Acta mathematica scientia,Series A ›› 1999, Vol. 19 ›› Issue (3): 307-311.
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Abstract:
IN THIS paper,we consider a class of irrational rumber which can be approximated by rational number at most exponental order,Applications are given in partial differential equation and dynamical systems.
Key words: Ｄｉｏｐｈａｎｔｉｎｅａｐｐｒｏｘｉｍａｔｉｏｎ, Ｇｅｖｒｅｙｃｌａｓｓ, Ｈｙｐｏｅｌｌｉｐｔｉｃｉｔｙ, Ｌｉａｐｕｎｏｖｓｔａｂｉｌｉｔｙ, Ａｌｍｏｓｔｐｅｒｉｏｄｉｃｍｏｔｉｏｎ．
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Chen Wwenyi Tian Yan . Diophantine Approximation,Gevrey Hypoellipticity and Almost Periodic Motion on the Torus T2[J].Acta mathematica scientia,Series A, 1999, 19(3): 307-311.
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http://121.43.60.238/sxwlxbA/EN/Y1999/V19/I3/307
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