Quy Nhon University

output

20092025

most citedImproved Dynamical Constraints on the Masses of the Central Black Holes in Nearby Low-mass Early-type Galactic Nuclei And the First Black Hole Determination for NGC 205

165 citations

Showing math.CAShow all

7 papers · 1 filter

math.CA2017★ 12 cited

Hausdorff operators on holomorphic Hardy spaces and applications

Ha Duy Hung, Luong Dang Ky, Thai Thuan Quang

The aim of this paper is to characterize the nonnegative functions $φ$ defined on $(0, \infty)$ for which the Hausdorff operator $$\mathscr H_φf(z)= \int_0^\infty f\left(\frac{z}{t}…

math.CA2017

Norm of the Hausdorff operator on the real Hardy space $H^{1} (R)$

Ha Duy Hung, Luong Dang Ky, Thai Thuan Quang

Let $φ$ be a nonnegative integrable function on $(0, \infty)$ . It is well-known that the Hausdorff operator $H_{φ}$ generated by $φ$ is bounded on the real Hardy space $H^1(\…

math.CA2016

Atomic decomposition and weak factorization in generalized Hardy spaces of closed forms

Aline Bonami, Justin Feuto, Sandrine Grellier +1

We give an atomic decomposition of closed forms on R n , the coefficients of which belong to some Hardy space of Musielak-Orlicz type. These spaces are natural generalizations of w…

math.CA2015

On weak $^{*}$ -convergence in the localized Hardy spaces $H_{ρ}^{1} (X)$ and its application

Dinh Thanh Duc, Ha Duy Hung, Luong Dang Ky

Let $(X, d, μ)$ be a complete RD-space. Let $ρ$ be an admissible function on $X$ , which means that $ρ$ is a positive function on $X$ and there exist posi…

math.CA2014

On the product of functions in $B M O$ and $H^{1}$ over spaces of homogeneous type

Luong Dang Ky

Let $X$ be an RD-space, which means that $X$ is a space of homogeneous type in the sense of Coifman-Weiss with the additional property that a reverse doubling pro…

math.CA2014

An Hardy estimate for commutators of pseudo-differential operators

Ha Duy Hung, Luong Dang Ky

Let $T$ be a pseudo-differential operator whose symbol belongs to the Hörmander class $S_{ρ, δ}^{m}$ with $0 \leq δ < 1, 0 < ρ \leq 1, δ \leq ρ$ and $- (n + 1) < m \leq - (n + 1) (1 - ρ)$ . In presen…

Hausdorff operators on holomorphic Hardy spaces and applications

Norm of the Hausdorff operator on the real Hardy space H1(R)

Atomic decomposition and weak factorization in generalized Hardy spaces of closed forms

On weak∗-convergence in the localized Hardy spaces Hρ1​(X) and its application

On the product of functions in BMO and H1 over spaces of homogeneous type

An Hardy estimate for commutators of pseudo-differential operators

Norm of the Hausdorff operator on the real Hardy space $H^{1} (R)$

On weak $^{*}$ -convergence in the localized Hardy spaces $H_{ρ}^{1} (X)$ and its application

On the product of functions in $B M O$ and $H^{1}$ over spaces of homogeneous type