Navegando por Autor "Barbosa, Ezequiel Rodrigues"
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Item Second eigenvalue of the CR Yamabe operator.(2020) Lemos, Flávio Almeida; Barbosa, Ezequiel RodriguesLet (M, θ) be a compact, connected, strictly pseudoconvex CR manifold. In this paper, we give some properties of the CR Yamabe Operator Lθ. We present an upper bound for the Second CR Yamabe Invariant, when the First CR Yamabe Invariant is negative, and the existence of a minimizer for the Second CR Yamabe Invariant, under some conditions.