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    Open Access

    Compact objects of spherical symmetry in beyond Horndeski theories

    We analyse in all generality beyond Horndeski theories of shift symmetry in a static and spherically symmetric spacetime. By introducing four auxiliary functions, we write the field equations in a particularly...

    A. Bakopoulos, C. Charmousis, P. Kanti, N. Lecoeur in Journal of High Energy Physics (2022)

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    Article

    Novel ansatzes and scalar quantities in gravito-electromagnetism

    In this work, we focus on the theory of gravito-electromagnetism (GEM)—the theory that describes the dynamics of the gravitational field in terms of quantities met in electromagnetism—and we propose two novel ...

    A. Bakopoulos, P. Kanti in General Relativity and Gravitation (2017)

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    Article

    From GEM to electromagnetism

    In the first part of the present work, we focus on the theory of gravitoelectromagnetism (GEM), and we derive the full set of equations and constraints that the GEM scalar and vector potentials ought to satisf...

    A. Bakopoulos, P. Kanti in General Relativity and Gravitation (2014)

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    Article

    Minimally invasive oesophagectomy presentation of our technique

    To present a thoraco-laparoscopic total oesophagectomy. Oesophagectomy is a formidable surgical procedure. For malignancies, oesophagectomy with thoracotomy accomplishes complete resection of the tumour and su...

    D. Bistarakis, Sylvia Krivan, K. Petropoulos, A. Bakopoulos in Hellenic Journal of Surgery (2013)

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    Article

    Abstracts Colorectal Games, Rethymnom, Crete, Greece, May 2008

    S. H. Suleiman, O. E. H. Salim, D. O. Yousif, M. A. Eltahir in Techniques in Coloproctology (2008)