Araştırma Çıktıları / Research Outcomes
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Publication AdS-plane wave andpp-wave solutions of generic gravity theories(American Physical Society (APS), 2014-12-02) Metin Gürses; Tahsin Çağrı Şişman; Bayram TekinPublication Born-Infeld gravity with a massless graviton in four dimensions(American Physical Society (APS), 2015-02-03) İbrahim Güllü; Tahsin Çağrı Şişman; Bayram TekinPublication Gravity waves in three dimensions(American Physical Society (APS), 2015-10-06) Metin Gürses; Tahsin Çağrı Şişman; Bayram TekinPublication Born-Infeld gravity with a unique vacuum and a massless graviton(American Physical Society (APS), 2015-11-04) İbrahim Güllü; Tahsin Çağrı Şişman; Bayram TekinPublication From smooth curves to universal metrics(American Physical Society (APS), 2016-08-22) Metin Gürses; Tahsin Çağrı Şişman; Bayram TekinPublication Non-Einsteinian black holes in generic 3D gravity theories(American Physical Society (APS), 2019-09-25) Metin Gürses; Tahsin Çağrı Şişman; Bayram TekinPublication Conserved charges in extended theories of gravity(Elsevier BV, 2019-11) Hamed Adami; Mohammad Reza Setare; Tahsin Çağrı Şişman; Bayram TekinPublication Is there a novel Einstein–Gauss–Bonnet theory in four dimensions?(Springer Science and Business Media LLC, 2020-07) Metin Gürses; Tahsin Çağrı Şişman; Bayram TekinAbstractNo! We show that the field equations of Einstein–Gauss–Bonnet theory defined in generic $$D>4$$D>4 dimensions split into two parts one of which always remains higher dimensional, and hence the theory does not have a non-trivial limit to $$D=4$$D=4. Therefore, the recently introduced four-dimensional, novel, Einstein–Gauss–Bonnet theory does not admit an intrinsically four-dimensional definition, in terms of metric only, as such it does not exist in four dimensions. The solutions (the spacetime, the metric) always remain $$D>4$$D>4 dimensional. As there is no canonical choice of 4 spacetime dimensions out of D dimensions for generic metrics, the theory is not well defined in four dimensions.Publication Comment on “Einstein-Gauss-Bonnet Gravity in Four-Dimensional Spacetime”(American Physical Society (APS), 2020-09-28) Metin Gürses; Tahsin Çağrı Şişman; Bayram TekinPublication Israel-Wilson-Perjes metrics in a theory with a dilaton field(American Physical Society (APS), 2023-07-25) Metin Gürses; Tahsin Çaǧrı Şişman; Bayram Tekin