1 citations · 1 across the 3 of their papers we have counts for
7 papers
An alternative proof of Miyashita's theorem in a skew polynomial ring II
Satoshi Yamanaka
Y. Miyashita gave characterizations of a separable polynomial and a Hirata separable polynomial in skew polynomial rings. In the previous paper, the author and S. Ikehata gave dire…
On Weakly Separable Polynomials in Skew Polynomial Rings
Satoshi Yamanaka
The notion of weakly separable extensions was introduced by N. Hamaguchi and A. Nakajima as a generalization of separable extensions. The purpose of this article is to give a chara…
Note on Morita equivalence in ring extensions
Satoshi Yamanaka
It seems that Morita invariance is a useful criterion for judging the importance of the classes of ring extensions concerned. Y. Miyashita introduced the notion of Morita equivalen…
The first direct imaging of the silhouette of a damped Lyman system along the line-of-sight to a background galaxy
Fuga Komori, Akio K. Inoue, Ken Mawatari +7
The H~{\sc i} gas distribution in damped Lyman absorbers (DLAs) has remained elusive due to the point-source nature of background quasar emission. Observing DLAs against spati…
JWST, ALMA, and Keck Spectroscopic Constraints on the UV Luminosity Functions at z~7-14: Clumpiness and Compactness of the Brightest Galaxies in the Early Universe
Yuichi Harikane, Akio K. Inoue, Richard S. Ellis +33
We present the number densities and physical properties of the bright galaxies spectroscopically confirmed at . Our sample is composed of 60 galaxies at $z_\mathrm{spec}…
JWST/NIRSpec spectroscopy of intermediate-mass quiescent galaxies at
Riku A. Sato, Akio K. Inoue, Yuichi Harikane +9
We present the analysis of three intermediate-mass quiescent galaxies (QGs) with stellar masses of at redshifts using NIRSpec low-resolutio…