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The Yamabe problem for the Cauchy-Riemann manifolds

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Seminari di Analisi Matematica
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Dipartimento di Matematica Guido Castelnuovo, Sapienza Università di Roma

Speaker

Najoua GAMARA UNIVERSITE DES SCIENCES DE TUNIS

We extende the resolution of the Yamabe conjecture to the Cauchy-Riemann manifolds and precisely the case left open by D. Jenson and J. Lee: the conformally flat case and the case n = 1, where 2n + 1 is the dimension of the CR manifold. Let (M, ϑ) be a compact CR manifold of dimension 2n + 1 and ϑ a contact form. The CR Yamabe conjecture states that there is a contact form ϑ on M, conformal to ϑ, which has a constant Webster curvature. The problem is equivalent to the existence of a strictly positive solution of the equation LMu = u^1+2/n