The theory of rings of quotients has its origin in the work of 0. Ore and K. Asano on the construction of the total ring of fractions, in the 1930's and 40's. But the subject did not really develop until the end of the 1950's, when a number of impor
Twenty-five years have passed since the publication of the Russian version of the book Estimation of Dependencies Based on Empirical Data (EDBED for short). Twentyfive years is a long period of time. During these years many things have happened. Loo
国际地球物探协会组织推出的最新地震数据方面的标准 SEG是the Society of Exploration Geophysicists(勘探地球物理家学会)的缩写。它是一个非赢利性质的组织,成立于1930年,旨在推动地球物理科学的进步并加强对地球物理学者的培养教育,在全世界129个国家拥有2500多名成员。 SEGY rev0 是1975年推出的。
