著者

岡田 幾太郎

出版者

近畿大学

雑誌

近畿大学九州工学部研究報告 (ISSN:13459430)

巻号頁・発行日

vol.28, pp.89-97, 2000-03-01

---

The polar triangle for a hyperbolic triangle is constructed, and a sort of duality between them just like one in the case of the spherical geometry is found. Also, it is found that some formulas which are foundamental in the hyperbolic trigonometry correspond one another in the duality.

著者

橋冨 博喜

出版者

近畿大学

雑誌

近畿大学九州工学部研究報告 (ISSN:13459430)

巻号頁・発行日

vol.29, pp.149-160, 2001-03-01

---

A house that was built at the late 19th century, remains at Kurume City in Fukuoka Prefecture. Now the Yamada family lives in this house, but formerly this was Sakamoto Hanjiro's parents' house. Sakamoto Hanjiro was born there at 1882 and had been lived with his mother until 1902. At the same year he went to Tokyo to be a painter. This is a report on nine sliding screens which were kept by the Yamada family, and which were donated to The Boards of Education of Kurume City from the Yamada family at 1992. On these sliding screens, there are some pictures that were painted by a few painters from early Meiji period to 1909. It is possible to presume that some works of these were painted by Sakamoto or his friend Aoki Shigeru. And two works which I think Sakamoto had painted, contain several elements of western-style paintings in the late Edo period. Up to this time no attention had been paid to these elements in early Sakamoto's paintings. When we examine what the essence of his paintings are, it would be very useful for us.