32 citations · 57 across the 3 of their papers we have counts for
3 papers
astro-ph.CO2023★ 32 cited
Highly asymmetric probability distribution from a finite-width upward step during inflation
Ryodai Kawaguchi, Tomohiro Fujita, Misao Sasaki
We study a single-field inflation model in which the inflaton potential has an upward step between two slow-roll regimes by taking into account the finite width of the step. We cal…
astro-ph.CO2022★ 23 cited
Primordial black holes from Higgs inflation with a Gauss-Bonnet coupling
Ryodai Kawaguchi, Shinji Tsujikawa
Primordial black holes (PBHs) can be the source for all or a part of today's dark matter density. Inflation provides a mechanism for generating the seeds of PBHs in the presence of…
math.AG2013★ 2 cited
The gonality and the Clifford index of curves on a toric surface
Ryo Kawaguchi
We determine the gonality and the Clifford index for curves on a compact smooth toric surface. Moreover, it is shown that their gonality are computed by pencils on the ambient surf…