Fractional stochastic differential equations : applications to Covid-19 modeling / Abdon Atangana, Seda Igret Araz. Atangana, Abdon Araz, Seda Igret jt, auth. 515.35 ATF Includes bibliographical references and index Singapore : Springer, 2022. 2022. 2022 Text xv, 540 p. : eng Industrial and applied mathematics