CONSTRUCTIONS

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On the Mechanization of Straightedge and Compass Constructions被引量：1
《Journal of Systems Science & Complexity》2019年第1期124-149,共26页SCHRECK Pascal 
supported by Strasbourg University and French CNRS
The geometric constructions obtained with only straightedge and compass are famous and play a special role in the development of geometry. On the one hand, the constructibility of ?gures is a key ingredient in Euclid ...
关键词：Geometric KNOWLEDGE-BASED systems regular CHAINS straightedge and COMPASS constructibility TRIANGLE problems Wu's method 
Constructions on Approximately Mutually Unbiased Bases by Galois Rings被引量：3
《Journal of Systems Science & Complexity》2015年第6期1440-1448,共9页LI Jin FENG Keqin 
supported by the Natural Science Foundation of China under Grant No.61370089;the Tsinghua National Laboratory for Information Science and Technology;by the Fundamental Research Funds for the Central Universities under Grant No.JZ2014HGBZ0349;by Science and Technology on Information Assurance Lab.KJ-12-01
Several new series of approximately mutually unbiased bases are constructed by using Gauss sums and Jacobi sums over Galois rings GR(p2, r), and the tensor method.
关键词：MUB Galois rings Gauss sums Jacobi sums tensor method 
CONSTRUCTIONS OF UNITARY SPACE-TIME CODES WITH FULL DIVERSITY
《Journal of Systems Science & Complexity》2013年第4期650-664,共15页TONG Hongxi 
The problem of constructing unitary space-time codes with high diversity product has been studied in many prior works.Recently,constructions of parametric fully diverse unitary space-time codes for prime number antenn...
关键词：Differential space-time modulation diversity products full diversity parametric space-time codes unitary space-time codes. 
CONSTRUCTIONS OF THREE-TRANSMIT-ANTENNA SPACE-TIME CODES被引量：3
《Journal of Systems Science & Complexity》2007年第3期381-385,共5页Hongxi TONG .Fei YU 
The research is supported by the National Natural Science Foundation of China under Grant No.60673074.
In this paper, we give design methods for three-transmit-antenna space-time codes which have reasonable parameters. A few examples are given to show that some unitary space-time codes constructed with our methods are ...
关键词：Differential space-time modulation diversity products unitary space-time codes. 
SOME　NEW　CONSTRUCTIONS　OF　CARTESIAN　AUTHENTICATION　CODES　FROM　SYMPLECTIC　GEOMETRY被引量：31
《Systems Science and Mathematical Sciences》1994年第4期317-327,共11页YOU Hong GAO You(Northeast Normal University, Changchun 130024) 
NationalNaturalScienceFoundationofChina.ThenthevectorspaceVZ.(Fa)withtheaboveactionofthegroupSr..(Fa)iscalledtheZydimensionalsymplecticspace.LetPbeallm--dimensionalsubspaceofVZ.(FO).WeusethesameletterPtodenoteamatrixrepresentatiollofP,i.e
ＳＯＭＥＮＥＷＣＯＮＳＴＲＵＣＴＩＯＮＳＯＦＣＡＲＴＥＳＩＡＮＡＵＴＨＥＮＴＩＣＡＴＩＯＮＣＯＤＥＳＦＲＯＭＳＹＭＰＬＥＣＴＩＣＧＥＯＭＥＴＲＹＹＯＵＨｏｎｇ；ＧＡＯＹｏｕ（ＮｏｒｔｈｅａｓｔＮｏｒｍａｌＵｎｉｖｅｒ...
关键词：CARTESIAN AUTHENTICATION code construction SYMPLECTIC GEOMETRY 
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