Existence of a Unique Weak Solution to a Nonlinear Non-Autonomous Time-Fractional Wave Equation (of Distributed-Order)
Abstract
:1. Introduction
- (if DO);
- ;
- , or with for all and some constant ;
- is uniformly elliptic with and ;
- ;
- with in , and .
2. Weak Formulation
- k is strongly positive definite since for all , for all and for all [29];
- since
- for any since
- ;
- ;
- for all ;
- .
3. Existence of a Solution
3.1. A Priori Estimates
3.2. Convergence
Funding
Conflicts of Interest
Abbreviations
a.a. | almost all |
a.e. | almost everywhere |
DO | distributed-order |
LHS | left-hand side |
RHS | right-hand side |
PDE | partial differential equation |
References
- Nakhushev, A.M. On continuous differential equations and their difference analogues. Sov. Math. Dokl. 1988, 37, 729–732. [Google Scholar]
- Caputo, M. Mean fractional-order-derivatives differential equations and filters. Ann. Dell’Università Ferrara 1995, 41, 73–84. [Google Scholar]
- Mainardi, F. Fractional relaxation-oscillation and fractional diffusion-wave phenomena. Chaos Solitons Fractals 1996, 7, 1461–1477. [Google Scholar] [CrossRef]
- Mainardi, F.; Paradisi, P. Fractional diffusive waves. J. Comput. Acoust. 2001, 9, 1417–1436. [Google Scholar] [CrossRef]
- Lorenzo, C.F.; Hartley, T.T. Variable Order and Distributed Order Fractional Operators. Nonlinear Dyn. 2002, 29, 57–98. [Google Scholar] [CrossRef]
- Atanacković, T.; Pilipović, S. On a class of equations arising in linear viscoelasticity theory. ZAMM J. Appl. Math. Mech. Z. FüR Angew. Math. Und Mech. 2005, 85, 748–754. [Google Scholar] [CrossRef]
- Atanackovic, T.M.; Pilipovic, S.; Zorica, D. Distributed-order fractional wave equation on a finite domain. Stress relaxation in a rod. Int. J. Eng. Sci. 2011, 49, 175–190. [Google Scholar] [CrossRef] [Green Version]
- Jiao, Z.; Chen, Y.; Podlubny, I. Distributed-Order Dynamic Systems. Stability, Simulation, Applications and Perspectives; Springer: New York, NY, USA, 2012. [Google Scholar]
- Patnaik, S.; Semperlotti, F. Application of variable- and distributed-order fractional operators to the dynamic analysis of nonlinear oscillators. Nonlinear Dyn. 2020. [Google Scholar] [CrossRef]
- Sakamoto, K.; Yamamoto, M. Initial value/boundary value problems for fractional diffusion-wave equations and applications to some inverse problems. J. Math. Anal. Appl. 2011, 382, 426–447. [Google Scholar] [CrossRef] [Green Version]
- Kian, Y.; Yamamoto, M. On existence and uniqueness of solutions for semilinear fractional wave equations. Fract. Calc. Appl. Anal. 2017, 20, 117–138. [Google Scholar] [CrossRef] [Green Version]
- Luchko, Y. Fractional wave equation and damped waves. J. Math. Phys. 2013, 54, 031505. [Google Scholar] [CrossRef] [Green Version]
- Gorenflo, R.; Luchko, Y.; Stojanović, M. Fundamental solution of a distributed order time-fractional diffusion-wave equation as probability density. Fract. Calc. Appl. Anal. 2013, 16, 297–316. [Google Scholar] [CrossRef]
- Atanackovic, T.M.; Pilipovic, S.; Zorica, D. Time distributed-order diffusion-wave equation. II. Applications of Laplace and Fourier transformations. Proc. R. Soc. Math. Phys. Eng. Sci. 2009, 465, 1893–1917. [Google Scholar] [CrossRef]
- Fedorov, V.E.; Streletskaya, E.M. Initial-value problems for linear distributed-order differential equations in Banach spaces. Electron. J. Differ. Equ. 2018, 2018, 17. [Google Scholar]
- Otárola, E.; Salgado, A.J. Regularity of solutions to space-time fractional wave equations: A PDE approach. Fract. Calc. Appl. Anal. 2019, 21, 1262–1293. [Google Scholar] [CrossRef] [Green Version]
- Sun, Z.z.; Wu, X. A fully discrete difference scheme for a diffusion-wave system. Appl. Numer. Math. 2006, 56, 193–209. [Google Scholar] [CrossRef]
- Ye, H.; Liu, F.; Anh, V. Compact difference scheme for distributed-order time-fractional diffusion-wave equation on bounded domains. J. Comput. Phys. 2015, 298, 652–660. [Google Scholar] [CrossRef] [Green Version]
- Gao, G.h.; Sun, Z.z. Two Alternating Direction Implicit Difference Schemes for Solving the Two-Dimensional Time Distributed-Order Wave Equations. J. Sci. Comput. 2016, 69, 506–531. [Google Scholar] [CrossRef]
- Abbaszadeh, M.; Dehghan, M. An improved meshless method for solving two-dimensional distributed order time-fractional diffusion-wave equation with error estimate. Numer. Algorithms 2017, 75, 173–211. [Google Scholar] [CrossRef]
- Hu, J.; Wang, J.; Nie, Y. Numerical algorithms for multidimensional time-fractional wave equation of distributed-order with a nonlinear source term. Adv. Differ. Equ. 2018, 2018, 352. [Google Scholar] [CrossRef]
- Sun, H.; Zhao, X.; Sun, Z.Z. The temporal second order difference schemes based on the interpolation approximation for the time multi-term fractional wave equation. J. Sci. Comput. 2019, 78, 467–498. [Google Scholar] [CrossRef]
- Lyu, P.; Liang, Y.; Wang, Z. A fast linearized finite difference method for the nonlinear multi-term time-fractional wave equation. Appl. Numer. Math. 2020, 151, 448–471. [Google Scholar] [CrossRef] [Green Version]
- Stynes, M. Too much regularity may force too much uniqueness. Fract. Calc. Appl. Anal. 2016, 19, 1554–1562. [Google Scholar] [CrossRef] [Green Version]
- Stynes, M.; O’Riordan, E.; Gracia, J.L. Error Analysis of a Finite Difference Method on Graded Meshes for a Time-Fractional Diffusion Equation. SIAM J. Numer. Anal. 2017, 55, 1057–1079. [Google Scholar] [CrossRef]
- Jin, B.; Lazarov, R.; Zhou, Z. Numerical methods for time-fractional evolution equations with nonsmooth data: A concise overview. Comput. Methods Appl. Mech. Eng. 2019, 346, 332–358. [Google Scholar] [CrossRef] [Green Version]
- Van Bockstal, K. Existence and uniqueness of a weak solution to a non-autonomous time-fractional diffusion equation (of distributed order). Appl. Math. Lett. 2020, 109, 106540. [Google Scholar] [CrossRef]
- Kubica, A.; Ryszewska, K. Fractional diffusion equation with distributed-order Caputo derivative. J. Integral Equations Appl. 2019, 31, 195–243. [Google Scholar] [CrossRef] [Green Version]
- Wong, J. Positive definite functions and Volterra integral equations. Bull. Am. Math. Soc. 1974, 80, 679–682. [Google Scholar] [CrossRef] [Green Version]
- Slodička, M.; Šišková, K. An inverse source problem in a semilinear time-fractional diffusion equation. Comput. Math. Appl. 2016, 72, 1655–1669. [Google Scholar] [CrossRef]
- Ciarlet, P.G. Linear and Nonlinear Functional Analysis with Applications; Applied Mathematics; Society for Industrial and Applied Mathematics: Philadelphia, PE, USA, 2013. [Google Scholar]
- Roubíček, T. Nonlinear Partial Differential Equations with Applications; Birkhäuser Verlag: Basel, Switzerland, 2005; Volume 153. [Google Scholar]
- Kubica, A.; Yamamoto, M. Initial-boundary value problems for fractional diffusion equations with time-dependent coefficients. Fract. Calc. Appl. Anal. 2018, 21, 276–311. [Google Scholar] [CrossRef] [Green Version]
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Van Bockstal, K. Existence of a Unique Weak Solution to a Nonlinear Non-Autonomous Time-Fractional Wave Equation (of Distributed-Order). Mathematics 2020, 8, 1283. https://doi.org/10.3390/math8081283
Van Bockstal K. Existence of a Unique Weak Solution to a Nonlinear Non-Autonomous Time-Fractional Wave Equation (of Distributed-Order). Mathematics. 2020; 8(8):1283. https://doi.org/10.3390/math8081283
Chicago/Turabian StyleVan Bockstal, Karel. 2020. "Existence of a Unique Weak Solution to a Nonlinear Non-Autonomous Time-Fractional Wave Equation (of Distributed-Order)" Mathematics 8, no. 8: 1283. https://doi.org/10.3390/math8081283