Results 91 to 100 of about 3,053 (263)

Inequalities for monotonic arrangements of eigenvalues

open access: yesLinear Algebra and its Applications, 1995
The authors correct, fill gaps, and extend some results of \textit{N. Komaroff} [Linear Algebra Appl. 140, 155-161 (1990; Zbl 0713.15006)] on inequalities for sequence rearrangements of eigenvalues of matrices and their products.
Cain, Bryan E.   +2 more
openaire   +1 more source

T(w)o Patch or Not T(w)o Patch: A Novel Biocontrol Model

open access: yesMathematical Methods in the Applied Sciences, EarlyView.
ABSTRACT A number of top‐down biocontrol models have been proposed where the introduced predators' efficacy is enhanced via the provision of additional food (AF). However, if the predator has a pest‐dependent monotone functional response, pest extinction is unattainable. In the current manuscript, we propose a model where a predator with pest‐dependent
Urvashi Verma   +2 more
wiley   +1 more source

A spatially-explicit assessment on equality of Urban Green Space Coverage across 32 major cities in China [PDF]

open access: yesThe International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences
Greenspace is an important urban component for providing ecosystem service and protecting human health. And the need for “providing universal access to greenspace for urban residents” has been specified in the 11th Sustainable Development ...
P. Zhang   +8 more
doaj   +1 more source

Fractional Moment Theory for Anomalous Transport: A Unified Framework for Lévy Flights, Fractals, and Complex Dynamical Systems

open access: yesMathematical Methods in the Applied Sciences, EarlyView.
ABSTRACT We develop a unified mathematical framework extending classical moment theory from discrete integer orders to a continuous spectrum of real orders f>0$$ f>0 $$, providing a systematic statistical characterization of complex systems exhibiting power‐law behavior.
Farrukh A. Chishtie
wiley   +1 more source

Gibbs variational principles and Boltzmann irreversible theorem

open access: yesRevista Brasileira de Ensino de Física
We analyze the Gibbs variational principles associated with the probability distributions of (i) an isolated system and (ii) a system at constant temperature.
Mário J. de Oliveira, Silvio R. Salinas
doaj   +1 more source

Nonlinear Dynamics of a Passive Walker: Bifurcation and Stability Insights With Spring and Damper Mechanics

open access: yesInternational Journal of Mechanical System Dynamics, EarlyView.
ABSTRACT This study explores the nonlinear dynamics associated with a passive dynamic walker (PDW), focusing on the bifurcation and stability insights derived from spring and damper mechanics. PDWs, which rely on gravity for stable locomotion without active control, exhibit a rich spectrum of behaviors, from periodic to chaotic motion.
Zhongqu Xie   +8 more
wiley   +1 more source

A Novel Two‐Stage Flexible Flow Shop Batch Scheduling Model for Grinding Workshops

open access: yesNaval Research Logistics (NRL), EarlyView.
ABSTRACT The growing need for data storage in data centers has increased the demand for mechanical hard disks due to their low cost and high reliability. Aluminum substrates are the most popular base plates for mechanical hard disks because of their high hardness and low cost.
Jun Xu   +4 more
wiley   +1 more source

Some Inequalities for the -Curvature Image

open access: yesJournal of Inequalities and Applications, 2009
Lutwak introduced the notion of -curvature image and proved an inequality for the volumes of convex body and its -curvature image. In this paper, we first give an monotonic property of -curvature image. Further, we establish two inequalities for the
Daijun Wei, Yu Xiang, Weidong Wang
doaj  

Towards an equivalence between maximal entanglement and maximal quantum nonlocality

open access: yesNew Journal of Physics, 2018
While all bipartite pure entangled states are known to generate correlations violating a Bell inequality, and are therefore nonlocal, the quantitative relation between pure state entanglement and nonlocality is poorly understood.
Victoria Lipinska   +3 more
doaj   +1 more source

On Order Restricted Inference in Multi‐Step Stage Life Testing for a General Family of Distributions

open access: yesNaval Research Logistics (NRL), EarlyView.
ABSTRACT Recently, k$$ k $$‐step stage life testing (SLT) has been proposed by Laumen and Cramer (2021) as a natural extension of progressive censoring with fixed censoring times (PC‐FCT) as well as of simple step‐stress accelerated life testing (SSALT).
Erhard Cramer   +2 more
wiley   +1 more source

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