Isomorphisms of Lie algebras of vector fields
Isoparametric Hypersurfaces with Four or Six Distinct Principal Curvatures. Necessary Conditions on the Multiplicities.
Isoperimetric inequalities and the homology of groups.
Isospectral, non-isometric Riemannian manifolds
The author gives a survey of the history of isospectral manifolds that are non-isometric discussing the work of Milnor, Vignéras, Sunada, and de Turck and Gordon. She describes the construction of continuous isospectral deformations as introduced by Gordon, Wilson, De Turck et al. She also discusses the construction of isospectral plane domains due to Gordon, Webb, and Wolpert. Some new examples of isospectral non-isometric manifolds are given.
Isotopie de formes fermées en dimension trois.
Isotropic characteristic classes
Iterates approaching hyperbolic manifolds of fixed points.
Iteration on Teichmüller space.
Itô calculus and quantisation of Lie bialgebras
Jacobi actions of and on two Jacobi manifolds.
Jacobi Fields and Finsler Metrics on Compact Lie Groups with an Application to Differentiable Pinching Problems.
Jacobi operator for leaf geodesics
James Numbers.
Jeden ze sedmi problémů tisíciletí se přibližuje k úplnému vyřešení
Jones polynomials, volume and essential knot surfaces: a survey
This paper is a brief overview of recent results by the authors relating colored Jones polynomials to geometric topology. The proofs of these results appear in the papers [18, 19], while this survey focuses on the main ideas and examples.
Jørgensen's inequality for discrete convergence groups.
Jumps of the eta-invariant (With an Appendix by Shmuel Weinberger: Rationality of p-invariants).
-theory of oriented Grassmann manifolds
-theory of virtually poly-surface groups.
conjecture for Artin groups
The purpose of this paper is to put together a large amount of results on the conjecture for Artin groups, and to make them accessible to non-experts. Firstly, this is a survey, containing basic definitions, the main results, examples and an historical overview of the subject. But, it is also a reference text on the topic that contains proofs of a large part of the results on this question. Some proofs as well as few results are new. Furthermore, the text, being addressed to non-experts, is as...