Results 61 to 70 of about 167,279,134 (172)
Inference on a Stochastic Bass Model for New Product Adoption
Applied Stochastic Models in Business and Industry, Volume 42, Issue 4, July/August 2026.ABSTRACT This paper investigates stochastic versions of the classical Bass diffusion model, with a focus on the development and comparison of parameter estimation procedures. Two stochastic processes that generalize the classical Bass model, which is commonly used to describe sales dynamics in emerging markets, are considered.
Giuseppina Albano +3 more
wiley +1 more source
Linear Operator Inequality and Null Controllability with Vanishing Energy for Unbounded Control Systems [PDF]
, 2013 We consider a linear boundary or point control system on a Hilbert space $H$ which is null controllable at some time $T_0 >0$. To every initial state $ y_0 \in H$ we associate the minimal ``energy'' needed to transfer $ y_0 $ to $ 0 $ in a time $ T \ge ...
Zabczyk, J. +7 more
core +1 more source
The Canadian Journal of Chemical Engineering, Volume 104, Issue 6, Page 3018-3037, June 2026.Abstract We develop a delay‐aware estimation and control framework for a non‐isothermal axial dispersion tubular reactor modelled as a coupled parabolic‐hyperbolic PDE system with recycle‐induced state delay. The infinite‐dimensional dynamics are preserved without spatial discretization by representing the delay as a transport PDE and adopting a late ...
Behrad Moadeli, Stevan Dubljevic
wiley +1 more source
Computation of General Inner-Outer and Spectral Factorizations [PDF]
, 2000 In this paper, we solve two problems in linear systems theory: the computation of the inner-outer and spectral factorizations of a continuous-time system considered in the most general setting.
Varga, A., Oara, C.
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Mathematical Methods in the Applied Sciences, Volume 49, Issue 9, Page 9814-9831, June 2026.ABSTRACT Nonlinear differential equations play a fundamental role in modeling complex physical phenomena across solid‐state physics, hydrodynamics, plasma physics, nonlinear optics, and biological systems. This study focuses on the Shynaray II‐A equation, a relatively less‐explored parametric nonlinear partial differential equation that describes ...
Aamir Farooq +4 more
wiley +1 more source
Gradient-Based Approach to Solve Optimal Periodic Output Feedback Control Problems [PDF]
, 1998 We discuss the numerical solution of the output feedback optimal periodic control problem by using a gradient search based optimization approach. Extension of this approach to the simultaneous stabilization of periodic multimodels is also considered. For
Varga, A., Pieters, S,
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Inheritance properties of the conjugate discrete-time algebraic Riccati equation
, 2022 In this paper we consider a class of conjugate discrete-time Riccati equations, arising originally from the linear quadratic regulation problem for discrete-time antilinear systems.
Fan, Hung-Yuan, Chiang, Chun-Yueh
core
On the Riccati Equations of the H∞ Control Problem for Discrete Time-Varying Systems
, 1995 In this paper we investigate the relationship between the different Riccati equations that appear in the H∞ control problem for linear discrete time-varying systems. Once we obtain this relation we can reformulate the conditions under which the H∞ output feedback problem is solvable.
Verhaegen, Michel +1 more
openaire +1 more source
Acceleration of Oscillational Iterative Process to Solve the Riccati Equation [PDF]
, 2020 P(論文)Several methods to solve the Riccati equation are proposed for the optimal regulator problem in modern control theory. In some cases, a solution of the Riccati equation is reached through iterative calculation.
カナマル, ヒデユキ +1 more
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Computation of H-infinity norm of linear discrete-time periodic systems [PDF]
, 2006 We propose an efficient an numerically reliable procedure for the computation of H-infinity norm of discrete-time linear periodic systems. The new procedure is general being applicable to both standard as well as descriptor periodic systems with time ...
Varga, Andreas
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