Zobrazeno 1 - 10
of 39
pro vyhledávání: '"Tadashi Ashikaga"'
Autor:
Tadashi Ashikaga1 ashikaga@mail.tohoku-gakuin.ac.jp
Publikováno v:
Kyoto Journal of Mathematics. 2019, Vol. 59 Issue 4, p993-1039. 47p.
Autor:
Tadashi Ashikaga
Publikováno v:
Demonstratio Mathematica. 43:263-276
The signature of fibered complex surfaces is sometimes localized at finite fiber germs. We analyze this phenomenon by using datum of local monodromy in the mapping class group and a certain rational divisor on the moduli space of stable curves.
Publikováno v:
Journal of the Japan Society for Technology of Plasticity. 49:891-895
Autor:
Tadashi Ashikaga
Publikováno v:
Tohoku Math. J. (2) 67, no. 3 (2015), 323-347
We study a toric modification of Fujiki-Oka type for cyclic quotient singularities. Especially the behavior of rational Chow rings, orbifold signatures and so on are explicitly calculated. As a result, we extend Zagier's reciprocity for higher-dimens
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::8381d29e2a7c862af795ec56bfb15675
http://projecteuclid.org/euclid.tmj/1446818556
http://projecteuclid.org/euclid.tmj/1446818556
Publikováno v:
IEEJ Transactions on Industry Applications. 124:743-749
Publikováno v:
2014 International Power Electronics Conference (IPEC-Hiroshima 2014 - ECCE ASIA).
This paper presents a comparison study of various motors for application to an electric vehicle (EV) and the potentiality of a ferrite magnet motor as a candidate for rare-earth-less motor for an EV. The rotor shape of the proposed ferrite magnet mot
Autor:
Tatsuya, Arakawa, Tadashi, Ashikaga
Publikováno v:
東北數學雜誌. Second series = Tohoku mathematical journal. Second series. 53(3):369-394
We construct local splitting families of hyperelliptic pencils so that the original complicated degenerate fiber decomposes into several simple degenerate fibers. In some sense, our trial is a generalization to hyperelliptic curves of arbitrary genus
Publikováno v:
IEEJ Transactions on Industry Applications. 120:1351-1359
Autor:
Tadashi Ashikaga
Publikováno v:
The Journal of The Institute of Electrical Engineers of Japan. 117:18-21
Autor:
Masaaki Date, Tadashi Ashikaga, Mori Masato, Takayuki Mizuno, Kazutoshi Nagayama, Isao Matsuda
Publikováno v:
IEEJ Transactions on Industry Applications. 117:688-695
In attempt to improve the constant power operation properties of the induction motor (hereafter, IM) for electric vehicles, we have developed a six- phase pole change IM (hereafter, six-phase PCIM). The six- phase PCIM can expand the constant power o