Results 11 to 20 of about 769,228 (261)

Final Value Problems for Parabolic Differential Equations and Their Well-Posedness [PDF]

open access: yesAxioms, 2018
This article concerns the basic understanding of parabolic final value problems, and a large class of such problems is proved to be well posed. The clarification is obtained via explicit Hilbert spaces that characterise the possible data, giving ...
Ann-Eva Christensen, Jon Johnsen
doaj   +5 more sources

Boundary control problem for a hyperbolic equation loaded along one of its characteristics [PDF]

open access: yesҚарағанды университетінің хабаршысы. Математика сериясы, 2022
This paper investigates the unique solvability of the boundary control problem for a one-dimensional wave equation loaded along one of its characteristic curves in terms of a regular solution. The solution method is based on an analogue of the d’
A.Kh. Attaev
doaj   +3 more sources

A modified quasi-boundary value method for a class of abstract parabolic ill-posed problems

open access: yesBoundary Value Problems, 2006
We study a final value problem for first-order abstract differential equation with positive self-adjoint unbounded operator coefficient. This problem is ill-posed.
S. Djezzar, M. Denche
doaj   +4 more sources

Research of the Solutions Proximity of Linearized and Nonlinear Problems of the Biogeochemical Process Dynamics in Coastal Systems

open access: yesMathematics, 2023
The article considers a non-stationary three-dimensional spatial mathematical model of biological kinetics and geochemical processes with nonlinear coefficients and source functions.
Alexander Sukhinov   +3 more
doaj   +1 more source

Sufficient Conditions for the Existence and Uniqueness of the Solution of the Dynamics of Biogeochemical Cycles in Coastal Systems Problem

open access: yesMathematics, 2022
The article considers a three-dimensional mathematical model of population dynamics based on a system of non-stationary parabolic advection-diffusion-reaction equations with lower derivatives describing the advective motion of the aquatic environment and
Alexander Sukhinov   +3 more
doaj   +1 more source

Klasifikasi Topik Tugas Akhir Mahasiswa menggunakan Algoritma Particle Swarm Optimization dan K-Nearest Neighbor

open access: yesIlkom Jurnal Ilmiah, 2020
Problems the Topic of the final project is a form of scientific writing that contains the results of observations from a study of the problems that occur with the use of methods related to the particular field of science.
Sumarni Sumarni, Suhardi Rustam
doaj   +1 more source

Quality Aspects in the Compounding of Plastic Recyclate

open access: yesRecycling, 2023
Compounding is the final processing step for quality adjustment and control before recycled thermoplastic polymer material can be introduced into production processes.
Maximilian Auer   +6 more
doaj   +1 more source

Final Value Problem for Parabolic Equation with Fractional Laplacian and Kirchhoff’s Term

open access: yesJournal of Function Spaces, 2021
In this paper, we study a diffusion equation of the Kirchhoff type with a conformable fractional derivative. The global existence and uniqueness of mild solutions are established. Some regularity results for the mild solution are also derived. The main tools for analysis in this paper are the Banach fixed point theory and Sobolev embeddings.
Nguyen Hoang Luc   +3 more
openaire   +3 more sources

The Definition and Numerical Method of Final Value Problem and Arbitrary Value Problem

open access: yesComputer Systems Science and Engineering, 2018
Scheduled for publication in the September 2018 edition of CSSE(Computer Systems Science and Engineering) journal, Volume 33 Number ...
Shixiong Wang   +3 more
openaire   +2 more sources

Method of calculating the preferred approach in the evaluation of intellectual property [PDF]

open access: yesE3S Web of Conferences, 2019
The paper presents a method for calculating the preferred approach when evaluating intellectual property, taking into account local confidence factors, which makes it possible to obtain the final value of intellectual property with high probability and ...
Dyakonova Sofya   +3 more
doaj   +1 more source

Home - About - Disclaimer - Privacy