111 citations · 210 across the 3 of their papers we have counts for
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gr-qc2017★ 45 cited
On the hyperbolicity of the most general Horndeski theory
Giuseppe Papallo
In this paper we study the hyperbolicity of the equations of motion for the most general Horndeski theory of gravity in a generic "weak field" background. We first show that a spec…
gr-qc2017★ 111 cited
On the local well-posedness of Lovelock and Horndeski theories
Giuseppe Papallo, Harvey S. Reall
We investigate local well-posedness of the initial value problem for Lovelock and Horndeski theories of gravity. A necessary condition for local well-posedness is strong hyperbolic…
gr-qc2015★ 54 cited
Graviton time delay and a speed limit for small black holes in Einstein-Gauss-Bonnet theory
Giuseppe Papallo, Harvey S. Reall
Camanho, Edelstein, Maldacena and Zhiboedov have shown that gravitons can experience a negative Shapiro time delay, i.e. a time advance, in Einstein-Gauss-Bonnet theory. They studi…