3 citations · 5 across the 8 of their papers we have counts for
8 papers
On the Rosenhain forms of superspecial curves of genus two
Ryo Ohashi
In this paper, we examine superspecial genus-2 curves in odd characteristic . As a main result, we show that the difference between any two elem…
Andreev-like Reflection in the Pfaffian Fractional Quantum Hall Effect
Ryoi Ohashi, Ryota Nakai, Takehito Yokoyama +2
We studied the tunnel transport between the edge of a Pfaffian fractional quantum Hall state and that of an integer quantum Hall state. Based on the duality argument between the st…
On the maximality of genus-3 nonhyperelliptic curves of Ciani type
Ryo Ohashi
In this paper, we study a Ciani curve in positive characteristic . We will show that if is superspecial, then i…
On the maximality of hyperelliptic Howe curves of genus 3
Ryo Ohashi
In this paper, we study a Howe curve in positive characteristic which is of genus 3 and is hyperelliptic. We will show that if is superspecial, then its standard…
The -numbers of non-hyperelliptic curves of genus 3 with cyclic automorphism group of order 6
Ryo Ohashi, Momonari Kudo, Shushi Harashita
In this paper, we study non-hyperelliptic curves of genus with cyclic automorphism group of order . Over an algebraically closed field of characteristic , such…
Possible topological phases in quantum anomalous Hall insulator/unconventional superconductor hybrid systems
Ryoi Ohashi, Shingo Kobayashi, Yukio Tanaka
Quantum anomalous Hall insulator (QAH)/-wave superconductor (SC) hybrid systems are known to be an ideal platform for realizing two-dimensional topological superconductors with…
Differential forms on the curves associated to Appell-Lauricella hypergeometric series and the Cartier operator on them
Ryo Ohashi, Shushi Harashita
Archinard studied the curve over associated to an Appell-Lauricella hypergeometric series and differential forms on its desingularization. In this paper, firstly a…
Theory of Tunneling Effect in 1D AIII-class Topological Insulator (Nanowire) Proximity Coupled with a Superconductor
Ryoi Ohashi, Yukio Tanaka, Keiji Yada
We study the tunneling effect in an AIII-class insulator proximity coupled with a spin-singlet -wave superconductor, in which three phases are characterized by the integer topol…