Results 41 to 50 of about 1,082 (143)

Slowly growing solutions of ODEs revisited

, 2017
Solutions of the differential equation $f''+Af=0$ are considered assuming that $A$ is analytic in the unit disc $\mathbb{D}$ and satisfies \begin{equation} \label{eq:dag} \sup_{z\in\mathbb{D}} \, |A(z)| (1-|z|^2)^2 \log\frac{e}{1-|z|} < \infty.
Gröhn, Janne
core   +1 more source

The Klein-Gordon equation, the Hilbert transform, and dynamics of Gauss-type maps

, 2020
A pair $(\Gamma,\Lambda)$, where $\Gamma\subset\mathbb{R}^2$ is a locally rectifiable curve and $\Lambda\subset\mathbb{R}^2$ is a {\em Heisenberg uniqueness pair} if an absolutely continuous (with respect to arc length) finite complex-valued Borel ...
Hedenmalm, Haakan, Montes-Rodriguez, Alfonso   +1 more
core   +1 more source

Does Sustainability Auditing Lead to Enhanced Corporate Governance, Environmental Performance, and Financial Outcomes? Empirical Evidence From High‐Impact Industries

Business Strategy and the Environment, EarlyView.
ABSTRACT This study employs hierarchical regression modelling on a survey of 550 firms from Nigeria and Ghana to examine the impact of sustainability auditing on corporate governance, environmental performance, and financial outcomes of high‐impact industries.
Mandella Osei‐Assibey Bonsu, Ying Wang, Grace Eghe‐Ikhurhe, Katie Hyslop   +3 more
wiley   +1 more source

Composition Operators and the Closure of Morrey Space in the Bloch Space

Journal of Function Spaces, Volume 2019, Issue 1, 2019., 2019
In this paper, we characterize the closure of the Morrey space in the Bloch space. Furthermore, the boundedness and compactness of composition operators from the Bloch space to the closure of the Morrey space in the Bloch space are investigated.
Nanhui Hu, Xiangling Zhu, Yoshihiro Sawano   +2 more
wiley   +1 more source

Strict singularity of a Volterra-type integral operator on $H^p$ [PDF]

, 2015
We prove that a Volterra-type integral operator $T_gf(z) = \int_0^z f(\zeta)g'(\zeta)d\zeta, \, z \in \mathbb D,$ defined on Hardy spaces $H^p, \, 1 \le p < \infty,$ fixes an isomorphic copy of $\ell^p,$ if the operator $T_g$ is not compact.
Miihkinen, Santeri
core   +2 more sources

Do Big Data Applications and Financial Innovation Lead to Enhanced Banking Performance? Evidence From the United Kingdom

International Journal of Finance &Economics, EarlyView.
ABSTRACT Big data and financial innovations are vital to enhancing the performance of banking institutions. However, limited evidence exists on the effects of big data applications and financial innovation on bank performance. This study addresses this gap by constructing a theoretical framework linking big data applications and financial innovations ...
Mandella Osei‐Assibey Bonsu, Yongsheng Guo   +1 more
wiley   +1 more source

Does the Integration of Fintech and Green Finance Enhance Sustainability Performance in the Banking Sector? Information Technology Governance as Moderator

Business Strategy and the Environment, Volume 34, Issue 8, Page 9954-9977, December 2025.
ABSTRACT This paper investigates the impact of Fintech and green finance on enhancing sustainability performance through information technology governance. We collected questionnaires from 611 banking institutions in Nigeria, Ghana, and Cameroon from May to October 2024 and analyzed them with Partial Least Squares‐Structural Equation Modeling and ...
Mandella Osei‐Assibey Bonsu, Ying Wang, Princess Rejoice Dankwa Nartey, Margaret Nana Amala   +3 more
wiley   +1 more source

Second‐Order Linear Differential Equations with Solutions in Analytic Function Spaces

Journal of Function Spaces, Volume 2019, Issue 1, 2019., 2019
This research is concerned with second‐order linear differential equation f′′ + A(z)f = 0, where A(z) is an analytic function in the unit disc. On the one hand, some sufficient conditions for the solutions to be in α‐Bloch (little α‐Bloch) space are found by using exponential type weighted Bergman reproducing kernel formula.
Jianren Long, Yu Sun, Shimei Zhang, Guangming Hu, Ruhan Zhao   +4 more
wiley   +1 more source

Local spectral theory for subordinated operators: The Cesàro operator and beyond

Journal of the London Mathematical Society, Volume 112, Issue 2, August 2025.
Abstract We study local spectral properties for subordinated operators arising from C0$C_0$‐semigroups. Specifically, if T=(Tt)t⩾0$\mathcal {T}=(T_t)_{t\geqslant 0}$ is a C0$C_0$‐semigroup acting boundedly on a complex Banach space and Hν=∫0∞Ttdν(t)$$\begin{equation*} \mathcal {H}_\nu = \int _{0}^{\infty } T_t\; d\nu (t) \end{equation*}$$is the ...
Eva A. Gallardo‐Gutiérrez, F. Javier González‐Doña   +1 more
wiley   +1 more source

Dynamic Prediction for Accuracy Maintaining Reliability of Superprecision Rolling Bearing in Service

Shock and Vibration, Volume 2018, Issue 1, 2018., 2018
A dynamic prediction method for accuracy maintaining reliability (AMR) of superprecision rolling bearings (SPRBs) in service is proposed by effectively fusing chaos theory and grey system theory and applying stochastic processes. In this paper, the time series of a vibration signal is used to characterize the state information for SPRB, and four ...
Liang Ye, Xintao Xia, Zhen Chang, Chao Tao   +3 more
wiley   +1 more source