> CURRICULUM VITAE

1. PERSONAL DATA

Name: El Amir Djeffal

Date of Birth: April 01, 1980

Place of Birth: Oued Taga, Batna, Algeria Nationality: Algerian

Contact Address: Rue BB N:04 cité erriadh 1 Batna Algeria

Tel (home): N/A

Tel (Mobile): (+213) 667659689

Fax :N/A

Email: djeffalelamir05@gmail.com , l.djeffal@univ-batna2.dz , djeffal_elamir@yahoo.fr

2. ACADEMIC/PROFESSIONAL PARTICULARS

(a) Field of Specialization:

Mathematics, Applied Mathematics (Numerical analysis, Numerical optimization)

(b) Academic Qualifications

3. Language Proficiency
   1. Arabic: read, spoken and written
   2. English: read, spoken and written
   3. French: read, spoken and written

3. CAREER DETAILS

(a) Academic Positions Held

• • • Lecturer, Department of Economics, Oum El Bouaghi University, Algeria, (09/2010 – 10/2012)
    • Lecturer, Department of SM, Faculty of Science, University of Batna 1, Algeria, (10/2012 – 08/2012)

• • • Assistant professor, Department of S. M, Faculty of Science, University of Batna 1, Algeria, (08/2013 – 08/2014)

• • • Assistant professor, Department of Mathematics, Faculty of Science, University of Batna 2, Algeria, (08/2014 – 08/2015)
    • Associate professor, Department of Mathematics, Faculty of Mathematics and Computer Science, University of Batna 2, Algeria, (08/2015– 07/2021)

• • • Full Professor, Department of Mathematics, Faculty of Mathematics and Computer Science, University of Batna 2, Algeria, (07/2021– now)

(b) Administrative Positions Held

• • • Head of the Common Core of Mathematics and Computer Science, Department of Computer Science, Faculty of Mathematics and Computer Science, University of Batna 2, Algeria, (09/2015 – 04/2016)
    • Vice Dean in charge of Graduation Post, Scientific Research and External Relations, Faculty of Mathematics and Computer Science, University of Batna 2, Algeria, (09/2017 – now)

4. Teaching

(a) Summary of Courses Taught

Before obtaining a budget position as a university teacher in the Department of Mathematics, Faculty of Sciences, Hadj Lakhdar University, Batna, I had the opportunity to teach at different levels and different subjects.

I started as a temporary teacher in the Department of Earth Sciences, Faculty of Sciences, Hadj Lakhdar University, Batna, I was responsible for the Mathematics & Computer Science module for the benefit of fourth-year "urban state engineer" students, in 2003/2004.

In 2005/2006: teaching the subject of Maths 1st Year Department of Biological

Sciences – Hadj Lakhdar University, Batna

In 2008/2009: teaching the following modules at the Department of Natural and Life Sciences and Department of BIOLOGY, Hadj Lakhdar University, Batna

• MATHS- STATISTICS- COMPUTER 1st Year LMD
• Directed work and practical work BIOSTATISTICS 2nd Year LMD
• BIOINFORMATICS 3rd Year LMD Option Biochemistry
• BIOSTATISTICS 3rd Year LMD Option EPP and Environment

In 2009/2010: teaching the following modules at the Department of Natural and Life Sciences and Department of BIOLOGY, University Hadj Lakhdar Batna

• MATHS- STATISTICS- COMPUTER 1st Year LMD
• Directed work and practical work BIOSTATISTICS 2nd Year LMD
• BIOINFORMATICS 3rd Year LMD Option Biochemistry
• Data analysis 1st Year MASTER SNV Option BCG

Since my recruitment to date, I have provided the following lessons:

In 2010/2011: teaching the following modules at the department of Sc.Ec.Ge.Co University Larbi ben M'hidi, O.E.B

• Mathematics 1 (courses and tutorials)
• Mathematics 2 (courses and tutorials)

In 2011/2012: teaching the following modules at the department of S.Ec.Ge.Co University Larbi be M'hidi O.E.B

• Mathematics 1 (courses and tutorials)
• Mathematics 2 (courses and tutorials)

In 2012/2013: teaching the following modules at the Department of Material Sciences (SM), Hadj Lakhdar University, Batna

• Mathematics 1 (Tutorial)
• Numerical Analysis (Tutorial)
• Mathematics 2 (Tutorial)

In 2013/2014: teaching the following modules at Hadj Lakhdar Batna University

1- Department of Material Sciences:

• Mathematics 1 (course)
• Mathematics 2 (course)

2- Department of Mathematics:

• Numerical Analysis 1 (course)
• Numerical Analysis 2 (course)

In 2014/2015: teaching the following modules at Hadj Lakhdar Batna University

1- Department of Material Sciences:

• • Numerical method "second-year chemistry" (course and practical work)

• • Numerical Analysis “first-year Master, water chemistry (courses and tutorials)
  • Computer science “first-year Master, water chemistry (TP)

2- Department of Mathematics:

• • Numerical Analysis 1 (course and practical work)

In 2015/2016: teaching the following modules at Batna 2 University

1- Department of Chemistry (First year Master, water chemistry):

• Numerical Analysis (Courses and Tutorials and Practical Works)
• Computer science “first-year Master, water chemistry (Practical work)

2- Department of Common Core Mathematics and Computer Science

• Algebra (Tutorials)

3- Department of Mathematics:

• Numerical Analysis 1 (course and practical work)

In 2016/2017: teaching the following modules at Batna 2 University

1- Department of Mathematics:

• Numerical Analysis 1 (course and practical work)
• Numerical Analysis 2 (course and practical work)

In 2017/2018: teaching the following modules at Batna 2 University

1- Department of Mathematics:

• • Optimization without constraints (Courses, Tutorials, Practical Works, 3rd-year math license LMD)

In 2017/2018: teaching the following modules at Batna 2 University

1- Department of Mathematics:

• • Optimization without constraints (Courses, Tutorials, Practical Works, 3rd-year math license LMD)

In 2018/2019: teaching the following modules at Batna 2 University

1- Department of Mathematics:

• • Technical English, PhD (Applied Mathematics / Control Theory / Operator Theory)
  • Analysis 3 (3rd year LMD: tutorials )

In 2019/2020: teaching the following modules at Batna 2 University

1- Department of Mathematics:

• • Optimization without constraints (Courses, Tutorials, Practical Works, 3rd-year math license LMD)

In 2020/2021: teaching the following modules at Batna 2 University

1. Department of Mathematics:

• • Research methodology (course: 2nd year master's Functional Analysis and Theory of Operators)
  • Numerical Methods of PDEs (3rd year LMD:Courses, tutorials )

In 2021/2022: teaching the following modules at Batna 2 University

1- Department of Mathematics:

• • Well-posed and regular linear system (Course PhD (Specialty: Optimization and Control)
  • Optimization without constraints (Courses, Tutorials, Practical Works, 3rd-year math license LMD)

In 2022/2023: teaching the following modules at Batna 2 University

1- Department of Mathematics:

• • Well-posed and regular linear system (Course PhD (Specialty: Optimization and Control)
  • Optimization without constraints (Courses, Tutorials, Practical Works, 3rd-year math license LMD)

(b) Research Students Supervised/Trained

List of completed supervised theses

1. BOUNIBANE Bachir. “Extension de quelques méthodes de points intérieurs pour un problème d’optimisation”. Thesis defended in 2019, University of Batna 2, Algeria. Currently teaching researcher at the University of Batna 2, Algeria.

2. LAOUAR Mounia. “Etude théorique et numérique de quelques méthodes de points intérieurs pour l’optimisation semi définie”. Thesis defended in 2021, University of Batna 2, Algeria. Currently teaching researcher at the University of Batna 2, Algeria.

3. GUEMMAZ Abderrahim. “Problème de complémentarité semi définie basé sur quelques fonctions noyaux”. Thesis defended in 2022, University of Batna 2,

Algeria. Currently teaching researcher at the University of Khenchela, Algeria.

List of ongoing theses at the University of Batna 2

1. HALAOUA Madjid. “Stabilité de quelques classes d'équations et d'inclusions différentielles semi-linéaires d'ordre fractionnaire avec impulsions”. Thesis in preparation from October 2020 at LEDPA, University of Batna 2, Algeria.

2. CHALEKH Randa, A feasible interior point algorithm for linear complementarity problem, Thesis in preparation from October 2020 at LEDPA, University of Batna 2, Algeria.

1. 3. Participation in Thesis and Oral Examination Committees

5. RESEARCH

(a) Research Interests

1. Applied Mathematics
2. Numerical Analysis
3. Continuous Optimization
4. Numerical Optimization
5. Mathematical Programming
6. Numerical methods to PDE

(b) Publications/Citations Data

1. 3. Participation in Regional and international Conferences
1. ICOT-2018, International Conference on Operator Theory, Hammamet, Tunisia, 30 April-03 May, 2018.

2. CITO’2019, 3ème Colloque International sur la Théorie des Opérateurs, EDP et ses Applications, El oud, Algérie, 24-25 avril 2019
3. ICMCDM 2019, 25th International Conference on Multiple Criteria Decision-Making, Istanbul Technical University, Istanbul, Turkey, Jun 16-21, 2019

4. The 2nd Mediterranean International Conference of Pure and Applied Mathematics and Related Areas, MICOPAM 2019, Paris, France, August 28- 31, 2019.

5. 3rd International Conference on Mathematics and Statistics, American University of Sharjah, UAE, February 6-8, 2020

6. SERVICE

(a) Membership of Institutional, National, or International Scientific Advisory Boards

1. Faculty Scientific Council, Member, (09/2017- now).
2. Doctoral Training Commission, Member, (09/2017- now).
3. Research team leader, (09/2015- now).

(b) Membership of Conference Committees

1. Member of the organizing committee, organizer, CMA’2016, 3rd Congress of the Algerian Mathematical Society, University of Batna2, Algeria, November 08-09, 2016.

2. Member of the organizing committee, organizer, MISC 2020, 6th International Symposium on Modelling and Implementation Complex System, University of Batna2, Algeria, October 24-26, 2020.

(c) Service as Reviewer

Journals

1. Neurocomputing journal, ISSN No. 0925-2312, Elsevier (since 2016)

2. Journal of Modern Applied Statistical Methods, ISSN No. 1538-9472, Wayne State University Library System (since 2020)
3. Journal of Science and Arts, Valahia University of Targoviste -Institute of Multidisciplinary Research for Science and Technology 13 Sinaia Alley, 130004 Targoviste, Romania (since: 2021)

(d) Membership of Journal Editorial Boards

American Journal of Mathematical and Computer, ISSN No., Publisher (since: 2016)

(e) University Service

1. Faculty of Mathematics and Computer Science, University of Batna 2, Algeria, (09/2018-till date)

Head of competition for access to doctoral training

2. Mathematics Department, University of Biskra, Algeria, (09/2017) Preparation and correction of subject in the doctoral competition

7. List of Publications

1. 1. International Refereed Journals (Published or Accepted only!),

1. Fatima Boukenchouche, El Amir Djeffal, An efficient primal-dual interior point algorithm for linear optimization problems based on a new parameterized kernel function with a logarithmic barrier, accepted on November 29, 2023, to be published in the studies in engineering and exact sciences
2. Randa Chalekh, El Amir Djeffal, New smoothing function for solving absolute value equations, accepted on October 04, 2023, to be published in the Asian- European Journal of Mathematics
3. Randa Chalekh, El Amir Djeffal, Complexity Analysis of an Interior-point Algorithm for CQP Based on a New Parametric Kernel Function, STATISTICS, OPTIMIZATION AND INFORMATION COMPUTING, https://doi.org/10.19139/soic-2310-5070-1761, 2023

4. Bachir Bounibane, Abderrahim Guemmaz, El Amir Djeffal, Theoretical and numerical result for linear semidefinite programming based on a new kernel function, J. Math. Comput. Sci. 2022, 12:201, https://doi.org/10.28919/jmcs/7718.

5. Halaoua Madjid, El Amir Djeffal, bifurcation of positive solutions for fractional differential equations with integral boundary conditions, J. Math. Comput. Sci.

12 (07), 1-18, 2022

6. Abderrahim Guemmaz, El Amir Djeffal, Bachir Bounibane, A PRIMAL-DUAL IPMS FOR SDO PROBLEM BASED ON A NEW KERNEL FUNCTION WITH A

LOGARITHMIC BARRIER TERM, Advances in Mathematics, Scientific Journal, (Union of Researchers of Macedonia, R. North Macedonia), 11 (5), 453–471, 2022.

7. Mounia Laouar, Mahmoud Brahimi, El Amir Djeffal, A method projective for solution of a quadratic semidefinite problem with a new potential function, J. Math. Comput. Sci. (http://scik.org), 12, 1-18, 2022

8. El Amir Djeffal, Mounia Laouar, A primal-dual interior-point method based on a new kernel function for linear complementarity problem, Asian-European Journal of Mathematics 12 (07), 2050001, 2019

9. Bachir Bounibane, El Amir Djeffal, Kernel function based interior point algorithms for linear optimisation, International Journal of Mathematical Modelling and Numerical Optimisation, 158-177, 2019

10. El Amir Djeffal, Lakhdar Djeffal, A path following interior-point algorithm for semidefinite optimization problem based on new kernel function, Journal of Mathematical Modeling 4 (1), 35-58, 2016.

11. El Amir Djeffal, Lakhdar Djeffal, Farouk Benoumelaz, Finding a strict feasible dual solution of a convex optimization problem, Afrika Matematika 27 (1), 13- 21, 2016

12. El Amir Djeffal, Lakhdar Djeffal, Feasible short-step interior point algorithm for linear complementarity problem based on kernel function. AMO - Advanced Modeling and Optimization,15 (2) :157-172, 2013

13. El Amir Djeffal, Lakhdar Djeffal, A New Approach for Solving an Optimization Problem, Applied Mathematical Sciences 6 (41), 2035-2042, 2012.
14. El Amir Djeffal, Lakhdar Djeffal, Finding a strict feasible dual initial solution for quadratic semidefinite programming, Applied Mathematical Sciences 6 (41), 2029-2034, 2012.

(b) Conference Papers

1. DJEFFAL El Amir. Etude numérique de la méthode de la trajectoire centrale pour la programmation convexe sous contraintes linéaires. RMA’09 USTHB ALGER. 10-11 Mai 2009

2. DJEFFAL EL Amir, BENTERKI Djamel. Un algorithme Primal – Dual d’une méthode de point intérieur de type trajectoire centrale pour résoudre un programme linéaire. COLLOQUE INTERNATIONAL SUR LES SYSTEM

DYNAMIQUES ET DISTRIBUES ET CONTROLES. SDDC’09. 08-10 Novembre 2009.

3. DJEFFAL El-Amir, Benterki Djamel. Minimisation d’une fonction convexe sous contraintes linéaires. CONFERENCES INTERNATIONALES DE MATHEMATIQUES ET APPLICATIONS. CIMA’09. 26-28 Octobre 2009

4. DJEFFAL El-Amir, DJEFFAL Lakhdar, BENTERKI Djamel. Etude de quelques Algorithmes de points intérieurs pour la programmation quadratiques.

WORKSHOP SDDC’10. 09-13 Mai 2010.

5. DJEFFAL El-Amir, DJEFFAL Lakhdar, BENTERKI Djamel. A Procedure improving interior point Alghorithms for the linear programming. 24TH MEC EUROPT 2010- IZMIR, TURKEY. 23-26 jun 2010.

6. DJEFFAL El-Amir, DJEFFAL Lakhdar. Design and implementation of operational research techniques for making schedules. INTERNATIONAL CONFERENCE EURO XXIV LISBON. 11-14 july 2010.

7. DJEFFAL El-Amir, DJEFFAL Lakhdar, BENTERKI Djamel. Extension et implémentation numérique d’une méthode de points intérieurs pour la programmation non linéaire. RAMA’07. 24-26 octobre 2010, Batna, Algérie.

8. DJEFFAL El-Amir, DJEFFAL Lakhdar, BENTERKI Djamel. A modified algorithm for the linear programming, DIMACOS’11. 05 - 08 May 2011, Mohammedia, Morocco

9. DJEFFAL El-Amir, DJEFFAL Lakhdar, BENTERKI Djamel. Comparative study between two interior point methods for solving a mathematical programming. JNMA’11. 29 - 30 novembre 2011, Skikda, Algérie.

10. DJEFFAL El-Amir, DJEFFAL Lakhdar, BENTERKI Djamel. A new approach for solving an optimization problem, SISC 2011, Algérie.

11. DJEFFAL El-Amir, DJEFFAL Lakhdar, BENTERKI Djamel. Une approche barrière logarithmique pour résoudre un problème d’optimisation convexe. WTCO 2011. 18 - 20 Décembre 2011, Mostaganem, Algérie.

12. DJEFFAL El-Amir, DJEFFAL Lakhdar, BENTERKI Djamel. Analyse de complexité et implémentation numérique d’une approche pénalisée pour un problème d’optimisation convexe. SMA 2012. 7-8 Mars 2012, Annaba, Algérie.

13. DJEFFAL El-Amir and DJEFFAL Lakhdar. Extension of Karmarkar’s algorithm for solving an optimization problem, AMAT 2012, INTERNATIONAL CONFERENCE ON APPLIED MATHEMATICS and APPROXIMATION THEORY. May

17-20, 2012, Ankara, Turkey.

14. DJEFFAL El-Amir and Lakhdar Djeffal. Complexity analysis predictor-corrector interior-point algorithm for convex nonlinear programming, COSI’2012. 12-15 May 2012, Tlemcen, Algeria.
15. DJEFFAL El-Amir and Lakhdar Djeffal. Procedure impoving for solving a convex optimization problem, Workshop, Système dynamique distributes. 23- 26 septembre 2012, Oum El Bouaghi, Algérie.

16. DJEFFAL El-Amir, DJEFFAL Lakhdar, BENTERKI Djamel. Infeasible interior point methods for quadratic semidefinite programming with NT steps based on kernel function, JIOEdp’12, ENSET Oran, 4-5 November 2012, Algérie.

17. DJEFFAL El-Amir, DJEFFAL Lakhdar. A generic feasible primal-dual interior point algorithm for Linear Optimization based on modified Newton direction, international Conference on Advances in Applied Mathematics, ICAAM 2013. December, 16-19, 2013, Hammamet, Tunisia

18. DJEFFAL El-Amir, DJEFFAL Lakhdar. Predictor-Corrector algorithm combined conjugate gradient with path following interior point for nonlinear Optimization problem, EURO mini-Conference on Optimization in Natural Sciences, Aveiro, 5th-9th Februry 2014, Aveiro, Portugal
19. DJEFFAL El-Amir, DJEFFAL Lakhdar, A new approach to solve a transporation problem in four indices, International Conference on Operator Theory, ICOT 2014, 1 April- 28-May, 2014, Hammamet, Tunisia

20. DJEFFAL El-Amir, DJEFFAL Lakhdar. An improving approach for the linear optimization based on modified Newton direction, Colloque sur l’Optimization et les systèmes d’informations, COSI 2014, 08-10 Juin 2014, Béjaia, Algérie

21. DJEFFAL El-Amir, DJEFFAL Lakhdar, A modified primal-dual method for the linear optimization, Colloque National sur les EDP et Applications, CNEPA’14, 27-28 October, 2014, Bordj Bou Arérridj, Algérie

22. DJEFFAL El-Amir, DJEFFAL Lakhdar. Large and short step primal dual interior point algorithm for semidefinite optimization problem based on new kernel function, Journées Nationales sur les Mathématiques Appliquées, JNMA’14, 26- 28 Nouvembre 2014, Skikda, Algérie.

23. DJEFFAL El-Amir, DJEFFAL Lakhdar. Primal-dual interior point method for linear optimization based on kernel function. INTERNATIONAL CONFERENCE ON ADVANCED IN APPLIED MATHEMATICS, December, 22-25, 2014, Hammamet,

Tunisia.

24. DJEFFAL El-Amir, DJEFFAL Lakhdar and farouk benoumelaz. Large update interior point methods for linear optimization based on a new kernel function. Conférence nationale sur les Systèmes Dynamiques, Equations Différentielles et Applications CNSDDA 2015, 10-11 Mars 2015, OEB, Algérie.

25. DJEFFAL El-Amir, DJEFFAL Lakhdar and farouk benoumelaz. New Complexity Analysis of the Path Following Method for Linear Complementarity Problem. 3rd INTERNATIONAL CONFERENCE ON APPLIED MATHEMATICS AND APPROXIMATION THEORY, AMAT 2015, May, 28-31, 2015, Ankara, Turkey

26. DJEFFAL El-Amir. A modified Newton direction for the linear optimization problem. 2 eme Colloque International sur la théorie des Opérateur EDP et ses Applications 22-23 Novembre 2016, El Oued, Algérie

27. DJEFFAL El-Amir. A new approach of the cutting plane algorithm using interior point method. International Conference on Analysis and Its Application. Ahi Evran University, Kirsehir, Turkey on 12-15 July 2016

28. DJEFFAL El-Amir. A projective interior point algorithm for the linear complementarity problem, International Conference on Advances in Applied Mathematics, Decembre, 19-22, 2016, Monastir, Tunisia

29. DJEFFAL El-Amir. Interior point algorithm for HLCPs based on new trigonometric kernel function. International Conference on Applied Analysis and Mathematical Modeling, July, 03-07, 2017, Istanbul, Turkey

30. DJEFFAL El-Amir. A full Newton step interior point method for circular cone optimization. International Conference on Operator Theory, 30 april- 03 May 2018, Hammamet, Tunisia.
31. DJEFFAL El-Amir. A Parametric Kernel Function Yielding the Best Known Iteration Bound of Interior-Point Methods for Linear Optimization. The 2nd Mediterranean International Conference of Pure and Applied Mathematics and Related Areas, MICOPAM 2019, August 28-31, 2019.Paris, France

32. DJEFFAL El-Amir. An interior point algorithm for absolute value equation based on a parametrized kernel function. 1st International Conference on Mathematics Sciences University of Sharjah, Sharjah,

UAE, November 6-8, 2023

(c) Books/Book Chapters

1. El Amir Djeffal, Lakhdar Djeffal, Farouk Benoumelaz, Intelligent Mathematics II: Applied Mathematics and Approximation Theory, Springer

,87-104, 2016

2. El Amir Djeffal, Lakhdar Djeffal, Djamel Benterki, Advances in Applied Mathematics and Approximation Theory, chapter 16, springer, 263-273, 2014

3. El Amir Djeffal, Etude de quelques méthodes de points intérieurs pour la PC, Book, Éditions universitaires européennes, 1-123, 2017