Abstract
We introduce the most general mixed fractional derivatives and integrals from three points of views: probability, the theory of operator semigroups, and the theory of generalized functions. The solutions to the resulting mixed fractional PDEs turned out to be representable in terms of of completely monotone functions in a certain class generalizing the usual Mittag-Leffler functions.
Similar content being viewed by others
References
O. P. Agrawal, “Generalized variational problems and Euler-Lagrange equations,” Comput. Math. Appl. 59 (5), 1852–1864(2010).
M. M. Dzrbasjan and A. B. Nersesian, “Fractional derivatives and the Cauchy problem for differential equations of fractional order,” Izv. Akad. Nauk Armjan. SSR Sen Mat. 3(1), 3–29(1968).
A. B. Malinowska, T. Odzijewicz, and D. F. M. Torres, Advanced Methods in the Fractional Calculus of Variations (Springer, Cham, 2015).
Y. Xu, Zh. He, and O. P. Agrawal, “Numerical and analytical solutions of new generalized fractional diffusion equation,” Comput. Math. Appl. 66 (10), 2019–2029 (2013).
V. Kiryakova, Generalized Fractional Calculus and Applications, in Pitman Res. Notes Math. Ser. (Longman Sci. & Tech., Harlow; copublished in the United States: Wiley, New York, 1994), Vol. 301.
A. N. Kochubei and Y. Kondratiev, “Fractional kinetic hierarchies and intermittency,” Kjnet. Relat. Models 10(3), 725–740(2017).
V. N. Kolokoltsov, “On fully mixed and multidimensional extensions of the Caputo and Riemann-Liouville derivatives, related Markov processes and fractional differential equations,” Fract. Calc. Appl. Anal. 18 (4), 1039–1073(2015).
V. N. Kolokoltsov, Nonlinear Markov Processes and Kinetic Equations, in Cambridge Tracts in Math. (Cambridge Univ. Press, Cambridge, 2010), Vol. 182.
V. N. Kolokoltsov, Markov Processes, Semigroups and Generators, in De Gruyter Stud. Math. (Walter de Gruyter, 2011), Vol. 38.
M. M. Meerschaert and Sikorskii, “Stochastic Models for Fractional Calculus,” in De Gruyter Stud. Math. (Walter de Gruyter, 2012), Vol. 43.
I. I. Gikhman and A. V. Skorokhod, Theory of Stochastic Processes (Nauka, Moscow, 1973), Vol. 2 [in Russian].
V Kolokoltsov, Chronological Operator-Valued Feynman-Kac Formulae for Generalized Fractional Evolutions, arXiv: 1705.08157(2017).
R. Garra, A. Giusti, F. Mainardi, and G. Pagnini, “Fractional relaxation with time-varying coefficient,” Fract. Calc. Appl. Anal. 17 (2), 424–439 (2014).
D. Baleanu, K. Diethelm, E. Scalas, and J. J. Trujillo, Fractional Calculus. Models and Numerical Methods (World Sci. Publ., Hackensack, NJ, 2017).
A. V. Pskhu, Partial Differential Equations of Fractional Order (Nauka, Moscow, 2005) [in Russian].
V. E. Tarasov, Fractional Dynamics. Applications of Fractional Calculus to Dynamics of Particles, Fields and Media (Springer, Heidelberg, 2010).
V. V. Uchaikin, Fractional Derivatives for Physicists and Engineers, Vol. I: Background and Theory (Springer, Heidelberg, 2012).
B. J. West, Fractional Calculus View of Complexity. Tomorrow’s Science (CRC Press, Boca Raton, FL, 2016).
V. N. Kolokol’tsov, “Generalized continuous-time random walks, subordination by hitting times, and fractional dynamics,” Teor. Veroyatn. Primenen. 53 (4), 684–703 (2008) [Theory Probab. Appl. 53 (4), 594-609 (2008)].
T. Atanackovic, D. Dolicanin, S. Pilipovic, and B. Stankovic, “Cauchy problems for some classes of linear fractional differential equations,” Fract. Calc. Appl. Anal. 17 (4), 1039–1059 (2014).
P. Gorka, H. Prado, and J. Trujillo, “The time fractional Schrödinger equation on Hilbert space,” Integral Equations Operator Theory 87(1), 1–14(2017).
R. Gorenflo, Y. Luchko, and M. Stojanovic, “Fundamental solution of a distributed order time-fractional diffusion-wave equation as probability density,” Fract. Calc. Appl. Anal. 16 (2), 297–316(2013).
N. N. Leonenko, M. M. Meerschaert, and A. Sikorskii, “Correlation structure of fractional Pearson diffusions,” Comput. Math. Appl. 66 (5), 737–745 (2013).
E. Orsingher and B. Toaldo, “Space-time fractional equations and the related stable processes at random time,” J. Theoret. Probab. 30, 1–26(2017).
M. E. Hernandez-Hernandez and V N. Kolokoltsov, “On the solution of two-sided fractional ordinary differential equations of Caputo type,” Fract. Calc. Appl. Anal. 19 (6), 1393–1413 (2016).
V. N. Kolokoltsov and M. A. Veretennikova, “Fractional Hamilton-Jacobi-Bellman equations for scaled limits of controlled continuous time random walks,” Commun. Appl. Ind. Math. 6(1), e–484 (2014).
Author information
Authors and Affiliations
Corresponding author
Additional information
Russian Text © The Author(s), 2019, published in Matematicheskie Zametki, 2019, Vol. 106, No. 5, pp. 687-707.
Rights and permissions
About this article
Cite this article
Kolokol’tsov, V.N. Mixed Fractional Differential Equations and Generalized Operator-Valued Mittag-Leffler Functions. Math Notes 106, 740–756 (2019). https://doi.org/10.1134/S0001434619110087
Received:
Revised:
Accepted:
Published:
Issue Date:
DOI: https://doi.org/10.1134/S0001434619110087