著者
木下 保
巻号頁・発行日
2012

科学研究費助成事業(科学研究費補助金)研究成果報告書:基盤研究(C)2008-2011
著者
久保 隆徹
巻号頁・発行日
2012

科学研究費助成事業(科学研究費補助金)研究成果報告書:若手研究(B)2009-2011
著者
伊藤 誠
巻号頁・発行日
2012

科学研究費助成事業(科学研究費補助金)研究成果報告書:基盤研究(A)2009-2011
著者
三谷 純
巻号頁・発行日
2012

科学研究費助成事業(科学研究費補助金)研究成果報告書:若手研究(B)2008-2011
著者
横山 亜紀子
巻号頁・発行日
2012

科学研究費助成事業(科学研究費補助金)研究成果報告書:基盤研究(C)2008-2010
著者
高木 義之
出版者
[出版者不明]
巻号頁・発行日
2008-06

制度:新 ; 報告番号:甲2670号 ; 学位の種類:博士(工学) ; 授与年月日:2008/6/23 ; 早大学位記番号:新4842
著者
早瀬 康裕
巻号頁・発行日
2012

科学研究費助成事業(科学研究費補助金)研究成果報告書:若手研究(B)2009-2011
著者
高野 晋吾
巻号頁・発行日
2012

科学研究費助成事業(科学研究費補助金)研究成果報告書:挑戦的萌芽研究2009-2011
著者
坂本 瑞樹
巻号頁・発行日
2012

科学研究費助成事業(科学研究費補助金)研究成果報告書:挑戦的萌芽研究2009-2011
著者
清水 知子
巻号頁・発行日
2012

科学研究費助成事業(科学研究費補助金)研究成果報告書:若手研究(B)2009-2011
著者
千葉 建
巻号頁・発行日
2012

科学研究費助成事業(科学研究費補助金)研究成果報告書:若手研究(B)2009-2011
著者
濱下 武志
出版者
東京大学東洋文化研究所
雑誌
東洋文化研究所紀要 (ISSN:05638089)
巻号頁・発行日
vol.116, pp.61-106, 1992-03

Large-scale migration occurred from the late 19th century to the 1930's.There were 3 directions: from north to northeast, from inland areas to the coastal big cities, and from the south to southeast Asia; the southward and northward labor migrations being roughly equal.There was a short-term, periodic migration of farm workers and the like along with long-term or permanent abode-oriented (immigration) type of migration.Agriculture and mining in the northeastern region, industry in the coastal region, and commerce and sugar or rubber plantations in southeast Asia, were popular.In each of these cases, the provincial, affiliated relations of the migrants’ native places were maintained without interruption and, based on the development of various organizations mediating the migration, labor migration was made easy.However, in terms of proficiency of the labor force and the relatively low correlation with industry should be noted.With regard to the transfer of funds, there existed locally a country-wide remittance network of Shanxi bankers and the Remitting Houses directing remittances of Chinese merchants residing abroad in southeast Asia, which formed an international remittance network.The latter possessed several remittance routes based on Singapore and Hong Kong along with diverse exchange remittance functions.The client in southeast Asia pays into the Remitting Houses with local currency.It is then remitted to the agent in Hong Kong by Hong Kong dollars, exchanged for the currency of the People's Republic of China, and sent to agents in Fujian and Guangdong from where it is submitted to the remittee through the agent at home.This route was the established mode of the Remitting Houses, but even within this process there existed such forms as cancellation by countervailing by exchange trading in Singapore and Hong Kong, the abbreviation of cash remittance through merchandise transactions, and countervailing through trade connections by forming directly a settling connection with Guangdong and Amoy where remittances were concentrated.Selection was made among these, depending upon the price of merchandise and exchange rate in the market, and involved a close relationship between the southern Chinese economy and the money markets in Hong Kong and Singapore.Based on these general background, this paper tried to examine the history of emigration of Chao-Zhou people in the east Guangdong province and their relationship with their home land.
著者
北村 嘉恵
巻号頁・発行日
2010-09-22
著者
Sato Yosuke Inoue Shutaro Suzuki Akira Nabeshima Katsusuke Sakai Ko
出版者
Elsevier Ltd.
雑誌
Journal of symbolic computation (ISSN:07477171)
巻号頁・発行日
vol.46, no.5, pp.622-632, 2011-05
被引用文献数
12 16

In recent years, Boolean Gröbner bases have attracted the attention of many researchers, mainly in connection with cryptography. Several sophisticated methods have been developed for the computation of Boolean Gröbner bases. However, most of them only deal with Boolean polynomial rings over the simplest coefficient Boolean ring View the MathML source. Boolean Gröbner bases for arbitrary coefficient Boolean rings were first introduced by two of the authors almost two decades ago. While the work is not well-known among computer algebra researchers, recent active work on Boolean Gröbner bases inspired us to return to their development. In this paper, we introduce our work on Boolean Gröbner bases with arbitrary coefficient Boolean rings.