Toka Diagana, Ph.D. Department Chair, Department of Mathematical Sciences Professor Contact 301 Sparkman DriveShelby CenterRoom 258BHuntsville, AL 35899 Campus Map 256.824.6498toka.diagana@uah.edu Biography Curriculum Vitae Education Ph. D., Mathematics, Claude Bernard University - Lyon 1, France, 1999 Affiliations American Mathematical Society Centennial Fellowship Selection Committee (2020-2022) Nonautonomous Dynamical Systems (Editor-in-chief) Fractional Differential Calculus (Associate Editor) International Journal of Differential Equations (Associate Editor) Research in Mathematics (Associate Editor) Afrika Matematika (Associate Editor) Expertise Differential equations in abstract spaces Stochastic differential equations Integrodifferential equations Operator theory Functional analysis Difference equations & Mathematical biology p-adic analysis & Spectral theory Recent Publications The long-term behavior of the p-adic Sigmoid Beverton-Holt dynamical systems in the projective line P^1(Q_p). Journal of Mathematical Analysis and Applications (2023). https://www.sciencedirect.com/science/article/pii/S0022247X23006418?via%3Dihub Well-posedness and stability results for some nonautonomous abstract linear hyperbolic equations with memory. Semigroup Forum 105 (2022), pp. 351--373. (with W. Khulaifi and A. Guesmia) Existence of asymptotically almost periodic solutions for some second-order hyperbolic integrodifferential equations. Semigroup Forum (2020). https://doi.org/10.1007/s00233-020-10140-3. (with J. H. Hassan and S. A. Messaoudi). Exponential stability for solutions of continuous and discrete abstract Cauchy problems in Banach spaces. Electron. J. Differential Equations (2019), No. 78, 16 pp. (with C. Buse, L. T. Nguyen, and D. O'Regan). Almost periodic solutions for some semilinear singular difference equations. Journal of Difference Equations and Applications 24 (2018), no. 1, p. 138-147. (with D. Pennequin). Semilinear Evolution Equations and Their Applications. Springer, New York, 2018. Some new identities and congruences for Fubini numbers. Journal of Number Theory 173 (2017), p. 547-569. (with H. Maiga) Non-Archimedean Operator Theory. Springer, New York, 2016. (with F. Ramaroson) Existence results for some higher-order evolution equations with time-dependent unbounded operator coefficients. Mathematica Slovaca 65 (2015), no.1, p. 121-140. Almost automorphic solutions to a Beverton-Holt dynamic equation with survival rate. Applied Mathematics Letters 36 (2014), p. 19-24.