有限射影 meaning in English

finite projection

In this paper , we are concerned with the sizes of t - blocking sets , ( k , r ) - arcs and caps in finite projective spaces , not only giving one theorem an elementary proof , improving some theorem " s results , but also proving some new exact values
本文研究了有限射影空间中t - blocking集， arcs和caps中元素个数的上界值。不仅用自己的方法简化了某些定理的证明过程，改进了一些定理的结果，而且还证明了一些新的精确值和上界值。
( 1 ) state the appearance of block design and it ' s resolution . ( 2 ) formulate the history of ols ( orthogonal latin squares ) and show the role that euler ' s conjecture and macneish ' s conjecture on ols played in the progress of study on latin square . ( 3 ) state briefly the motivation that finite projective plan and finite field offer to the development of combinatorial design
( 1 )详述了18世纪中期提出的区组设计问题以及这些问题出现的多种形式及解决方法； ( 2 )对组合设计中正交拉丁方的历史予以阐述，分析了拉丁方问题的研究中欧拉猜想和麦克奈希猜想的作用； ( 3 )简述了有限射影几何及有限域在组合设计中的意义及其对组合设计理论发展的推动作用。