Exact black hole solutions in shift-symmetric quadratic degenerate higher-order scalar-tensor theories von Motohashi, Hayato, Minamitsuji, Masato

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Stealth Schwarzschild solution in shift symmetry breaking theories von Minamitsuji, Masato, Motohashi, Hayato

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Black hole perturbations in DHOST theories: master variables, gradient instability, and strong coupling von Takahashi, Kazufumi, Motohashi, Hayato

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Ultra slow-roll inflation and the non-Gaussianity consistency relation von Martin, Jérôme, Motohashi, Hayato, Suyama, Teruaki

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f(R) constant-roll inflation von Motohashi, Hayato, Starobinsky, Alexei A.

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Generalized slow roll in the unified effective field theory of inflation von Motohashi, Hayato, Hu, Wayne

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General Relativity solutions in modified gravity von Motohashi, Hayato, Minamitsuji, Masato

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Ghost-Free Theory with Third-Order Time Derivatives von Motohashi, Hayato, Suyama, Teruaki, Yamaguchi, Masahide

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Effective field theory of degenerate higher-order inflation von Motohashi, Hayato, Hu, Wayne

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Ghost-free theories with arbitrary higher-order time derivatives von Motohashi, Hayato, Suyama, Teruaki, Yamaguchi, Masahide

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Quasinormal modes of Schwarzschild black holes on the real axis von Kyutoku, Koutarou, Motohashi, Hayato, Tanaka, Takahiro

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Constant-roll inflation in scalar-tensor gravity von Motohashi, Hayato, Starobinsky, Alexei A.

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Consistency of matter coupling in modified gravity von Takahashi, Kazufumi, Kimura, Rampei, Motohashi, Hayato

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Ghost from constraints: a generalization of Ostrogradsky theorem von Aoki, Katsuki, Motohashi, Hayato

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Stealth dark energy in scordatura DHOST theory von Gorji, Mohammad Ali, Motohashi, Hayato, Mukohyama, Shinji

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Black hole perturbations in higher-order scalar–tensor theories: initial value problem and dynamical stability von Nakashi, Keisuke, Kimura, Masashi, Motohashi, Hayato, Takahashi, Kazufumi

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Quantum Ostrogradsky theorem von Motohashi, Hayato, Suyama, Teruaki

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Disformal invariance of curvature perturbation von Motohashi, Hayato, White, Jonathan

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Physical effects of gravitational waves: pedagogical examples von Motohashi, Hayato, Suyama, Teruaki

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Generalized disformal Horndeski theories: Cosmological perturbations and consistent matter coupling von Takahashi, Kazufumi, Minamitsuji, Masato, Motohashi, Hayato

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