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gr-qc2025
Inflation with Gauss-Bonnet correction: beyond slow-roll
Kamil Mudrunka, Kazunori Nakayama
If a coupling between the inflaton and the Gauss-Bonnet term is introduced, many models of inflation that were ruled out by the most recent Planck data can be made viable again. Th…
gr-qc2024★ 8 cited
Newman-Penrose formalism and exact vacuum solutions to conformal Weyl gravity
Petr Jizba, Kamil Mudruňka
We study the exterior solution for a static, spherically symmetric source in Weyl conformal gravity in terms of the Newman--Penrose formalism. We first show that both the static, u…