Results 61 to 70 of about 54,206 (225)
Certification of Real Inequalities -- Templates and Sums of Squares
, 2014 We consider the problem of certifying lower bounds for real-valued multivariate transcendental functions. The functions we are dealing with are nonlinear and involve semialgebraic operations as well as some transcendental functions like $\cos$, $\arctan$,
Allamigeon, Xavier +3 more
core +3 more sources
Some new Inequalities for Differentiable Arithmetic-Harmonically Convex Functions
Kragujevac Journal of MathematicsIn this study, by using an integral identity together with both the Hölder and the power-mean inequalities for integrals we establish several new inequalities for differentiable arithmetic-harmonically-convex function. Also, we give some applications for special means.
Kadakal, Mahir +2 more
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The role of identification in data‐driven policy iteration: A system theoretic study
International Journal of Robust and Nonlinear Control, EarlyView.Abstract The goal of this article is to study fundamental mechanisms behind so‐called indirect and direct data‐driven control for unknown systems. Specifically, we consider policy iteration applied to the linear quadratic regulator problem. Two iterative procedures, where data collected from the system are repeatedly used to compute new estimates of ...
Bowen Song, Andrea Iannelli
wiley +1 more source
Quasi-arithmetic Means Inequalities Criteria for Differentiable Functions
Journal of Mathematics Research, 2015 Quasi-arithmetic means are defined for continuous, strictly monotone functions. In the case that functions are twice differentiable, we obtained criteria for inequalities between finite number of quasi-arithmetic means in additional and multiplicative case. Applications for H\"older and Minkowski type inequalities are given.
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On certain equations and inequalities involving the arithmetical functions φ(n) and d(n)
Notes on Number Theory and Discrete Mathematics, 2022 By using the results and methods of [1], we will study the equation \varphi(n) + d(n) = \frac{n}{2} and the related inequalities. The equation \varphi(n) + d^2(n)=2n will be solved, too.
József Sándor, Saunak Bhattacharjee
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Sustainable Development, EarlyView.ABSTRACT Certain attributes of large‐scale complex systems are often expressed through sets of indicators. For example, the sustainability of an entity, be it a nation, a city, an energy system, a corporation etc., can be effectively represented by indicators and corresponding data series.
Vassilis S. Kouikoglou +1 more
wiley +1 more source
Inequalities for multiplicative arithmetic functions
, 2011 We study arithmetic inequalities for multiplicative, sub(super)-multiplicative, sub(super)-homogeneous functions. Applications for the classical arithmetic functions are pointed out.
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Sustainable Development, EarlyView.ABSTRACT This study examines the interplay between climate change, violent conflict and forced migration in the Middle East and North Africa (MENA), focusing on asylum flows to the European Union (EU). By integrating high‐resolution climate, conflict and socioeconomic data spanning 2000 to 2023, we develop a comprehensive empirical framework to ...
Shifa Mathbout +4 more
wiley +1 more source
Sustainable Development, EarlyView.ABSTRACT There are increasing calls for a place‐based approach towards the Sustainable Development Goals that show their territorial diversity at subnational level. Based on 33 indicators, covering 13 SDGs and aggregated in three sub‐indexes (economy, social and environment), this paper develops a Sustainable Development Index for Rural and Urban Areas
Lucas Olmedo +3 more
wiley +1 more source
Regional Sustainability Assessment Under Risk and Uncertainty: A Water–Energy–Food Based Framework
Sustainable Development, EarlyView.ABSTRACT Regional sustainability assessment requires integrated structures that can examine the interactions between Water–Energy–Food (WEF) systems, socio‐economic risk conditions, and performance outcomes under uncertainty. This study proposes a multidimensional framework that combines a suitability index, composite sustainability indicators ...
Murat Oturakci
wiley +1 more source