BEALE–KATO–MAJDA REGULARITY CRITERION OF SMOOTH SOLUTIONS FOR THE HALL-MHD EQUATIONS WITH ZERO VISCOSITY Article Gala S., Galakhov E., Ragusa M.A., Salieva O. Bulletin of the Brazilian Mathematical Society. Springer. 2021.
NEW GENERAL VARIANTS OF CHEBYSHEV TYPE INEQUALITIES VIA GENERALIZED FRACTIONAL INTEGRAL OPERATORS Article Akdemir A.O., Butt S.I., Nadeem M., Ragusa M.A. Mathematics. MDPI AG. Vol. 9. 2021. P. 1-11
ON THE HYBRID FRACTIONAL DIFFERENTIAL EQUATIONS WITH FRACTIONAL PROPORTIONAL DERIVATIVES OF A FUNCTION WITH RESPECT TO A CERTAIN FUNCTION Article Abbas M.I., Ragusa M.A. Symmetry. MDPI AG. Vol. 13. 2021. P. 1-16
FRACTIONAL INTEGRAL INEQUALITIES VIA ATANGANA-BALEANU OPERATORS FOR CONVEX AND CONCAVE FUNCTIONS Article Akdemir A.O., Karaoǧlan A., Ragusa M.A., Set E. Journal of Function Spaces. Hindawi Limited. Vol. 2021. 2021.
REGULARITY CRITERIA VIA ONE DIRECTIONAL DERIVATIVE OF THE VELOCITY IN ANISOTROPIC LEBESGUE SPACES TO THE 3D NAVIER-STOKES EQUATIONS Article Ragusa M.A., Wu F. Journal of Mathematical Analysis and Applications. Academic Press Inc.. Vol. 502. 2021.
AN EXISTENCE RESULT FOR A CLASS OF P(X)-ANISOTROPIC TYPE EQUATIONS Article Ourraoui A., Ragusa M.A. SYMMETRY-BASEL. MDPI. Vol. 13. 2021.
REGULARITY OF SOLUTIONS OF ELLIPTIC EQUATIONS IN DIVERGENCE FORM IN MODIFIED LOCAL GENERALIZED MORREY SPACES Article Guliyev V.S., Omarova M.N., Ragusa M.A., Scapellato A. Analysis and Mathematical Physics. Springer Basel. Vol. 11. 2021.
OPTICAL SOLITONS AND OTHER SOLUTIONS TO KAUP–NEWELL EQUATION WITH JACOBI ELLIPTIC FUNCTION EXPANSION METHOD Article Ahmed H.M., Rabie W.B., Ragusa M.A. Analysis and Mathematical Physics. Springer Basel. Vol. 11. 2021.
A DOUBLE-LOGARITHMICALLY IMPROVED REGULARITY CRITERION OF WEAK SOLUTIONS FOR THE 3D MHD EQUATIONS Article Omrane I.B., Gala S., Ragusa M.A. Zeitschrift fur Angewandte Mathematik und Physik. Birkhauser Verlag AG. Vol. 72. 2021.
GLOBAL REGULARITY AND STABILITY OF SOLUTIONS TO THE 3D DOUBLE-DIFFUSIVE CONVECTION SYSTEM WITH NAVIER BOUNDARY CONDITIONS Article Ragusa M.A., Wu F. Advances in Differential Equations. Khayyam Publishing, Inc.. Vol. 26. 2021. P. 281-304
EXISTENCE OF RADIAL SOLUTIONS FOR A P(X) -LAPLACIAN DIRICHLET PROBLEM Article Ragusa M.A., Razani A., Safari F. Advances in Difference Equations. Springer International Publishing. Vol. 2021. 2021.
AN EXISTENCE RESULT FOR A CLASS OF P(X)−ANISOTROPIC TYPE EQUATIONS Article Ourraoui A., Ragusa M.A. Symmetry. MDPI AG. Vol. 13. 2021.
REGULARITY CRITERIA FOR THE 3D MAGNETO-HYDRODYNAMICS EQUATIONS IN ANISOTROPIC LORENTZ SPACES Article Ragusa M.A., Wu F. SYMMETRY-BASEL. MDPI. Vol. 13. 2021.
NONLINEAR NEUTRAL DELAY DIFFERENTIAL EQUATIONS OF FOURTH-ORDER: OSCILLATION OF SOLUTIONS Article Agarwal R.P., Bazighifan O., Ragusa M.A. Entropy. Vol. 23. 2021. P. 1-10
MODELS FOR COVID‐19 DAILY CONFIRMED CASES IN DIFFERENT COUNTRIES Article Ahmed H.M., Elbarkouky R.A., Omar O.A.M., Ragusa M.A. Mathematics. MDPI AG. Vol. 9. 2021.