POLYNOMIAL SYSTEMS - A LOWER-BOUND FOR THE HILBERT-NUMBERS

被引:68
作者
CHRISTOPHER, CJ
LLOYD, NG
机构
[1] Dept of Maths, Univ of Wales, Aberystwyth
来源
PROCEEDINGS OF THE ROYAL SOCIETY-MATHEMATICAL AND PHYSICAL SCIENCES | 1995年 / 450卷 / 1938期
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D O I
10.1098/rspa.1995.0081
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摘要
Let H-n be the maximum possible number of limit cycles of systems x= P(x, y), y = Q(x, y), where P and Q are polynomials of degree at most n. We are concerned with the rate of growth of H-n as n increases: it is known that H-n greater than or equal to kn(2) for some constant k. In this paper we show that H-n grows at least as rapidly as n(2) log n.
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页码:219 / 224
页数:6
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