On Lichnerowicz smooth homotopy invariants for G-structures


Abstract


In [10] A. Lichnerowicz introduced a remarkable smooth homotopy invariant K(\Phi) for maps \Phi between almost Kähler manifolds.The generalisations of K(\Phi) for maps between Riemannian manifolds with given G-structures are described and some applications are given.

DOI Code: 10.1285/i15900932v13n1p197

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