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Ritt-Wu's Characteristic Set Method For Ordinary Di®erence Polynomial Systems With Arbitrary Ordering
dierence polynomial ascending chain characteristic set Ritt-Wu's zero decomposition theorem
2013/9/9
In this paper, a new Ritt-Wu's characteristic set method for ordinary di®erence systems is proposed, which is valid for any admissible ordering. New deˉnition for irreducible chains and new zero ...
A New Characteristic of Möbius Transformations by Use of Apollonius Points of Pentagons
Mö bius transformations Apollonius points of pentagons
2010/2/26
In this paper, we give a new characterization of Möbius transformations. To this end, a new concept of ''Apollonius points of pentagons'' is used.
Splitting of Sharply 2-Transitive Groups of Characteristic 3
Sharply 2-transitive groups Permutation groups
2010/2/26
We give a group theoretic proof of the splitting of sharply 2-transitive groups of characteristic 3.