Generalized Fresnel integrals and fractal properties of related spirals

Generalized Fresnel integrals and fractal properties of related spirals
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相关螺旋的广义菲涅尔积分和分形性质

DOI:
10.1016/j.amc.2008.09.009
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发表时间:
2008
期刊:
Appl. Math. Comput.
影响因子:
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通讯作者:
V. Županović
V. Županović
中科院分区:
--
文献类型:
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作者:
Luka Korkut;Domagoj Vlah;D. Zubrinic;V. Županović

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本文得到了广义Fresnel积分x(t)= tcosq(s)ds的一个新的渐近展开式,其中q(s)在s→∞时≠ sp,且p>1.通过一个简单的迭代算法定义的扩展的条款。利用这一点,我们证明了相关的q-回旋线,也称为广义欧拉或Cornu螺旋线的盒维数等于d= 2 p/(2 p-1)。此外,这条曲线是Minkowski可测的,我们计算它的d维Minkowski内容。通过对相应啁啾的研究,我们还发现了菲涅耳积分的振荡维数。
We obtain a new asymptotic expansion of generalized Fresnel integrals x(t)=∫0tcosq(s)ds for large t, where q(s)∼spwhen s→∞, and p>1. The terms of the expansion are defined via a simple iterative algorithm. Using this we show that the box dimension of the related q-clothoid, also called the generalized Euler or Cornu spiral, is equal to d=2p/(2p-1). Furthermore, this curve is Minkowski measurable, and we compute its d-dimensional Minkowski content. We also find oscillatory dimension of Fresnel integrals by studying the corresponding chirps.