Boundary value problem for mixed-compound equation with fractional derivative, functional delay and advance

We study the Tricomi problem for the functional-differential mixed-compound equation $LQu(x,y)=0$ in the class of twice continuously differentiable solutions. Here $L$ is a differential-difference operator of mixed parabolic-elliptic type with Riemann–Liouville fractional derivative and linear shift...

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Main Authors: Alexandr Nikolaevich Zarubin, Elena Viktorovna Chaplygina
Format: Article
Language:English
Published: Samara State Technical University 2019-12-01
Series:Vestnik Samarskogo Gosudarstvennogo Tehničeskogo Universiteta. Seriâ: Fiziko-Matematičeskie Nauki
Subjects:
Online Access:https://journals.eco-vector.com/1991-8615/article/viewFile/34678/23027
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author Alexandr Nikolaevich Zarubin
Elena Viktorovna Chaplygina
author_facet Alexandr Nikolaevich Zarubin
Elena Viktorovna Chaplygina
author_sort Alexandr Nikolaevich Zarubin
collection DOAJ
description We study the Tricomi problem for the functional-differential mixed-compound equation $LQu(x,y)=0$ in the class of twice continuously differentiable solutions. Here $L$ is a differential-difference operator of mixed parabolic-elliptic type with Riemann–Liouville fractional derivative and linear shift by $y$. The $Q$ operator includes multiple functional delays and advances $a_1(x)$ and $a_2(x)$ by $x$. The functional shifts $a_1(x)$ and $a_2(x)$ are the orientation preserving mutually inverse diffeomorphisms. The integration domain is $D=D^+\cup D^-\cup I$. The “parabolicity” domain $D^+$ is the set of $(x,y)$ such that $x_0
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spelling doaj.art-cd04e4746e304cc6b3dff004757413bb2022-12-22T01:47:17ZengSamara State Technical UniversityVestnik Samarskogo Gosudarstvennogo Tehničeskogo Universiteta. Seriâ: Fiziko-Matematičeskie Nauki1991-86152310-70812019-12-01231203610.14498/vsgtu164831191Boundary value problem for mixed-compound equation with fractional derivative, functional delay and advanceAlexandr Nikolaevich Zarubin0Elena Viktorovna Chaplygina1Orel State University named after I. S. TurgenevOrel State University named after I. S. TurgenevWe study the Tricomi problem for the functional-differential mixed-compound equation $LQu(x,y)=0$ in the class of twice continuously differentiable solutions. Here $L$ is a differential-difference operator of mixed parabolic-elliptic type with Riemann–Liouville fractional derivative and linear shift by $y$. The $Q$ operator includes multiple functional delays and advances $a_1(x)$ and $a_2(x)$ by $x$. The functional shifts $a_1(x)$ and $a_2(x)$ are the orientation preserving mutually inverse diffeomorphisms. The integration domain is $D=D^+\cup D^-\cup I$. The “parabolicity” domain $D^+$ is the set of $(x,y)$ such that $x_0https://journals.eco-vector.com/1991-8615/article/viewFile/34678/23027mixed-compound equationfractional derivativedifference operatortricomi problem
spellingShingle Alexandr Nikolaevich Zarubin
Elena Viktorovna Chaplygina
Boundary value problem for mixed-compound equation with fractional derivative, functional delay and advance
Vestnik Samarskogo Gosudarstvennogo Tehničeskogo Universiteta. Seriâ: Fiziko-Matematičeskie Nauki
mixed-compound equation
fractional derivative
difference operator
tricomi problem
title Boundary value problem for mixed-compound equation with fractional derivative, functional delay and advance
title_full Boundary value problem for mixed-compound equation with fractional derivative, functional delay and advance
title_fullStr Boundary value problem for mixed-compound equation with fractional derivative, functional delay and advance
title_full_unstemmed Boundary value problem for mixed-compound equation with fractional derivative, functional delay and advance
title_short Boundary value problem for mixed-compound equation with fractional derivative, functional delay and advance
title_sort boundary value problem for mixed compound equation with fractional derivative functional delay and advance
topic mixed-compound equation
fractional derivative
difference operator
tricomi problem
url https://journals.eco-vector.com/1991-8615/article/viewFile/34678/23027
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