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Now showing items 41-50 of 58
On the properties of the set of trajectories of the nonlinear control system with quadratic integral constraint on the control functions
(Krasovskii Institute of Mathematics and Mechanics of the Ural Branch of Russian Academy of Sciences, 30.06.2023)
In this paper the control system described by a nonlinear differential equation is studied. It is assumed that the control functions have a quadratic integral constraint, more precisely, the admissible control functions ...
On the robustness of continuous trajectories of the control system described by an integral equation
(KOREAN SOC MATHEMATICAL EDUCATION, 30.05.2023)
In this paper the control system described by Urysohn type integral equation is studied. It is assumed that control functions are integrally constrained. The trajectory of the system is defined as multivariable continuous ...
Approximation of the image of the $L_p$ ball under Hilbert-Schmidt integral operator
(De Gruyter, 14.04.2023)
In this paper an approximation of the image of the closed ball of the space $L_p$ $(p>1)$ centered at the origin with radius $r$ under Hilbert-Schmidt integral operator $F( \cdot ):L_p\rightarrow L_q$, $\frac{1}{p}+\frac{1}{q}=1,$ ...
On the continuity properties of the Lp balls
(Walter de Gruyter GmbH, 11.04.2023)
In this paper the right upper semicontinuity at p = 1 and continuity at p = ∞ of the set-valued map
p → B_{\Omega,X,p}(r), p ∈ [1,∞], are studied where B_{\Omega,,X,p}(r) is the closed ball of the space L_p(\Omega, Σ, ...
Modeling and simulation of the influence of quantum dots density on solar cell properties
(Springer, 12 Şubat 2)
Based on the finite element method using the FEniCS computing platform and python programming, we solve the Schrödinger equation within the effective mass approximation. Its solution gives us the necessary energy for an ...
The nonlinear optical properties of "12-6" tuned GaAs/GaAlAs double quantum well under the external fields
(Springer, 22 Şubat 2)
We have studied the linear and nonlinear optical properties of 12-6GaAs/Ga1-xAlxAs double quantum well heterostructure under different external fields’ effects such as electric, magnetic and intense laser fields. We also ...
Effects of external fields on the nonlinear optical rectification and second harmonic generation of GaAs/GaAlAs zigzag quantum well
(ELSEVIER, 15 Şubat 2)
For the first time, the impact of externally applied static electric and magnetic field on the nonlinear op- tical rectification (NOR) and second harmonic generation (SHG) coefficients of GaAs/GaAlAs zigzag quan- tum well ...
Effects of external electric and magnetic field on the nonlinear optical rectification, second, and third-harmonic generations in GaAs/AlGaAs asymmetric triple quantum well
(Springer, 31 Temmuz )
In this paper, we theoretically investigate the nonlinear optical rectification (NOR), second-harmonic generation (SHG), and third-harmonic generation (THG) coefficients of an AlGaAs/GaAs asymmetric triple quantum well ...
On the qualitative study of a discrete fractional order prey–predator model with the effects of harvesting on predator population
(25 August )
This research investigates the discrete prey–predator model by including harvesting on the predator population, in the sense of Caputo fractional derivative. We define the topological categories of the model fixed points. ...
A novel series of tetrahydrothieno[2,3-c]pyridin-2-yl derivatives: fluorescence spectroscopy and BSA binding, ADMET properties, molecular docking, and DFT studies
(RSC Publishing, 2023)
In this study, a series of substituted tetrahydrothieno[2,3-c]pyridin-2-yl (THTP) derivatives, i.e., C1–C3 and N1–N3, was synthesized in one step using 2-amino-5,5,7,7-tetramethyl-4,5,6,7-tetrahydrothieno[2,3-c]pyridine- ...