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外国数学事件与数学家之间关系的初步研究——兼论外国数学事件的地理分布
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作者 贾文毓 《科学学研究》 CSSCI 北大核心 2004年第z1期5-9,共5页
通过统计的方法,就1501~1980年间外国的数学事件与数学家之间的关系进行了分析研究,得出的结论是:在不同时段,意、英、法、德、美各领风骚;美国虽然现在鹤立鸡群,但2040年后将可能风光不再.
关键词 数学事件 数学 创造性 美国
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Public Key Cryptosystem Based on Two Sided Action of Different Exotic Semirings 被引量:1
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作者 Mariana Durcheva 《Journal of Mathematics and System Science》 2014年第1期6-13,共8页
The idempotent semirings Rmax and Rmin play a crucial role in several areas of mathematics and their applications such as discrete mathematics, algebraic geometry, computer science, computer languages, linguistic prob... The idempotent semirings Rmax and Rmin play a crucial role in several areas of mathematics and their applications such as discrete mathematics, algebraic geometry, computer science, computer languages, linguistic problems, optimization theory, discrete event systems, fuzzy logics. In this paper we consider the expansion of the semirings Rmax and Rmin with residuals and describe how to use these expended semirings in public key cryptography. 展开更多
关键词 Public key cryptosystem exotic semirings semiring action residuals.
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