English

Uniform convergence of Hankel transforms

Classical Analysis and ODEs 2018-12-06 v1

Abstract

We investigate necessary and/or sufficient conditions for the pointwise and uniform convergence of the weighted Hankel transforms Lν,μαf(r)=rμ0(rt)νf(t)jα(rt)dt,α1/2,r0,\mathcal{L}^\alpha_{\nu,\mu}f(r) = r^\mu\int_0^\infty (rt)^\nu f(t) j_\alpha(rt)\, dt, \quad \alpha\geq -1/2, \quad r\geq 0, where ν,μR\nu,\mu\in \mathbb{R} are such that 0μ+να+3/20\leq \mu+\nu\leq \alpha+3/2. We subdivide these transforms into two classes in such a way that the uniform convergence criteria is remarkably different on each class. In more detail, we have the transforms satisfying μ+ν=0\mu+\nu=0 (such as the classical Hankel transform), that generalize the cosine transform, and those satisfying 0<μ+να+3/20<\mu+\nu\leq \alpha+3/2, generalizing the sine transform.

Keywords

Cite

@article{arxiv.1812.01950,
  title  = {Uniform convergence of Hankel transforms},
  author = {A. Debernardi},
  journal= {arXiv preprint arXiv:1812.01950},
  year   = {2018}
}

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R2 v1 2026-06-23T06:32:35.775Z