Contemporary Mathematics, Volume 3 Issue 2 (2022), 81-269 < Previous vol / issue Next vol/issue >

This issue is in progress but contains articles that are final and fully citable.

Structural Identifiability of Feedback Systems with Nonlinear Adulterating

by Karabutov Nikolay

Abstract: We consider the structural identifiability estimation problem of Nonlinear Feedback Systems (NFS) with nonlinear adulterating. The problem of NFS Structural Identifiability (NFSI) has not been studied...

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On Certain Geometric Operators Between Sobolev Spaces of Sections of Tensor Bundles on Compact Manifolds Equipped with Rough Metrics

by Holst Michael,Behzadan Ali

Abstract: The study of Einstein constraint equations in general relativity naturally leads to considering Riemannian manifolds equipped with nonsmooth metrics. There are several important differential operators...

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Solvability of Higher Order Iterative System with Non-Homogeneous Integral Boundary Conditions

by Namburi Sreedhar,Namana Kanakayya, Rajendra Prasad Kapula

Abstract: The aim of this paper is to establish the existence of positive solutions by determining the eigenvalue intervals of the parameters μ1, μ2, ..., μm for the iterative system of nonlinear differentia...

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Enriched Pro-Categories and Shapes

by Uglešić Nikica

Abstract: Given a category C and a directed partially ordered set J, a certain category proJ-C on inverse systems in C is constructed such that the ordinary pro-category pro-C is the most special case of a sing...

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C¹(Rᴺ) Versus W¹,ᵖ(Rᴺ) Local Minimizers

by Motreanu Dumitru

Abstract: This paper deals with the energy functional associated with a quasilinear elliptic equation in RN which is driven by the p-Laplacian operator. It is shown for such functional that any C1(RN) local mi...

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Maslov Index and Quasi-Symplectic Isomorphisms

by Wu Jin

Abstract: Maslov index is defined as the number of the intersection of a loop of Lagrangian subspaces with a 1-codimensional cycle in the Lagrangian Grassmannian. It is well-known that linear symplectomorphisms...

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Unsteady Generalized Couette Flow in a Horizontal Channel with Sudden Application or Removal of a Porous Material

by Oni Michael O., Yusuf Aminat B.,Yusuf Taiwo S. ,Adebayo Olaife H. ,Azeez Luqman A.

Abstract: The role of sudden application or removal of a porous material on generalized Couette flow in a horizontal channel is carried out. The governing momentum equation is obtained and solved with the neces...

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Galerkin Method and Its Residual Correction with Modified Legendre Polynomials

by Md. Nurunnabi Sohel, Md. Shafiqul Islam, Md. Shariful Islam, Md. Kamrujjaman

Abstract: Accuracy and error analysis is one of the significant factors in computational science. This study employs the Galerkin method to solve second order linear or nonlinear Boundary Value Problems (BVPs) ...

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Extending the Traub Theory for Solving Nonlinear Equations

by Regmi Samundra, Ioannis K. Argyros,George Santhosh,Argyros Christopher

Abstract: In this paper, we extend the Traub theory for solving nonlinear equation. The extension is based on recurrent functions, the center Lipschitz condition and the notion of the restricted convergence dom...

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Minimal Diamond-Saturated Families

by Ivan Maria-Romina

Abstract: For a given fixed poset P we say that a family of subsets of [n] is P-saturated if it does not contain an induced copy of P, but whenever we add to it a new set, an induced copy of P is form...

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