Dimension Estimate of Almost Periodic Attractors by Simultaneous Diophantine Approximation
Dimension Estimate of Almost Periodic Attractors by Simultaneous Diophantine Approximation
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通过同时丢番图近似估计几乎周期性吸引子的维数
DOI:
10.1006/jdeq.1997.3318
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发表时间:
1997
影响因子:
2.4
通讯作者:
K. Naito
中科院分区:
文献类型:
--
作者:
K. Naito
Abstract In this paper we estimate fractal dimensions of almost periodic trajectories for a semilinear parabolic partial differential equation: ∂ u /∂ t − d ( t ) Δu + g ( t ) u ∋ f ( t ), where we assume periodicity: d ( t + α 1 )= d ( t ), g ( t + α 2 )= g ( t ) for irrational numbers α 1 , α 2 , which are linearly independent over the rationals, and f ( t +1)equals; f ( t ). By using simultaneous Diophantine approximation, we can show that the dimension of the almost periodic attractor is majorized by 1/ γ 1 +2/ γ 2 , where γ 1 is the minimum number of the exponents of Holder's conditions on the periodic functions and γ 2 is the secondary minimum.
DOI:
10.1007/978-1-4684-0313-8
发表时间:
1993-09
期刊:
--
影响因子:
--
作者:
R. Temam
通讯作者:
R. Temam