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CMA - Centro de Matemática e Aplicações da UBI

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http://hdl.handle.net/10400.6/4132

CMA, Centre of Mathematics and Applications, is a research unit in Mathematics and Applications, hosted by University of Beira Interior (UBI). UBI provides the requested facilities, budget management, computing support and institutional framework to wards CMA’s activities.

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Browsing CMA - Centro de Matemática e Aplicações da UBI by Author "Almeida, Carla"

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  • Quantum cosmology of scalar-tensor theories and self-adjointness
    Publication . Almeida, Carla; Batista, António B.; Fabris, Júlio C.; Moniz, Paulo
    In this paper, the problem of the self-adjointness for the case of a quantum minisuperspace Hamiltonian retrieved from a Brans-Dicke (BD) action is investigated. Our matter content is presented in terms of a perfect fluid, onto which the Schutz's formalism will be applied. We use the von Neumann theorem and the similarity with the Laplacian operator in one of the variables to determine the cases where the Hamiltonian is self-adjoint and if it admits self-adjoint extensions. For the latter, we study which extension is physically more suitable.
    2016-08-31Journal article Open access Show more