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arXiv 1509.05097math.AP
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关于微分的一个非局部扩张

On a nonlocal extension of differentiation

Ravi Shankar

摘要:

我们研究一个推广了反微分问题的积分方程。我们制定了这个方程,用一个已知的非局部算子类似于那些适用于断裂力学和非局部扩散取代经典的衍生物。我们表明,该运营商弱收敛到经典的衍生物的非局部性参数为零。利用傅里叶变换,我们找到了积分方程的通解。我们表明,非局部反导数涉及一个无限维的功能,除了一个任意常数。然而,这些功能弱收敛到零的非局部性参数为零。对于特殊类型的积分核,我们证明了非局部反导数弱收敛到其经典的对应的非局部参数为零。

英文摘要:

We study an integral equation that extends the problem of anti-differentiation. We formulate this equation by replacing the classical derivative with a known nonlocal operator similar to those applied in fracture mechanics and nonlocal diffusion. We show that this operator converges weakly to the classical derivative as a nonlocality parameter vanishes. Using Fourier transforms, we find the general solution to the integral equation. We show that the nonlocal antiderivative involves an infinite dimensional set of functions in addition to an arbitrary constant. However, these functions converge weakly to zero as the nonlocality parameter vanishes. For special types of integral kernels, we show that the nonlocal antiderivative weakly converges to its classical counterpart as the nonlocality parameter vanishes.

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