Results 41 to 50 of about 697 (205)

A Unifying Approach to Self‐Organizing Systems Interacting via Conservation Laws

Advanced Intelligent Discovery, EarlyView.
The article develops a unified way to model and analyze self‐organizing systems whose interactions are constrained by conservation laws. It represents physical/biological/engineered networks as graphs and builds projection operators (from incidence/cycle structure) that enforce those constraints and decompose network variables into constrained versus ...
F. Barrows, G. Zhang, S. Anand, Z. Chen, J. Lin, A. Desai, S. Martiniani, F. Caravelli   +7 more
wiley   +1 more source

“It Is Much Safer to Be Sparse than Connected”: Safe Control of Robotic Swarm Density Dynamics with PDE Optimization with State Constraints

Advanced Intelligent Systems, EarlyView.
This paper proposes a novel control framework to ensure safety of a robotic swarm. A feedback optimization controller is capable of driving the swarm toward a target density while keeping risk‐zone exposure below a safety threshold. Theory and experiments show how safety is more effectively achieved for sparsely connected swarms.
Longchen Niu, Gennaro Notomista
wiley   +1 more source

Fixed Point Results for Multi-Valued Contractions in b−Metric Spaces and an Application

Mathematics, 2019
In this paper, by characterizing a weak contractive condition based on using C − functions and α − admissible multi-valued mapping of type S, we present some fixed point results for ( α , F ) − admissible ...
Haitham Qawaqneh, Mohd Salmi Md Noorani, Wasfi Shatanawi, Hassen Aydi, Habes Alsamir   +4 more
doaj   +1 more source

Risk‐aware safe reinforcement learning for control of stochastic linear systems

Asian Journal of Control, EarlyView.
Abstract This paper presents a risk‐aware safe reinforcement learning (RL) control design for stochastic discrete‐time linear systems. Rather than using a safety certifier to myopically intervene with the RL controller, a risk‐informed safe controller is also learned besides the RL controller, and the RL and safe controllers are combined together ...
Babak Esmaeili, Nariman Niknejad, Hamidreza Modares   +2 more
wiley   +1 more source

Does Stakeholder Pressure Promote Green Innovations and Performance of Agribusiness Companies?

Business Strategy and the Environment, EarlyView.
ABSTRACT The sustainability of agribusiness companies is guided by multiple, sometimes paradoxical, interests. Green innovation is strategic for sustainable development; however, literature shows inconsistencies regarding its impact on environmental and economic‐financial performance.
Vanderlei dos Santos, Ilse Maria Beuren, Adrian Odelli, Rodrigo Rengel, Daniele Cristina Bernd   +4 more
wiley   +1 more source

Some PPF Dependent Fixed Point Theorems for Generalized α-F-Contractions in Banach Spaces and Applications

Mathematics, 2018
In this paper, we introduce the concepts of an α -admissible nonself-mapping, an α -F-contractive nonself-mapping, a weak α -F-contractive nonself-mapping, and a generalized α -F-contractive nonself-mapping and ...
Yeol Je Cho, Shin Min Kang, Peyman Salimi   +2 more
doaj   +1 more source

Evaluation of Governance, Environmental, Socioeconomic, and Financial Dimensions Through an Integrated Multicriteria Decision‐Making Approach

Business Strategy and the Environment, EarlyView.
ABSTRACT Sustainable governance depends on the joint functioning of institutional quality, fiscal discipline, environmental performance, and socioeconomic inclusion. However, many composite indicators rely on subjective weighting schemes and leave the structural role of governance underspecified.
Ömer Faruk Rençber, Eda Zorkirişçi, Abdulkadir Aksoy, Zehra Çelik   +3 more
wiley   +1 more source

Common Fixed Point Results on b-Metric Spaces for Generalized Rational Type ϑ,ψ,φ-Weakly Contractive Mappings With Applications

Abstract and Applied Analysis
This paper focuses on existence and uniqueness of common fixed points for a pair of self-mapping satisfying generalized rational type ϑ,ψ,φ-weak contractive condition in which one of the mapping is α-admissible with respect to the other and weakly ...
Albray Gebremariam Kalo, Kidane Koyas Tola, Haider Ebrahim Yesuf   +2 more
doaj   +1 more source

F(ψ,φ) $F(\psi,\varphi)$-Contractions for α-admissible mappings on M-metric spaces

Fixed Point Theory and Applications, 2018
In this paper, we introduce certain α-admissible mappings which are F(ψ,φ) $F(\psi,\varphi)$-contractions on M-metric spaces, and we establish some fixed point results.
Hossein Monfared, Mehdi Asadi, Mahdi Azhini, Donal O’Regan   +3 more
doaj   +1 more source

Partial identification with categorical data and nonignorable missing outcomes

Canadian Journal of Statistics, EarlyView.
Abstract Nonignorable missing outcomes are common in real‐world datasets and often require strong parametric assumptions to achieve identification. These assumptions can be implausible or untestable, and so we may wish to forgo them in favour of partially identified models that narrow the set of a priori possible values to an identification region.
Daniel Daly‐Grafstein, Paul Gustafson
wiley   +1 more source