Prof. Ragusa Maria Alessandra
Dipartimento di Matematica e Informatica,
Viale Andrea Doria, 6, 95128 Catania  Italy
Tel: 0039095.7383060  Fax: 0039095.7337906 , email:
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Born in Catania on 18th june 1966, she got the degree in Mathematics on 12th july 1988 Magna cum Laude.
In 1992 she got a position as assistant professor of Mathematical Analysis at the University of Catania.
Since january 2000 she is associate professor of Mathematical Analysis at the Faculty of Mathematical, Physical and Natural Sciences of the University of Catania.
In june 2013 obtained the national scientific qualification of full professor of Mathematical Analysis.
 She has been a member of several boards for procedures to fill posts of associate professor and university researcher.
 She is project manager for "Erasmus InterIstitutionnel Accord", signed by the University of Catania and the Université de Limoges (France) for the years 201013, which provides for the teaching of a candidate for the doctorate courses and mutual period of study of a student for six months.
 She is project manager for' "Interinstitutional Agreement ERASMUS" between the University of Catania and Okan University in Istanbul (Turkey) for the years 201114, which includes the teaching of the candidate to PhD courses and mutual period of study of a student for six months.
 She is member of the University Center for the Protection and Management of Natural Environments and Agroecosystem, Interfaculty Centre of the University of Catania.

She, has been, and is referent professor for the tutoring activities conducted by:
Annamaria Barbagallo, research fellow (SSD MAT/05), at the Educational Structure in Aggregate Ecological Sciences of the University of Catania.
Lorenzo Bellocchi, student of the Master of Science in Mathematics, in the course of study in Environmental Sciences of the University of Catania.
Andrea Scapellato, student of the Master of Science in Mathematics, in the course of study in Environmental Science and Natural University of Catania.  Since January 2003, is the referent of the Italian Mathematical Union for the seat of Catania.
 On November 1st, 2009 has been appointed Vice Dean of the Faculty of Mathematical Sciences, Physical and Natural Sciences of the University of Catania.
 On June 18th, 2012 she was awarded a PhD in Mathematics from the University Luleå (Sweden).
 She is actually President of the Master of Science for Environmental Protection.
 In January 2013 she was elected director of the University Center for the Protection and Management of Natural Environments and Agroecosystems, interfaculty center of Catania University.
 Editor in Chief del Journal of Mathematical Research (Canadian Center of Science and Education)
 Editor di Journal of Inequalities and Applications  Recent Developments of Integral Inequalities and its Applications, Springer.

She, has been, and is member of the Editorial Board of the following journals:
 "Abstract and Applied Analysis"
 "Australian Journal of Mathematical Analysis and Applications"
 "Banach Journal of Mathematical Analysis"
 "Boundary value problems"
 "Complex Variables and Elliptic Equations" (triennio20092011). 
She is referee of the following journal:
 "Abstract and Applied Analysis"
 "Analele Stiintifice ale Universitatii Ovidius Constanta, Seria Matematica", stract and Applied Analysis"
 "Applicable Analysis"
 "Applied Mathematics and Computation"
 "Australian Journal of Mathematical Analysis and Applications"
 "Banach Journal of Mathematical Analysis"
 "Bollettino della Unione Matematica Italiana"
 "Boundary value problems"
 "Central European Journal of Mathematics"
 "Communications on Pure and Applied Analysis"
 "Complex Variables and Elliptic Equations"
 "Discrete and Continuous Dynamical Systems"
 "Electronic Journal of Mathematical Analysis and Applications"
 "Fixed Point Theory and Applications"
 "Italian Journal of Pure and Applied Mathematics"
 "Journal of Differential Equations"
 "Journal of Global Optimization"
 "Journal of Inequalities and Applications"
 "Journal of Mathematical Analysis and Applications"
 "Journal of Mathematical Research"
 "Mathematical Inequalities and Applications"
 "Mathematical Institute of the Serbian Academy of Sciences and Arts"
 "Mathematische Annalen"
 "Methods and Applications of Analysis"
 "Nonlinear Analysis Series A: Theory, Methods and Applications"
 "Transaction of the A.M.S.". 
She is reviewer of the following journal:
 "Mathematical Reviews"
 "Zentralblatt fur Mathematik"
 "Nordic Editorial Unit of Zentralblatt".  She is referee of the book by Ioseb Genebashvili, Amiran Gogatishvili, Vakhtang Kokilashvili and Miroslav Krbec, entitled:"Weight Theory For Integral Transforms On Spaces Of Homogeneous Type", published by Longman.
Teaching Activity
 In a. y. 19921993, 19931994 and 19941995 as of 27/04/93, after the appointment of researcher, performs exercises of Calculus I for the degree course in Mathematics. During periods: 22/06/94  29/10/94 and 10/01/95  29/02/96 is in terms of article 4 of law no. 30.11.71. 1204 (mandatory disqualification from work for maternity).
 Member of the PhD course in Applied Mathematics for Engineering, University of Catania, cycles XIX, XX XXI, XXII, in which she teaches Differential Equations for several years. For the PhD course in Mathematics XXIV cycle, University of Catania, held the course: Stability and wellposedness for elliptic and parabolic equations.
 In a. a.199697 / 200102 performs the exercises of Mathematics for the degree course of in Mathematics and the degree course in Geology.
 In a. y. 200304, 2004 05, 200606, 200809, 201112, is the teacher of the course of differential equations for the degree course in Mathematics and a Master in Mathematics of the Faculty of Mathematical, Physical and Natural Sciences of the University of Catania, and is also supervisor of thesis.
 In a. y. 199798 / 20062007 continuously holds courses Calculus I, Mathematical Analysis II and III in the Faculty of Engineering of the University of Catania.
 In a. y. 200102 / 20112012 held uninterruptedly courses of Mathematics, Principles of Mathematics, Mathematical and Statistical Methods, Laboratory of statistical methods and mathematical models and computer applied to the environment, Mathematical models applied to the environment o the degree courses and masters of the Faculty of Mathematical, Physical and Natural Sciences of the University of Catania.
 In a. y. 201112 held courses of Mathematics for the Master of Science Pharmaceutical Chemistry and Technology of the Faculty of Pharmacy of the University of Catania.
 In a. y. 201112 is coordinator of the Partial Differential Equations and Variational inequalities for the Scuola Superiore of Catania.
 In a. y. 200506 / 201213 is continuously appointed teacher of the course of Computer Science of Medicine and Surgery of the Faculty in the University of Catania. In the a. y. 201213 is teacher of the course Mathematical Analysis, of the course Mathematical methods and models for the master of Science in Environmental Sciences and Natural and of the course of Mathematical models applied to the environment for the master in Science for the Protection Environment of the University of Catania.
Scientific Activity
 She is member of the "Conference Secretariat" of the international conference "Boundary value problems for elliptic and parabolic operators" held in Catania, 12 to 14 November 1998.
 Directs the section "Linear Partial Differential Equations" at the international conference "Eleventh International Colloquium on Differential Equations", Plovdiv (Bulgaria), 18 to 23 August 2000.

Organize the following scientific conferences, in collaboration with Italian and foreign colleagues:
National Conference cofinanced by MURST titled "Symmetries, Geometric Structures, Evolution and Memory in PDEs", Taormina 7 to 9 February 2001;
International Conference "FabesChiarenza Lectures 2002", Syracuse 2 to 4 December 2002.
Conference: "Partial differential equations and control theory", Catania May 3, 2003;
Conference coPRIN 2003: "Partial differential equations: methodological aspects, modeling, applications," Ragusa Ibla, 29 June2 July 2005. 
Organize the following sections of conferences, in collaboration with Italian and foreign colleagues:
"Minisymposium on Variational Inequalities and Equilibrium Problems" at the international conference "International Conference of Numerical Analysis and Applied Mathematics 2009 (ICNAAM 2010)," Rhodes 19 to 25 September 2010;
"3nd symposium on variational inequalities and equilibrium problems", at the international conference "International Conference of Numerical Analysis and Applied Mathematics 2009 (ICNAAM 2011)", Halkidiki (Greece) 19 to 25 September 2011;
"Operator Theory: Advances and Applications" at the international conference '"International Conference of the Theory, Methods and Applications on Nonlinear Equations", Texas A & M University, Kingsville (USA), December 1721, 2012;
"Fourth Minisymposium on Variational Inequalities and Equilibrium Problems" at the conference "International Conference of Numerical Analysis and Applied Mathematics 2009 (ICNAAM 2013)", Rhodos (Greece) September 2127, 2013;
“Function Spaces, Interpolation Theory, Fourier Analysis, PDE, Inequalities, Homogenization Theory and applications” at the international conference “ICNPAA 2014: Mathematical Problems in Engineering, Aerospace and Sciences”, Narvik (Norway), July1518, 2014.  She hold PhD Courses and several invitation lectures, which are listed briefly below.
 International conference "Eight International Colloquium on Differential Equations" held in Plovdiv, Bulgaria, from 18 to 23 August 1997 (onehour conference) entitled "Dirichlet problem in Morrey spaces for elliptic equations in nondivergence form with VMO coefficients".
 International conference "Nineth International Colloquium on Differential Equations" held in Plovdiv, Bulgaria, from 18 to 23 August 1998 (onehour conference) entitled: "Regularity of the first derivatives of the solutions of a class of linear elliptic equations of second order with discontinuous coefficients ".
 International conference "Nineth International Colloquium on Differential Equations", a second Invited lecture (one hour conference) titled "Oblique derivative problem in Morrey spaces".
 Gives a lecture entitled: "Wellposedness of a Dirichlet problem for a uniformly elliptic operator", July 29, 1999, at the University of Cologne in Germany, http://www.mi.unikoeln.de/mi/Forschung/ Kawohl/terminuebersicht.html.
 Is invited to hold at the international conference "Tenth International Colloquium on Differential Equations" held in Plovdiv, Bulgaria, from 18 to 23 August 1999 (onehour conference) entitled: "On the L^p estimates for the weak solution of divergence form elliptic equations ".
 Is invited to give to the world conference "World Conference on Nonlinear Analysts 2000", held in Catania in July 2000 a communication entitled "On weak solutions of equations ultraparabolic."
 International conference "Eleventh International Colloquium on Differential Equations" held in Plovdiv, Bulgaria, from 18 to 23 August 2000 (onehour conference) entitled: "Regularity theory associated to operators with nonEuclidean geometry ".
 Hold a conference entitled: "On second order hypoelliptic differential operators" at the national convention cofinanced by MURST titled "Symmetries, Geometric Structures, Evolution and Memory in PDEs" held in Taormina 7 to 9 February 2001.
 In February 2001, as a guest for a research stay at the Newton Institute in Cambridge, a conference held there by invitation, entitled "On a class of operators of KolmogorovFokkerPlanck" http://www.newton.cam.uk/programs/NPD/npdshrtv.html.
 Is invited for a period of study at the Research Center of Mathematics "Ennio De Giorgi"  at the Scuola Normale Superiore in Pisa during the' "Intensive Research Period on Geometric Analysis" in November 2003, and gave a lecture entitled " Some variational and nonvariational problems related to linear partial differential equations ".
 Is invited by Angelo Alvino, Vincenzo Ferone, Giorgio Talenti and Guido Trombetti to give a lecture entitled: "On certain integrals of the calculus of variations," at the national convention, "Theoretical aspects and applications of partial differential equations", Maiori (SA) 2124 April 2004.
 Is hosted for a research period of Atsushi Tachikawa from the University di Tokyo in June 2004 at the Department of Mathematics of the Tokyo University of Science, and having held, June 21, 2004, a conference entitled: "On the minimum of some variational integrals".
 Is invited to hold, at the international conference: "Variational Problems and Related Topics", held at the Research Center "Research Institute of Mathematical Science" of Kyoto, in June 2004, a conference entitled "Regularity results for nonlinear elliptic equations and systems ".
 Held a lecture during the '"International Conference on Elliptic and Parabolics Problems", Cagliari 24 September 25, 2004, entitled: "On the regularity of weak solutions to linear and nonlinear equations and systems".
 Is invited to give a lecture at the international conference "5th ISAAC Congress" in the session "Partial Differential Equations", Catania 25 to 30 July 2005, entitled "Recent trends on some vector valued minimizers".
 Invited by Ermanno Lanconelli, Annamaria Montanari and Sergio Polidoro gave a lecture (45 minutes talk) entitled: "On a class of hypoelliptic differential operators" during the "Meeting on Subelliptic PDE and Applications to Geometry and Finance" held in Cortona, 12 to 17 June 2006.
 It has, by invitation, at the International Symposium "Problems Current Analysis and Mathematical Physics" dedicated to the memory of Gaetano Fichera required to Taormina from 29 June to 2 July 2006, a conference entitled: "Regularity for a class of elliptic systems ".
 Is invited to the conference "Nolinear PDE and application  In occasion of Francesco Nicolosi's 70th birthday", Catania, 22 to 25 June 2009, to give a lecture entitled: "Current topics in Homogeneous Herz spaces and Their Applications".
 Is invited, during the "International Conference of Numerical Analysis and Applied Mathematics 2009 (ICNAAM 2009)" in Crete (Greece) 18 to 22 September 2009, to give a lecture entitled "Recent advances in the calculus of variations and PDE'S" .
 Held a lecture during CIRO'10, The Fifth International Conference on Operations Research ", Marrakech (Morocco), 24 to 27 May 2010, entitled:" Recent development of the minimum of variational integrals. "
 Is invited, during the conference "SIMAI 2010, Joint SIMAI / SEMA Conference on Applied and Industrial Mathematics", Cagliari, 21 to 25 June 2010, to give a lecture entitled "On differentiability on the minimum of nondifferentiable functionals."
 During the "International Conference of Numerical Analysis and Applied Mathematics 2010 (ICNAAM 2010)" in: "2nd symposium on variational inequalities and equilibrium problems", Rhodes (Greece) 19 to 25 September 2010, gave a lecture entitled: "Parabolic Herz spaces and Their Applications ".
 As part of the '"Erasmus InterIstitutionnel Accord", signed by the University of Catania and the Universite 'de Limoges (France), holds a PhD Course in April 2011 entitled "On some integral operators useful to study qualitative properties of partial differential equations ".
 She is invited, from 20 to 27 May 2011, at the international conference "Operators in General MorreyType Spaces and Applications (OMTSA 2011)" at the Department of Mathematics of Ahi Evran University, Kyrsehir (Turkey) to give a plenary lecture (90 minutes ) entitled: "Partial differential equations Involving Morrey spaces as initial conditions".
 Is invited, from 3 to 9 July 2011, at the international conference "22nd International Workshop on Operator Theory and its Applications (IWOTA 2011)" at the Universidad de Sevilla (Spain), to held a conference entitled "On classical operators of real analysis having vanishing mean oscillation functions ".
 During the "International Conference of Numerical Analysis and Applied Mathematics 2011 (ICNAAM 2011), in the section:" 3nd symposium on variational inequalities and equilibrium problems ", Halkidiki (Greece) 19 to 25 September 2011, gave a lecture entitled: "Immune system network and cancer vaccine."
 She is invited to give a lecture (45 minutes), the International School of Mathematics "G. Stampacchia ":" 58th Course: Variational Analysis and Applications ", Erice 14 to 22 May 2012, entitled:" Recent advances on some operators in Local Morrey Type Spaces ".
 She has joined the ICNPAA 2012 WORLD CONGRESS ", 10 to 14 July 2012, in the Vienna University of Technology (Vienna), and there held a conference entitled" On some estimates for the derivative of local minimizers of variational integrals " .
 Holds a PhD Course in Karlstad (Sweden) on May 2013, entitled: “Partial differential equations having discontinuous coefficients”.
 Is invited to participate in the research program of the second semester 2014: "Homogenization and Random Phenomenon" at the MittagLeffler Institute Institute (Sweden) organized by: Luis Caffarelli (University of Texas at Austin), PierreLouis Lions (University Paris 9), Henrik Shahgholian (KTH Royal Institute of Technology), Panagiotis Souganidis (The University of Chicago), Srinivasa Varadhan (Courant Institute of Mathematical Sciences) and there held December 3, 2014 the seminar (1 hour) entitled: "Current new results for solutions of partial differential equations and systems.
Selected publications 20082014
1) RAGUSA M. A., TACHIKAWA A., TAKABAYASHI, H. Partial regularity of p(x)harmonic maps. TRANSACTIONS OF THE AMERICAN MATHEMATICAL SOCIETY, (2013) vol. 365 (6) pp.33293353.
2) GALA S., LIU Q., RAGUSA M. A., Logarithmically improved regularity criterion for the nematic liquid crystal flows in B∞,∞ ^1 space. COMPUTERS AND MATHEMATICS WITH APPLICATIONS, (2013) 65 (11) , pp. 17381745.
3) GALA S., RAGUSA M. A., SAWANO Y., TANAKA H., Uniqueness criterion of weak solutions for the dissipative quasigeostrophic equations in OrliczMorrey spaces. APPLICABLE ANALYSIS (2013).
4) PERSSON L.E., RAGUSA M. A., SAMKO N., WALL P., Commutators of Hardy operators in vanishing Morrey spaces. AIP CONFERENCE PROCEEDINGS, (2012) 1493, pp.859866.
5) RAGUSA M. A., Parabolic Herz spaces and their applications. APPLIED MATHEMATICAL LETTERS, (2012) vol. 25 (10) , pp. 12701273.
6) RAGUSA M. A., Embeddings for MorreyLorentz Spaces. JOURNAL OF OPTIMIZATION THEORY AND APPLICATIONS, (2012) vol. 154 (2), pp. 491499.
7) RAGUSA M. A., Necessary and sufficient condition for a VMO function. APPLEID MATHEMATICS AND COMPUTATION, (2012) vol. 218 (24), pp. 1195211958.
8) RAGUSA M. A., TACHIKAWA A., Estimates of the derivatives of a special class of variational integrals. DISCRETE AND CONTINUOUS DYNAMICAL SYSTEMS, (2011) vol. 31, 4, pp. 14111425, ISSN:10780947.
9) RAGUSA M. A., Homogeneous Herz spaces and regularity results. NONLINEAR ANALYSIS, (2009) vol. 71, p. E1909E1914, ISSN: 0362546X, doi: 10.1016/j.na.2009.02.075
10) POLIDORO S., RAGUSA M. A., Harnack inequality for hypoelliptic ultraparabolic equations with a singular lower order term. REVISTA MATEMATICA IBEROAMERICANA, (2008) vol. 24, pp.10111046, ISSN: 02132230.
11) BENBERNOU S., RAGUSA M.A., TERBERCHE M.(2014)
Remarks on Leray's selfsimilar solutions to the 3D magnetohydrodynamic equations
MATHEMATICAL METHODS IN THE APPLIED SCIENCES, Vol. 37 (17) pp.26152618.