Results 11 to 20 of about 168,117,835 (293)
Hamiltonian and Variational Linear Distributed Systems [PDF]
, 2002 We use the formalism of bilinear- and quadratic differential forms in order to study Hamiltonian and variational linear distributed systems. It was shown in [1] that a system described by ordinary linear constant-coefficient differential equations is ...
Rapisarda, P. +7 more
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Linear Hamiltonian behaviors and bilinear differential forms [PDF]
, 2004 We study linear Hamiltonian systems using bilinear and quadratic differential forms. Such a representation-free approach allows us to use the same concepts and techniques to deal with systems isolated from their environment and with systems subject to ...
Rapisarda, P. +7 more
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Characterization of solutions of the discrete-time algebraic Riccati equation based on quadratic difference forms [PDF]
, 2006 This paper is concerned with a characterization of all symmetric solutions to the discrete-time algebraic Riccati equation (DARE). Dissipation theory and quadratic difference forms from the behavioral approach play a central role in this paper. Along the
Kojima, Chiaki +3 more
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TO THE PROBLEM OF THE NONLINEAR SYSTEMS STABILIZABILITY
Міжнародний науково-технічний журнал "Проблеми керування та інформатики", 2011 It is demonstrated that stabilizability conditions of nonlinear systems in rigid synthesis methods are obtained from general stabilizability conditions under use of fixed matrixes coefficient structure of quadratic forms.
S.M. Onishchenko
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On the capture and representation of fonts [PDF]
, 1991 This thesis was submitted for the degree of Doctor of Philosophy and awarded by Brunel University.The commercial need to capture, process and represent the shape and form of an outline has lead to the development of a number of spline routines. These use
Hussain, Fiaz
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The Role of Pre-Commitments and Engle Curves in Thailand’s Aggregate Energy Demand System
Energies, 2022 In the present paper, an investigation into Thailand’s energy demand is performed to determine if: (1) a linear or nonlinear Engel curve better explains the relationship between income and energy consumption, and (2) systems with pre-commitments better ...
Kannika Duangnate, James W. Mjelde
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Solubility of Systems of Quadratic Forms [PDF]
Bulletin of the London Mathematical Society, 1997 We derive an upper bound for the least number of variables needed to guarantee that a system of t quadratic forms (t>=2) over a field F has a nontrivial zero. In particular, if F is a local field, then 2t^2+3 variables insure the existence of a nontrivial zero (2t^2+1 if t is even), while if F=Q_p with p>=11, then 2t^2-2t+5 variables suffice (2t ...
openaire +3 more sources
New aspects of two Hessian-Riemannian metrics in plane [PDF]
Surveys in Mathematics and its Applications, 2020 Due to the importance of Hessian structures we express some algebraic and geo\-me\-tric features of two such semi-Riemannian metrics in dimension two. For this purpose we use the separable coordinate systems of the Euclidean plane. Several properties are
Mircea Crâșmăreanu
doaj
Entropy, 2021 A product form design and evaluation model are proposed. In this method, the forms can be evaluated by three sub-evaluation models which can help designers to grasp consumers’ preferences.
Peng Lu, Shih-Wen Hsiao, Fan Wu
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Modeling Ivory Coast COVID-19 cases: Identification of a high-performance model for utilization
Results in Physics, 2021 This study modelled the reported daily cumulative confirmed, discharged and death Coronavirus disease 2019 (COVID-19) cases using six econometric models in simple, quadratic, cubic and quartic forms and an autoregressive integrated moving average (ARIMA)
Ugochinyere Ihuoma Nwosu +1 more
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