Yong-Cheol Kim

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20032005

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math.CA2004

Note on the Dirichlet Approximation Theorem

Yong-Cheol Kim

We survey the classical results of the Dirichlet Approximation Theorem.

math.CA2003

Weak type estimates on certain Hardy spaces for smooth cone type multipliers

Sunggeum Hong, Yong-Cheol Kim

Let $ϱ \in C^{\infty} (R^{d} ∖ {0})$ be a non-radial homogeneous distance function satisfying $ϱ (t ξ) = tϱ (ξ)$ . For $f \in S (R^{d + 1})$ and $δ…

math.CA2003

Weak type estimates of the maximal quasiradial Bochner-Riesz operator on certain Hardy spaces

Yong-Cheol Kim

Let ${A_{t}}_{t > 0}$ be the dilation group in $R^{n}$ generated by the infinitesimal generator $M$ where $A_{t} = exp (M lo g t)$ , and let $\varrho\in C^{\infty}({\Bbb R}^n\setminus…