In this paper, approaches to the numerical recovering of the initial condition in the inverse problem for a nonlinear singularly perturbed reaction–diffusion–advection equation are considered.
Dmitry Lukyanenko +5 more
doaj +1 more source
Positive Solutions of an Initial Value Problem for Nonlinear Fractional Differential Equations [PDF]
We investigate the existence and multiplicity of positive solutions for the nonlinear fractional differential equation initial value problem u(0) = 0, 0 < t < 1, where is the standard Riemann‐Liouville differentiation and f : [0,1] × [0, ∞) → [0, ∞) is continuous.
Dumitru Băleanu +2 more
openaire +4 more sources
A Novel Adaptive Fractional Differential Active Contour Image Segmentation Method
When the image is affected by strong noise and uneven intensity, the traditional active contour models often cannot obtain accurate results. In this paper, a novel adaptive fractional differential active contour image segmentation method is proposed to ...
Yanzhu Zhang, Lijun Yang, Yan Li
doaj +1 more source
A characteristic initial boundary value problem for a symmetric positive system [PDF]
Let \(\Omega\) be a bounded open subset of \(\mathbb{R}^n\) with smooth boundary \(\partial\Omega\). In \(\Omega\) the authors consider a first-order symmetric system \[ L[u]= \sum^n_{j= 1} A_j(x) \partial_j u+ B(x) u, \] \(A_j(x)\), \(B(x)\in C^\infty(\overline\Omega)\), \(A^*_j(x)= A_j(x)\) with \(u= (u_1,\dots, u_N)\) and \(\partial_j= {\partial ...
NISHITANI, Tatsuo, TAKAYAMA, Masahiro
openaire +3 more sources
Analysing an Interactive Problem-Solving Task Through the Lens of Double Stimulation
Problem-solving activities have been studied from a diversity of epistemological perspectives. In problem-solving activities, the initial tensions of a problematic situation led to a cognitive dissonance between conflicting motives and instruments to ...
Margarida Romero, Sylvie Barma
doaj +1 more source
Adaptive Synthesized Control for Solving the Optimal Control Problem
The development of artificial intelligence systems assumes that a machine can independently generate an algorithm of actions or a control system to solve the tasks.
Askhat Diveev, Elizaveta Shmalko
doaj +1 more source
Positive Solutions of Singular Initial-Boundary Value Problems to Second-Order Functional Differential Equations [PDF]
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Jin Fengfei, Yan Baoqiang
openaire +4 more sources
Perceived risk, Positive Youth–Parent Relationships, and Internalizing Problems in Adolescents: Initial Development of the Meaningful School Questionnaire [PDF]
This novel paper aimed to develop the Meaningful School Questionnaire (MSQ) to assess meaning in life in school context and examined whether meaningful school serves as a moderator on the links between the coronavirus risk, youth-parent relationships, and internalizing problems.
Gökmen Arslan, Murat Yıldırım
openaire +4 more sources
On the zero-dispersion limit of the benjamin-ono cauchy problem for positive initial data [PDF]
54 pages, 11 ...
Miller, Peter D., Xu, Zhengjie
openaire +4 more sources
In this paper, an error-tracking iterative learning control scheme is proposed for a class of nonlinearly parametric time-delay systems with initial state errors. The iterative learning controller is developed by Lyapunov approach.
Qiuzhen Yan +3 more
doaj +1 more source

