I am Associate Professor in Mathematics. This means that most of my time is spent between research, teaching, and helping everyone enjoy maths. In collaboration with colleagues, students and technology partners, I develop and deploy numeracy training support to students and staff in our university, companies, and the general public.
I am a firm believer of internationalization in Higher Education and I coordinate the Turing and Erasmus+ schemes for Mathematics, Computing and Engineering.
I hold BSc (2006), MSc (2007) Mathematics from UBB Cluj (Romania), PhD in Applied Mathematics in 2011 (EST Marie Curie Fellow, University of Nottingham) and PhD in Pure Mathematics in 2015 (UBB Cluj). I joined the University of Derby (UoD) in 2012 as a Lecturer in Mathematics, becoming Associate Professor in 2019. In the same year I have become Fellow of the Institute of Mathematics and its Applications (FIMA), and Senior Fellow of the Higher Education Academy (SFHEA) in 2020.
I am a member of the London Mathematical Society (2020-), International Society for Difference Equations (2017-), American Mathematical Society (2014-), Romanian Mathematical Society (2013-) and the Marie Curie Alumni Network (2011-). I am also active member in the Research Centre in Data Science at the University of Derby.
Motto: "The purpose of education is to replace an empty mind with an open one." (M. Forbes)
Teaching responsibilities
My teaching is informed by research and is focused around number theory, simulations, optimization, computational, discrete and industrial mathematics, and also mathematical education, with a focus on maths anxiety. I have been responsible for teaching some UG and PG modules:
With Vretta Inc, in 2020 I developed and deployed online exams which are automatically generated, graded (with moderation), and profile full solutions and feedback. The practice has been praised by externals and adopted by colleagues. These innovations have been presented at high-profile external events or in student blogs.
2015- Mathematical Anxiety (multiple projects in Romania, Turkey, etc)
2014- Bosch Thermotechnology (VSM - Value Stream Mapping)
Research interests
My research interests include number theory, optimization, computational, discrete and industrial mathematics, but also mathematical education, with a focus on maths anxiety.
Much of my work is published in leading journals like Neural Networks, Journal of Global Optimization, Carpathian J Math, Mathematics and Computers in Simulation and Asian Journal of Control. I have authored work with more than 50 collaborators from UK, India, Romania, Thailand, Spain, China, Australia, or Kuwait.
Some of my UG students have produced original research, disseminated through International Symposiums, Mathematical Magazines, or journal papers.
Four of my students have been awarded URSS bursaries to undertake research stages in Romania (Eve H. - Recurrent sequences 2016, Manzal and Chandni M. - Ceramics modelling2018) and Kenya (Navraj G - Sustainable agriculture 2018)
July 2006-present: Qualified Mathematics Teacher (QTS) all levels
2006-2007: MSc (distinction), Real and Complex Analysis (10/10)
2007-2010: EST Marie Curie Fellow, University of Nottingham, UK
2007-2011: PhD, Applied Mathematics, University of Nottingham, UK
2007-2015: PhD, Pure Mathematics, Babes-Bolyai University, Cluj Napoca, RO
2012-2013: PG Cert HE, University of Derby
2012-2016: BA, Pastoral Orthodox Theology, UAB, Alba Iulia, RO
2012: Postgraduate Research Supervision training
Recent conferences
Invited lectures and seminars
05 Jan 2022: American University of Kuwait - Mathematics Department (https://bit.ly/3G9ElON) Invited Talk: On some special polynomials with applications to the study of partitions
25 Oct 2021: The Ontario Colleges Mathematics Association 40th Annual Conference (https://bit.ly/3aPTsPV) Keynote Talk: Mathematics on the Edge: From the classroom to applications and infinity
28 June 2021: iEducare, Malaysia. Talk: Problem Solving skills: A mathematical key to employability
19 May 2021: Data Science Research Seminar (60 min), UoD, UK Talk: Mathematics, poetry in symbols and formulae: infinity, fractals and recurrences
28 April 2021: ANSCSE’24, 24th International Annual Symposium on Computational Science and Engineering Kasetsart University, Nakhon Pathom, Thailand Invited Talk: Computational mathematics: from pseudoprimality to the structure of criminal networks
21 January 2021: Mediterranean College, Greece Guest lecture: Computational Mathematics and Numeracy Training
14 Nov 2020: International forum on Internet of things and Cloud/Edge Coordination (Anhui University, China) Invited Talk: Algorithms for a better life: Applied Mathematics on the Edge
15 October 2020: Analysis and Optimization Research Seminar (60 min), UBB Cluj, Romania Talk: Recurrent Sequences (book presentation) cs.ubbcluj.ro/~grupanopt/
26 September 2019: ISB Bucharest: Problem solving: Your key to securing a job
22-24 January 2020: ICMMCMSE’2020 (Alagappa University, India)
17-24 December 2019: UK-Jiangsu 2020 Workshop, Zhenjiang, Erasmus+ meeting in Ahnui University, Hefei (China)
9 September 2019: Guest speaker at Rajamangala University, Bangkok, Thailand Mathematical education and problem solving in the era of Big Data” Big Data: Theoretical background, impact in the real world and examples”
6 September 2019: NCOA’2019, Bangkok, Thailand Invited talk: Unifying local-global type properties in vector optimization
3-4 September 2019: ICMMCI’2019,Alagappa University, India (Keynote Speaker)
16 Jan 2019: HCC Alba Iulia College, Romania: "Mathematical incursions: Ideas, theory practice"
7 June 2018: UBB Cluj, Romania, Faculty of Mathematics: 1. Complex Analysis Research Seminar (30 min): "On cyclotomic polynomial coefficients"; 2. Analysis and Optimization Research Seminar (60 min): “Traffic Assignment Problem: Methods and Simulations”
15 March 2018: Edge Hill University (talk: Traffic Assignment Problem: On the interplay between Optimization and Equilibrium Problems)
13 February 2018: International Schoool of Bucharest (talk: Problem Solving: The mathematical key to securing a job)
23 May 2017: Optimum versus equilibrium solutions in traffic flow management, MOS UBB Cluj (Research centre for Modelling, Optimization and Simulation)
12-13 October 2017: Kishinev State University, Moldova (Complex recurrent sequences: Techniques, Patterns and Conjectures) (+Prometeu Prim High School talk)
20-22 February 2017: ICMMCMSE'17, Alagappa University, India (Keynote)
12 December 2015: IMA East Midlands branch talk: "Mathematics of beauty: On infinity, fractals and recurrent sequences", Nottingham Trent University
4-7 November 2018: Informs’18 Annual Meeting, Phoenix, AZ (oral presentation) Journal of Global Optimization Informs Issue Highlights: Unifying Local-global Type Properties in Vector Optimizatio
27 June-1 July 2018: ICVANO, Martin Luther University, Halle (oral presentation on transportation modelling)
16-20 December 2017: Fourth Conference on Optimization Methods and Software (talk: Transportation management: On the interplay between Optimization and Equilibrium problems) (with N. Popovici and S. Berry), Cuba
25-28 September 2017: FGI 2017 (talk: Transportation management: methods and algorithms for solution) (with N. Popovici and S. Berry), Padeborn, Germany
4-6 April 2017: New results and conjectures on 2-partitions of multisets, 7th ICSMAO (UAE)
25-29 August 2016: XIIIthColloq Fr-Ro (talk: Extremal properties of explicitly quasiconvex vector functions)
19-22 May 2016: XXthSSMR (talk: On the geometry of linear recurrences in the complex plane)
22-23 March 2016: First TCDM (talk:"On the number of tuples with the same lcm")
17-20 September 2015: ICTAMI 2015, (Talk: "On Arithmetic Functions and Integer Tuples with the Same LCM")
6-10 July 2015: 25th BCC (Talk: "Enumeration of periodic Horadam sequences")
13-21 August 2014: ICM 2014, Seoul, Korea, On the enumeration of periodic generalized Horadam sequences (talk)
6-11 August 2014: ANTS XI, Korea, On certain computational and geometric properties of Horadam orbits (poster)
26-28 March 2014: UKSim2014, Cambridge, UK (Talk, Session Chair)
1-5 July 2013: 24th BCC (Talk: "Enumeration of periodic Horadam sequences")
1-7 July 2010: ESOF 2010 (European Science Open Forum), Italy (poster)
Workshops
11 April 2018: Organiser of the University of Derby Workshop on "Current Issues in Mathematical Education"
26-28 March 2015: Chair of "The Knowledge Triangle: Mathematics Applied to Industry", within the Exploratory Workshop on "Internationalization of Higher Education: Challenges and Rewards", Alba Iulia, Romania
Invited speakers (selection):
09.2018 Preda Mihailescu (Professor, Gottingen): “With Mathematics on the road”(Public lecture)
11.2017 Nicolae Popovici (Professor, UBB cluj): New algorithms for solving discrete vector optimization problems
09.2017 Valeriu Anisiu (Professor UBB Cluj Napoca, Romania): Solving difficult mathematical problems with Computer Algebra Systems (focus on Maple)
03.2016 Dr. Ioan Lucian Popa (UAB Alba Iulia, Romania):Dynamical Systems: A state-of-the-art survey
10.2015 Ashley Buckner (Senior OR Analyst, GORS): “From Electrons to the Unemployed: A (Rather) Random Walk through Maths, Statistics and Modelling
02.2015 Colm Mulcahy (Professor of Mathematics, US):“Mathemagic with a deck of cards”
10.2013 Dr Daniel Porumbel (Lille, France): “Upper and Lower Bounds for Capacitated Arc Routing”
Experience in industry
2018: Maple (Mathematical Education Software – now deployed at University of Derby for developing E-Assessment in Maths)
This product allows the testing of advanced mathematics, offering step-by-step solutions and automatic marks.
2018: Vretta – Numeracy skills platform. 3 Pilot projects deployed at University of Derby starting from September 2018.
In Summer 2018 we have implemented the Advanced Numeracy Skills certificate (4CC503 Computational Maths and 3EJ502 Preliminary Mathematics) and Essential Numeracy Skills certificate (for Careers Futures Awards), to be granted by University of Derby and Vretta.
2017: IPEC Alba Iulia (Ceramics coloring project)
2017: UPN (Logistics, Maths Group Proect at University of Derby)
2014: Bosch Thermotechnology (VSM - Value Stream Mapping)
International experience
In 2019 I initiated the first successful Erasmus ICM 107 submission (87.5k Euro for staff and student mobilities with Anhui University, China).
In April 2021 I have coordinated the School of Computing and Engineering submission for the Turing scheme (2021-22).
New Erasmus+ links:
1. Babes-Bolyai University, Cluj Napoca, Romania (Mathematics and Computer Science): Erasmus+@UBB (Dec 2014, Lead Dr. Ovidiu Bagdasar)
2. "1 DECEMBRIE 1918" University, Romania (Computer Science, Mathematics, Business): Erasmus+@UAB (Dec 2014, Lead Dr. Ovidiu Bagdasar)
3. Bogazici University, Istanbul, Turkey (Mathematics): Erasmus+@Bogazici (Nov 2015, Lead Dr. Ovidiu Bagdasar)
4. University of Maribor, Slovenia (Mathematics): Erasmus+@Maribor (Dec 2015, Lead Dr. Ovidiu Bagdasar)
5. Universidade da Beira Interior, Portugal (Computer Science and Mathematics) Erasmus+@UBI (Jul 2017, Lead Dr. Virginia Franquerra)
6. University of Catania, Italy (Mathematics and Statistics, ICT) Erasmus+@Catania (Mar 2018, Lead Prof. Antonio Liotta)
7. University of Calabria, Italy (Mathematics and Statistics, ICT) Erasmus+@Calabria (Mar 2018, Lead Prof. Antonio Liotta)
Erasmus+ visits:
June 2019: Nevsehir University, Turkey
May 2019: UBB Cluj Napoca, Romania
January 2019: UAB Alba Iulia, Romania
October 2018: Nevsehir University, Turkey
January 2018: UAB Alba Iulia, Romania
May 2018: UBB Cluj, Romania
May 2017: UAB Alba Iulia, Romania
January 2017: UBB Cluj, Romania
May 2016: UBB Cluj, Romania
January 2016: UAB Romania, Alba Iulia, Romania (visited first Erasmus+ Maths student from Derby)
May 2015: UBB Cluj, Romania
March 2015: UAB Romania, Alba Iulia, Romania
Erasmus+ guests:
Mar 2019 - Dr Ioan Lucian Popa, UAB Alba Iulia, Romania
Feb 2019 - Dr Mehmet Sari, Nesen Erturgul, Nevsehir, Turkey
Sept 2018 - Dr Ioan Lucian Popa, UAB Alba Iulia, Romania
May 2018 - Professor Nicolae Popovici - UBB Cluj Romania
Sept 2017 - Professor Valeriu Anisiu - UBB Cluj Romania
May 2017 - Professor Nicolae Popovici - UBB Cluj Romania
Mar 2017 - Dr Ioan Lucian Popa, UAB Alba Iulia, Romania
Jun 2016 - Dr Zalan Bodo - UBB Cluj Romania
May 2016 - Professor Nicolae Popovici - UBB Cluj Romania
Mar 2016 - Dr Ioan Lucian Popa, UAB Alba Iulia, Romania
May 2015 - Professor Nicolae Popovici - UBB Cluj, Romania
Erasmus PhD students:
July-Sept 2018: Elif Tekin (PhD student, Belikeshir, Turkey) Project: Water Treatment Optimization
Sept 2017-Jan 2018: Imre Szigmond (PhD student, UBB Cluj, Romania) Project: Gamification within Higher Education
Research stages:
November 2017: Research visit to IPEC Alba Iulia as part of the Research Project CMRCC
February 2017: Research visit to the Ramanujan Centre for Higher Mathematics, Alagappa University, India
September 2016: Research visit to UAB and IPEC Alba Iulia, RO
Conference Organisation:
UoD Workshop on "Effective Mathematical Education: Improving accessibility, reducing anxiety” (5 December 2018)
UoD Workshop on “Current issues in the Mathematical Education” (11 April 2018)
Cavallaro, A. Ficara, P. De Meo, G. Fiumara, S. Catanese, O. Bagdasar, Antonio Liotta, Criminal networks analysis in missing data scenarios through graph distances, PloS one 16 (8), e0255067 (2021) [IF: 2.740].
Andrica, O. Bagdasar, On k-partitions of multisets with equal sums, Ramanujan Journal of Mathematics, 55, 421-435 (2021)
Andrica, O. Bagdasar, On Generalized Lucas pseudoprimality of level k, Mathematics 9 (8), 838 [IF: 1.747]
Andrica, O. Bagdasar, On some new arithmetic properties of the generalized Lucas sequences, Meditt. J. Math (2021) [IF: 1.220]
Andrica, O. Bagdasar: Pseudoprimality related to the generalized Lucas sequences, Mathem. Comput Sim. (2021) [IF: 1.620]
Andrica, O. Bagdasar, G.-C. Turcas, On some new results for the generalised Lucas sequences, Analele Stiintifice ale Universitatii Ovidius Constanta 29(1), 17-36 (2021) [IF: 0.452]
J Dianavinnarasi, R Raja, J Alzabut, J Cao, M Niezabitowski, O Bagdasar, Application of Caputo–Fabrizio operator to suppress the Aedes Aegypti mosquitoes via Wolbachia: An LMI approach, Mathematics and Computers in Simulation (2021) [IF: 1.620]
J Dianavinnarasi, R Raja, J Alzabut, M Niezabitowski, O Bagdasar, Controlling Wolbachia Transmission and Invasion Dynamics among Aedes Aegypti Population via Impulsive Control Strategy, Symmetry 13 (3), 434 (2021) [IF: 2.645]
A Pratap, R Raja, J Cao, C Huang, M Niezabitowski, O Bagdasar, Stability of discrete‐time fractional‐order time‐delayed neural networks in complex field, Mathematical Methods in the Applied Sciences (2021) [IF: 2.740]
L Erhan, M Ndubuaku, M Di Mauro, W Song, M Chen, G Fortino, Bagdasar, A. Liotta, Smart anomaly detection in sensor systems: A multi-perspective review, Information Fusion, 67, 64-79 (2021) [IF: 13.669]
B Kang, F Malute, O Bagdasar, H Choo, Internet of Planet (IoP): A New Era of the Internet, IT Professional 23 (3), 76-81 (2021)
Cavallaro, L., Bagdasar, O., De Meo, P. et al. Artificial neural networks training acceleration through network science strategies. Soft Comput (2020) [IF: 3.050]
B Kang, J Lee, O Bagdasar, H Choo , Cloud IoT-based Jukebox Platform: A Music Player for Mobile Users in Café, Journal of Internet Technology 21 (5), 1363-1374 (2020) [IF: 0.935]
B Kang, F Malute, O Bagdasar, H Choo, DETN: delay-efficient tolerant network for Internet of Planet, IEEE Sensors Journal 21 (2), 2377-2384 (2020) [IF: 3.076]
W Chartbupapan, O B., K Mukdasai, A Novel Delay-Dependent Asymptotic Stability Conditions for Differential and Riemann Liouville Fractional Differential Neutral Systems with Constant Delays and Nonlinear Perturbation, Mathematics 8 (1), 82 [IF: 1.105]
Cavallaro, A. Ficara, P. De Meo, G. Fiumara, S. Catanese, O. Bagdasar, Antonio Liotta, Disrupting Resilient Criminal Networks through Data Analysis: The case of Sicilian Mafia, PloS one 15 (8), e0236476 (2020) [IF: 2.740].
O. Bagdasar, N. Popovici, S. BerryTraffic Assignment: On the Interplay between Optimization and Equilibrium Problems, Optimization 1-18 (2020) [IF: 1.860]
Cao, A. Pratap, R. Raja, R. P. Agarwal, O. Bagdasar, Multi-weighted complex structure on fractional order coupled neural networks with linear coupling delay: A Robust synchronization problem, Neural Processing Letters [IF: 1.787]
Pratap, R. Raja, C. Sowmiya, O. Bagdasar, J. Cao, G. Rajchakit, Global projective lag synchronization of fractional order memristor based BAM neural networks with mixed time varying delays, Asian Journal of Control (2018) [Impact Factor: 1.528]
Andrica, O. Bagdasar, Some remarks on a general family of complex polynomials, Applicable Analysis and Discrete Mathematics [IF: 0.887] (2019)
D. Andrica, O. Bagdasar, A new formula for the coefficients of Gaussian polynomials (Analele Stiintifice ale Universitatii Ovidius Constanta) [IF: 0.452]
Andrica, O. Bagdasar, On cyclotomic polynomial coefficients, Malaysian Journal of Mathematics 12pp
O. Bagdasar, S. Berry, S. O’Neill, N. Popovici, R. Ramachandran: Traffic Assignment: Methods and Simulations for an Alternative Formulation of the Fixed Demand Problem, Mathematics and Computers in Simulation (2019) [IF: 1.476]
Andrica, O. Bagdasar, Some remarks on 3-partitions of multisets”, Proc. of 2nd IMA TCDM’18, Electronic Notes in Discrete Math, Elsevier 70 (2018), 1-8.
O. Bagdasar, R.-J. Tatt, On some new arithmetic functions involving prime divisors and perfect powers, Proc. of 2nd IMA TCDM’18, Electronic Notes in Discrete Math, Elsevier 70 (2018), 9-15.
A. Bagdasaryan, O. Bagdasar, On an arithmetic triangle of numbers arising from inverses of analytic functions, Proc. of 2nd IMA TCDM’18, Electronic Notes in Discrete Math, Elsevier 70 (2018), 17-24.
P Mrozek, J Panneerselvam, O Bagdasar, Efficient Resampling for Fraud Detection During Anonymised Credit Card Transactions with Unbalanced Datasets, 2020 IEEE/ACM 13th International Conference on Utility and Cloud Computing
D. Andrica, O.B., New results and conjectures on 2-partitions of multisets, 7th ICSMAO (UAE) (2017)
O.B., A. Birlutiu, M. Chen and I-L Popa, Qualitative Case Study Methodology: Automatic Design and Correction of Ceramic Colors, 21stICSTCC, Romania (2017)
O. B., Using Computer Tests to Teach Mathematics - A Study Case, 4th International Symposium "Mathematical Education in the Current European Context", Romania (2013)
O. B., The Number of Pairs of Integers with the Same lcm, 3rd International Symposium "Mathematical Education in the Current European Context", Romania (2012)
Open Questions and Symposium papers:
M. Stubley, O.B., On the role of Open Questions in the Mathematical Education, 7th International Symposium "Mathematical Education in the Current European Context", December 16th, Romania (2016)
G. Illsley, O.B., Understanding the fear of mathematics: Recipes for students and teachers, 8th International Symposium "Mathematical Education in the Current European Context", December 16th, Romania (2017).
O.B. and M. Stubley, On OQ.3184, Octogon Math. Mag, 24 (2) (2016)
O.B. and M. Stubley, On OQ.4595 and OQ.4537, Octogon Math. Mag, 25 (1) (2017)
O.B., A. Birnie, C. Pissarides and A. Ahmad, On OQ.3166 and OQ.3484 in Octogon Math. Mag, 24 (2) (2016)
O.B., A. Birnie, C. Pissarides and A. Ahmad, On OQ.3928, On OQ.4259, On OQ.4537 in Octogon Math. Mag, 25 (1) (2017)
O.B., R. Connis and A. Baker: On OQ.4836 and OQ.4837 in Octogon Math. Mag, 25 (1) (2017)
