Results 71 to 80 of about 531,318 (268)

Nonexistence of nonnegative solutions for parabolic inequalities in the half-space

Electronic Journal of Differential Equations, 2018
Based on the method of nonlinear capacity, we study the nonexistence of nonnegative monotonic solutions for the quasilinear parabolic inequality $u_t-\Delta_p u\ge u^q$. Also we study generalizations in the half-space in terms of parameters p and q.
Evgeny I. Galakhov, Olga A. Salieva, Liudmila A. Uvarova   +2 more
doaj  

Majorization, “useful” Csiszár divergence and “useful” Zipf-Mandelbrot law

Open Mathematics, 2018
In this paper, we consider the definition of “useful” Csiszár divergence and “useful” Zipf-Mandelbrot law associated with the real utility distribution to give the results for majorizatioQn inequalities by using monotonic sequences.
Latif Naveed, Pečarić Đilda, Pečarić Josip   +2 more
doaj   +1 more source

Stability, $l_{2}$ -Gain, and Robust $H_{\infty }$ Control for Switched Systems via ${N}$ -Step-Ahead Lyapunov Function Approach

IEEE Access, 2017
Unlike the traditional analysis and synthesis approach of a switched system that requires a monotonic decrease of Lyapunov function (LF), this paper investigates an N-step-ahead LF approach.
Yun Xie, Jiwei Wen, Sing Kiong Nguang, Li Peng   +3 more
doaj   +1 more source

On Bergh′s Inequality for Quasi-Monotone Functions

Journal of Mathematical Analysis and Applications, 1995
The following is a typical result of the paper: Let \(0\leq c\leq\infty\), \(C\geq1\) and ...
Pecaric, J.E., Persson, L.E.
openaire   +1 more source

Front Propagation Through a Perforated Wall

Communications on Pure and Applied Mathematics, EarlyView.
ABSTRACT We consider a bistable reaction– diffusion equation ut=Δu+f(u)$u_t=\Delta u +f(u)$ on RN${\mathbb {R}}^N$ in the presence of an obstacle K$K$, which is a wall of infinite span with many holes. More precisely, K$K$ is a closed subset of RN${\mathbb {R}}^N$ with smooth boundary such that its projection onto the x1$x_1$‐axis is bounded and that ...
Henri Berestycki, François Hamel, Hiroshi Matano   +2 more
wiley   +1 more source

Economic Complexity and Income Inequality in South Africa: The Moderating Roles of Human Capital and Institutional Quality

World
The paper examines the impact of economic complexity (EC) on income inequality in South Africa using Autoregressive Distributed Lag (ARDL) estimation techniques from 2000 to 2025.
Dorcas Gonese
doaj   +1 more source

A Geometric Characterization of Steady Laminar Flow

Communications on Pure and Applied Mathematics, EarlyView.
ABSTRACT We study the steady states of the Euler equations on the periodic channel or annulus. We show that if these flows are laminar (layered by closed non‐contractible streamlines which foliate the domain), then they must be either parallel or circular flows.
Theodore D. Drivas, Marc Nualart
wiley   +1 more source

Mapping Corporate Environment, Social, and Governance Discourses: Analysis of Korean Companies' Sustainability Reports (2014–2024)

Corporate Social Responsibility and Environmental Management, EarlyView.
ABSTRACT Corporations increasingly use Environmental, Social, and Governance (ESG) reports to articulate their commitments, priorities, and performance in sustainability governance. This study examines how Korean firms have configured and reconfigured their sustainability discourses across industries and time using 634 sustainability reports (2014–2024)
Taedong Lee, Sinjae Kang, Dian Wahyu Utami, Bohae Na   +3 more
wiley   +1 more source

An inequality for completely monotone functions

, 2022
An inequality, which combines the concept of completely monotone functions with the theory of divided differences, is proposed. It is a straightforward generalization of a result, recently introduced by two of the present authors.
Bitsouni, Vasiliki, Gialelis, Nikolaos, Marinescu, Dan-Stefan   +2 more
openaire   +2 more sources

Analytical stress solution framework for lined compressed air energy storage chambers and its application to safe burial depth determination and supporting effectiveness evaluation

Deep Underground Science and Engineering, EarlyView.
An analytical framework delivers a closed‐form stress solution for lined compressed air energy storage chambers, enabling the determination of the minimum safe burial depth. The solution quantitatively evaluates lining support effectiveness, offering a reliable tool for chamber design and optimization.
Zeyuan Sun, Cheng Zhao, Jinquan Xing, Qinyuan Luo   +3 more
wiley   +1 more source