps with only singularities of types A, D and E

The Hopf invariant of a Haefliger knot

The horoboundary and isometry group of Thurston's Lipschitz metric

The horofunction boundary of finite-dimensional normed spaces

The horofunction compactification of Teichmüller metric

The hyperbolic meaning of the Milnor-Wood inequality

The ideals of the homological Goldman Lie algebra

The infimum, supremum and geodesic length of a braid conjugacy class

The infinitesimal projective rigidity under Dehn filling

The integer cohomology of toric Weyl arrangements

The Integer Valued SU(3) Casson Invariant for Brieskorn spheres

The Intersection Graph Conjecture for Loop Diagrams

The intersection of spheres in a sphere and a new geometric meaning of the Arf invariant

The intrinsic asymmetry and inhomogeneity of Teichmuller space

The invariant of n-punctured ball tangles

The isomorphism problem of planar polygon spaces

The Isotopy Problem for Symplectic 4-manifolds

The Johnson homomorphism and its kernel

The Jones polynomial and boundary slopes of alternating knots