Journal of Computational and Applied Mathematics
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#1M.A. Davydova (MSU: Moscow State University)
Last. S.A. Zakharova (MSU: Moscow State University)
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Abstract null null A new approach to the study of multidimensional singularly perturbed problems of nonlinear heat conduction is proposed, based on the further development and use of asymptotic analysis methods. We study the question of the existence of classical Lyapunov stable stationary solutions with boundary and internal transition layers (stationary thermal structures) of the nonlinear heat transfer equation. We suggest the efficient algorithm for constructing an asymptotic approximation t...
Abstract null null This paper describes the numerical analysis of the three-point bending test of glued-laminated timber arches with the fibers aligned with the longitudinal direction. The arches were cut with the vertical notch of 0.5 or 0.25 times the cross-sectional height in the middle of the arch span of null null null null 1700 null null null mm null null null null or null null null null 1830 null null null mm null null null . The 2D homogeneous orthotropic constitutive model of tensile an...
Abstract null null A class of high order extended boundary value methods (HEBVMs) suitable for the numerical approximation of stiff systems of ordinary differential equations (ODEs) is constructed. This class of BVMs is based on the second derivative class of linear multistep formulas (LMF) and it provides a set of very highly stable methods that can produce considerably accurate solutions to stiff systems whose Jacobians have some large eigenvalues lying close to the imaginary axis. The class o...
Abstract null null Several generalizations of Shannon entropy have been introduced in the literature. One of such a measure is the cumulative residual Tsallis entropy (CRTE) which can be viewed as an alternative dispersion measure. In this paper, we obtain some further results for such a measure, in relation with the cumulative residual Tsallis entropy and with the variance of random variables. Specifically, we present new equivalent expressions, bounds, normalized CRTE, connection to the differ...
#1Christian Engström (LNU: Linnaeus University)H-Index: 13
#2Stefano Giani (Durham University)H-Index: 14
Last. Luka Grubišić (University of Zagreb)H-Index: 8
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Abstract null null Discontinuous Galerkin composite finite element methods (DGCFEM) are designed to tackle approximation problems on complicated domains. Partial differential equations posed on complicated domain are common when there are mesoscopic or local phenomena which need to be modelled at the same time as macroscopic phenomena. In this paper, an optical lattice will be used to illustrate the performance of the approximation algorithm for the ground state computation of a Gross–Pitaevskii...
#1Dries Cornilly (Katholieke Universiteit Leuven)H-Index: 4
#2Giovanni Puccetti (University of Milan)H-Index: 22
Last. Steven Vanduffel (Vrije Universiteit Brussel)H-Index: 22
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Abstract null null Many classical synchronization problems such as the assembly line crew scheduling problem (ALCS), some data association problems or multisensor tracking problems can be formulated as finding intra-column rearrangements for a single matrix representing costs, distances, similarities or time requirements. In this paper, we consider an extension of these problems to the case of multiple matrices, reflecting various possible instances (scenarios). To approximate optimal rearrangem...
#1Noreen Azhar (Sardar Bahadur Khan Women's University)
#2Saleem Iqbal (University of Balochistan)H-Index: 5
Abstract null null This paper deals with the application of fuzzy Mellin transform for fuzzy valued functions. It is an attempt to investigate fuzzy Mellin transform in fractional sense and is called fuzzy fractional Mellin transform. Some techniques are proposed for the solution of fuzzy fractional order differential equations by using left-sided Riemann–Liouville fractional derivative. Moreover, some illustrative examples are solved to show the capability and effectiveness of fuzzy Mellin tran...
Abstract null null This paper presents the rates of uniform strong consistency of wavelet estimation for nonparametric function in sup-norm loss by introducing an empirical process approach. A compact support assumption on the explanatory variable is commonly used in nonparametric regression analysis. In the article, we consider the wavelet estimation analysis without any assumption on the compacity of the support of the explanatory variable. The optimal uniform convergence rates of the wavelet ...
Abstract null null A new heuristic parameter choice rule is proposed, which is an important process in solving the linear ill-posed integral equation. Based on multiscale Galerkin projection, we establish the error upper bound between the approximate solution obtained by this rule and the exact solution. Under certain conditions, we prove that the approximate solution obtained by this rule can reach the optimal convergence rate. Since the computational cost will be very large when the dimension ...
#1Gaurav Mittal (IITR: Indian Institute of Technology Roorkee)H-Index: 2
#2Ankik Kumar Giri (IITR: Indian Institute of Technology Roorkee)H-Index: 6
Abstract null null In this paper we formulate the convergence rates of the iteratively regularized Gauss–Newton method by defining the iterates via convex optimization problems in a Banach space setting. We employ the concept of conditional stability to deduce the convergence rates in place of the well known concept of variational inequalities. To validate our abstract theory, we also discuss an ill-posed inverse problem that satisfies our assumptions. We also compare our results with the existi...
Top fields of study
Mathematical optimization
Mathematical analysis
Nonlinear system
Applied mathematics
Numerical analysis
Convergence (routing)