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6 papers · 1 filter
Dense optical and near-infrared monitoring of CTA 102 during high state in 2012 with OISTER: Detection of intra-night "orphan polarized flux flare"
Ryosuke Itoh, Yasushi Fukazawa, Yasuyuki T. Tanaka +35
CTA 102, classified as a flat spectrum radio quasar at z=1.037, produced exceptionally bright optical flare in 2012 September. Following Fermi-LAT detection of enhanced gamma-ray a…
Automorphisms of a non-type I C*-algebra
Akira Noguchi
Glimm's theorem says that a UHF algebra is almost embedded in a separable -algebra not of type I. Applying his methods we obtain a covariant version of his result; a UHF algeb…
On the stationary Navier-Stokes flow with isotropic streamlines in all latitudes on a sphere or a 2D hyperbolic space
Chi Hin Chan, Tsuyoshi Yoneda
In this paper, we show the existence of real-analytic stationary Navier-Stokes flows with isotropic streamlines in all latitudes in some simply-connected flow region on a rotating…
Spin-Triplet Superconductivity Induced by Longitudinal Ferromagnetic Fluctuations in UCoGe: Theoretical Aspect
Y. Tada, S. Fujimoto, N. Kawakami +6
Identification of pairing mechanisms leading to the unconventional superconductivity realized in copper-oxide, heavy-fermions, and organic compounds is one of the most challenging…
Giant Magnetoresistance Effect in the Metal-Insulator Transition of Pyrochlore Oxide Nd2Ir2O7
Kazuyuki Matsuhira, Masashi Tokunaga, Makoto Wakeshima +2
We investigated the magnetoresistance (MR) effect of the pyrochlore oxide Nd2Ir2O7, which shows a metal-insulator transition at T_MI =33 K. A small positive MR effect was observed…
A loop group method for Demoulin surfaces in the 3-dimensional real projective space
Shimpei Kobayashi
For a surface in the 3-dimensional real projective space, we define a Gauss map, which is a quadric in and called the first-order Gauss map. It will be shown that t…