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Bio and photos of the speakers

First International Mathematical School on Algebraic Geometry in Tunisia

Organized by the TWMA

11-15 September 2017, Hammamet

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A mini-course by Marie-Françoise ROY, France

Marie-Françoise Roy was a student from École Normale Supérieure de Jeunes Filles in Paris and received her Habilitation in mathematics in 1981. She became Professor in Rennes in 1985, after being Assistant then Associate Professor at University Paris Nord, and University of Niamey, Niger (1981-1983). She served as President of the Commission of CNRS for mathematics from 1991 to 1995, and was Director of Institut de Recherches Mathématiques de Rennes from 2001 to 2004. From 2007 to the end of 2013, Roy was Scientific Advisor for mathematics in Subsaharian Africa at CIMPA/ICPAM. She was President of the Société Mathématique de France from 2004 to 2007. A member of the steering committee of the Newton Institute from 2009 to 2013, she served on several editorial boards. First President of Femmes et Mathématiques from 1987 to 1989, she has been Convenor of European Women in Mathematics from 2009 to 2013 and is currently the chair of the International Mathematical Union Committee for Women in Mathematics. She co-founded Tarbiyya Tatali, a network of associations in Niger and France helping the self development of the people of Niger, in 1997. www.tarbiyya-tatali.org She was awarded the Prix Irène Jolliot Curie in 2004 (recognition mention) and became Chevalier de la Légion d'Honneur in 2009, Officier de l'Ordre National du Mérite in 2015 and Doctor Honoris Causa of the University of Cantabria in 2015. Her mathematical work and interest is focused on real algebraic geometry, and algorithms. She co-initiated the Mathematics Algorithms and Proofs international research group. Her major research contributions have been concentrated on the study of the real spectrum of a ring and on the complexity of algorithms in real algebraic geometry (quantifier elimination, deciding connectivity, degree bounds for Hilbert 17 th problem).

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A mini-course by Elisa LORENZO GARCIA, FRANCE

Elisa Lorenzo García, original from Madrid (Spain) got her Bachelor degree in Mathematics by the

Universidad Complutense de Madrid in 2009. After that she moved to Barcelona (Spain) to take her

master studies and her Ph.D. at the Universitat Politècnica de Catalunya in 2014. Just after that she started

a postdoc position at Universiteit Leiden (The Netherlands), where in July 2015 she was appointed as

Assistant Professor. Since September 2016, she works at Université de Rennes (France) as Maître de

Conférences.

In the meanwhile she did different 2-3 months research stays at Groningen University (The Netherlands),

Universita degli studi Tor Vergata (Italy), Insitut Fourier (France) and Microsoft Research (USA).

Her research is mainly divided in 3 topics: arithmetic properties of genus 3 curves (Galois cohomology,

twists, moduli spaces, reductions mod p), arithmetic statistic (Frobenius distributions, Sato-Tate

conjecture) and applications of arithmetic geometry in cryptography (construction of CM curves and point

counting algorithms).

Since January 2015, she is part of the Spanish commission for Women in Mathematics (MyM) at the

Spanish Mathematical Society (RSME) and coordinator from Spain in the European Women in

Mathematics. She coordinates de MyM Facebook group and the MyM section of the weekly review of the

RSME. She will organize the next edition of the collaborative conferences WIN-E (Women in Numbers

Europe).

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A conference by Mouadh AKRICHE, TUNISIA

Mouadh Akriche, born in November 27, 1977, is a Tunisian mathematician specializing in Algebraic

Geometry. He studied in the Faculty of Sciences of Bizerte and Fourier Institute, and received his Ph.D.

from the University of Savoy in 2005, under the supervision of Prof. Frédéric Mangolte. He became a

Lecturer at IPEIB (University of Carthage, from 2011 up to now), after being Assistant at the Faculty of

Sciences of Bizerte (2006-2007) and Lecturer at the University of Monastir (2007-2011).

He is an elected member of the Tunisian Mathematical Society Steering Committee (2014-2016) and (2016-

2019) with the special responsibility for university activities (2014-2016) and external relation of TMS

(2016-2019).

His mathematical work is focused on real algebraic geometry. He is interested in real algebraic surfaces

fibered by curves of low genus. His main contributions are: classification of possible singularities of real

fibrations by genus 2, invariants that determinate in a unique way a real family of curves of genus 2 and

obstructions to the topology of real part of elliptic surfaces and tetragonal curves, with intermediate values

(for elliptic fibrations).

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A conference by Leila BEN ABDELGHANI, TUNISIA

Leila Ben Abdelghani is a Professor of Mathematics at the Faculty of Sciences in Monastir. Her undergraduate studies were at the University of Tunis, from where she obtained a Master Degree in 1994. For her graduate studies, she obtained her PhD at the University of Bourgogne (France) in 1998. Her thesis, titled "Espace des représentations du groupe d'un noeud dans un groupe de Lie", was written under the supervision of Daniel Lines. Her research work concernes, essentially, the representation and character varieties of 3-manifolds and especially of the exterior of a knot in the three-sphere. Her main contributions have been focused on the study of the local structure of the representation variety near an abelian representation and the theory of deformation of reducible representations.

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A conference by Abdelhamid BEZIA, ALGERIA

Abdelhamid Bezia, born April 13, 1989, is an Algerian mathematician specializing in Algebraic Geometry,

and Partial Differential Equations. He was a student from Faculty of mathematics, University of Sciences

and Technology. He will discuss his Ph.D. on March 2017, under the supervision of Prof. K. Betina.

He worked separately on two domains, first on theoretical applications of computational methods and he

focused on the smooth surfaces in P_{Q}³ with a finite number of rational points. This work was supervised

by Prof. Daniel Coray form the University of Geneva. Also, he work in collaboration with Prof. Anouar Ben

Mabrouk form the University of Monastir in Tunisia and he is interested in the use of Algebraic operators

as the Lyapunov Sylvester to develop computational methods for solving PDE’s in higher dimensions.

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A conference by Saber BOUANANI, TUNISIA

Saber BOUANANI, born April 17, 1981, is a Tunisian mathematician specializing in number theory and

cryptography. He was a student from Faculty of Sciences of Tunis, and received his Ph.D. in 2016, under the

supervision of Prof. Sami OMAR. He became Assistant at ISAMM (University of Manouba) (2016 up to

now), after being Assistant at the Faculty of Sciences of Gafsa (2012-2016) and contractual Assistant at the

university of Monastir (2007-2011). He is a member of the research laboratory LATAO at faculty of sciences

of Tunis. His mathematical work is focused on number theory and cryptography. He is interesting in

functions fields and the zeta function of the functions fields. His main contributions are extending Li’s

criterion for a function field K/Fq of genus g over a finite field Fq and proving that the Li's (lambda_n)

coefficients are increasing in n. On another hand, he used some tools of algebraic geometry to construct a

new hash function used in cryptography.

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A conference by Delphine BOUCHER, FRANCE

Delphine Boucher was a student from Université de Limoges where she obtained in 2000 a thesis in

symbolic computation and differential Galois theory with an application to the non-integrability of the

planar three-body problem. In 2001 she became "maître de conférences" in "Université de Rennes 1". Her

actual mathematical work is focused on the application of "skew polynomials" to coding theory.

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A conference by Loubna GHAMMAM, FRANCE

Loubna Ghammam, born October 09, 1988, is a Tunisian Mathematician specializing in Algebraic Geometry

(Cryptography). She was a student from Faculty of Sciences of Monastir and Institut Supérieur

d'Informatique et de Mathématique de Monastir, and received her Ph.D. from University of Rennes 1 in

France and Faculty of Sciences of Monastir in December 2016, under the supervision of both Prof. Sylvain

Duquesne (France) and Leila Ben Abdelghani (Tunisia) . She is actually in a post-doc at ENSI-Caen,

University of Caen in France.

She is a member of the TWMA association where she is responsible for Membership 2017 and also TWMA

Representative at Faculty of Science of Monastir.

Her mathematical work is focused on real algebraic geometry. She is interested in cryptographic aspects.

Her main research topics are the study of the arithmetic in finite fields, the pairing on elliptic curves for

different security levels and the implementation of these pairings in restricted environments in order to

solve many related problems. She is also focusing on material attacks on elliptic curves (studying parings or

scalar multiplication).

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A conference by Khadija MBARKI, TUNISIA

Khadija Mbarki was born in Tozeur in 28th September 1987. She is a teacher of Mathematics in the

secondary school Imtiez in Tozeur since 23 September 2011. Now, she is a graduate Ph.D. student at the

Faculty of Sciences of Monastir (FSM) from where she obtained her bachelor in 2010 and her master

degree in 2012. Her thesis entitled “Coefficients de Dirichlet des fonctions L de puissances symétriques” is

directed by Prof. Fethi Ben Said in FSM. Her topics are elementary and analytic number theory and her

main interests are modular forms, automorphic L-functions, sign changes of multiplicative Dirichlet

coefficients, means of multiplicative functions and the sum of digits functions

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A conference by Mohammad SADEK, EGYPT

Mohammad Sadek is an associate professor at the American University in Cairo. He obtained his B.Sc. in Mathematics from Cairo University in 2005. He got a Certificate in Advanced Study in Mathematics from Cambridge University in 2006. He received a Ph.D. from Cambridge University, 2010, under the supervision of Tom Fisher. His research interests are in arithmetic geometry. In particular, he is interested in the arithmetic of elliptic curves and hyperelliptic curves.

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A conference by Maha SMIRANI, TUNISIA

Maha Smirani, born October 10, 1980, is a Tunisian Mathematician specializing in Algebraic geometry. She

was a student from Faculty of Sciences of Bizerte (FSB), and received her Ph.D. from FSB in 2012, under the

direction of Mouadh Akriche and Belgacem Draouil. She became a lecturer at IPEIBizerte (University of

Carthage) (2016-2017), and lecturer at the University of Gafsa (2012-2016).

Her mathematical work is focused on real algebraic geometry. She is interested in real algebraic surfaces

fibered by curves of genus one. Her main contributions are: an upper bound for the number of nested

ovals of real tetragonal curves embedded in a Hirzubruch surface, the study of the topology of the real part

of real elliptic surfaces with double section and the study of deformation of complex algebraic surfaces

fibered by genus 2.

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A conference by Najib OULED AZAIEZ, TUNISIA

Najib Ouled Azaiez is a Tunisian Mathematician specializing in Arithmetic Geometry. He is graduated from Paris 11 (Orsay). He got his MS from University of Paris 6 in 2001. Next, he obtained his Ph.D. at the University of Paris 6, in 2005, under the supervision of Professor Don Zagier from Collège de France and Max Planck Institute. His Ph.D. Thesis is titled “ Formes quasi-modulaires sur des groupes modulaires co-compactes et Restrictions des formes modulaires de Hilbert aux courbes modulaires”. His research interest falls within the area of Automorphic forms, Algebraic Curves, Intersection Theory, Special Functions, Commutative Algebra and Number Theory. His main contribution have been focused on the study of the structures of rings of quasimodular forms and the restrictions of Hilbert modular forms to Hirzebruch-Zagier cycles. His work is cited by many mathematicians such as Sorin Dumistrescu on his paper titled ''Meromorphic almost rigid geometric structures''. He joined the Faculty of Sciences of Sfax (University of Sfax) from 2008 up to now.

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A conference by Ihsen YENGUI, TUNISIA

Ihsen YENGUI is a Professor of Mathematics at the University of Sfax in Tunisia. His major fields of specialization are: Constructive Algebra, Algebraic Geometry, Commutative Algebra, Computer Algebra.

He obtained a Presidential Prize after his participation at the ``Fourth Maghrebian Olympiad of Mathematics" (A competition between young students from Tunisia, Algeria, Morocco, Lybia and Mauritania; held in Tunisia in 1990).

He received the T.W.A.S (Third World Academy of Sciences) Prize for the best young mathematicians working and living in Africa on the occasion of the African Congress of Mathematics (Tunisia, 2004).

He received the Young African mathematician medal award 2009. Medal given by the National Mathematical Centre, Abuja (Nigeria) (8 December 2009).

In 2012-2013, he obtained a “Special Georg Forster fellowship” from the Humboldt Foundation to visit Aachen University RWTH (Germany).

In 2014, he was awarded the ISESCO (International Islamic Organization for Education, Science and Culture) Prize for Science and Technology 2014 (for Mathematics).

He is a National Co-Coordinator (in Tunisia) for the African network RAGAAD (African network of Algebra and Geometry Applied to the Development) and member of its scientific council.

He is a reviewer for the AMS since 2004 and for the Zentralblatt Math since 2012.

He is a referee for the Journal of Pure and Applied algebra, Manuscripta Mathematica, Proceeding of the American Mathematical Society, Communications in Algebra, Journal of Commutative Algebra, Linear Algebra and Applications, Czechoslovak Mathematical Journal, Algebras and Representation Theory.

Book: Constructive Commutative Algebra – Projective modules over polynomial rings and dynamical Gröbner bases. Lecture Notes in Mathematics, no 2138, Springer 2015.