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hep-th2017★ 31 cited
Field redefinitions in theories beyond Einstein gravity using the language of differential forms
Jose María Ezquiaga, Juan García-Bellido, Miguel Zumalacárregui
We study the role of field redefinitions in general scalar-tensor theories. In particular, we first focus on the class of field redefinitions linear in the spin-2 field and involvi…
hep-th2016★ 37 cited
Towards the most general scalar-tensor theories of gravity: a unified approach in the language of differential forms
Jose María Ezquiaga, Juan García-Bellido, Miguel Zumalacárregui
We use a description based on differential forms to systematically explore the space of scalar-tensor theories of gravity. Within this formalism, we propose a basis for the scalar…