Research
I am interested in all aspects of finite fields and their applications including: polynomials, normal bases, primitive elements, permutation polynomials, coding theory and cryptography.
Mathematical journal publications
- Translates of completely normal elements and the Morgan-Mullen conjecture
T. Garefalakis and G. Kapetanakis
Canad. Math. Bull., to appear, 2026
- An estimate for incomplete mixed character sums and applications
A.C. Mazumder, G. Kapetanakis, S. Kala and D.K. Basnet
Finite Fields Appl., 117(102874): 17pp., 2027
- Normal and primitive normal elements with prescribed traces in intermediate extensions of finite fields
A.C. Mazumder, G. Kapetanakis and D.K. Basnet
Finite Fields Appl.,110(102745): 14pp., 2026
- Existence of special types of primitive pairs in finite fields avoiding affine hyperplanes
H. Hazarika, G. Kapetanakis and D.K. Basnet
Appl. Algebra Engrg. Comm. Comput., 37:879-894, 2026
- Normal points on Artin-Schreier curves over finite fields
G. Kapetanakis and L. Reis
Comptes Rendus Math., 365:541-554, 2025
- Fq-primitive points on varieties over finite fields
S. Takshak, G. Kapetanakis and R.K. Sharma
Finite Fields Appl., 103(102582): 8pp., 2025
- The trace of primitive and 2-primitive elements in finite fields, revisited
S.D. Cohen and G. Kapetanakis
Southeast Asian Bull. Math., 48(2): 161-184, 2024
- The existence of Fq-primitive points on curves using freeness
S.D. Cohen, G. Kapetanakis and L. Reis
Comptes Rendus Math., 360:641-652, 2022
- On the existence of primitive normal elements of rational form over finite fields of even characteristic
H. Hazarika, D.K. Basnet and G. Kapetanakis
Internat. J. Algebra Comput., 32(2):357-382, 2022
- Finite field extensions with the line or translate property for r-primitive elements
S.D. Cohen and G. Kapetanakis
J. Aust. Math. Soc., 111(3):313-319, 2021
- The translate and line properties for 2-primitive elements in quadratic extensions
S.D. Cohen and G. Kapetanakis
Int. J. Number Theory, 16(9):2029-2040, 2020
- The trace of 2-primitive elements of finite fields
S.D. Cohen and G. Kapetanakis
Acta Arith., 192(4):397-419, 2020
- Further results on the Morgan-Mullen conjecture
T. Garefalakis and G. Kapetanakis
Des. Codes Cryptogr., 87(11):2639-2654, 2019
- A Swan-like note for a family of binary pentanomials
G. Kapetanakis
Appl. Algebra Engrg. Comm. Comput., 30(5):361-372, 2019
- Variations of the primitive normal basis theorem
G. Kapetanakis and L. Reis
Des. Codes Cryptogr., 87(7):1459-1480, 2019
- On the existence of primitive completely normal bases of finite fields
T. Garefalakis and G. Kapetanakis
J. Pure Appl. Algebra, 223(3):909-921, 2019
- Prescribing coefficients of invariant irreducible polynomials
G. Kapetanakis
J. Number Theory, 180:615-628, 2017
- Enumerating permutation polynomials
T. Garefalakis and G. Kapetanakis
Finite Fields Appl., 47:85-93, 2017
- A note on the Hansen-Mullen conjecture for self-reciprocal irreducible polynomials
T. Garefalakis and G. Kapetanakis
Finite Fields Appl., 35:61-63, 2015
- Normal bases and primitive elements over finite fields
G. Kapetanakis
Finite Fields Appl., 26:123-143, 2014
- An extension of the (strong) primitive normal basis theorem
G. Kapetanakis
Appl. Algebra Engrg. Comm. Comput., 25(5):311-337, 2014
- On the Hansen-Mullen conjecture for self-reciprocal irreducible polynomials
T. Garefalakis and G. Kapetanakis
Finite Fields Appl., 18(4):832-841, 2012
Other journal publications
- Teaching perspectives of the Frobenius coin problem of two denominators
G. Kapetanakis and I. Rizos
Teach. Math., XXVI(2):57-67, 2023
Preprints
- Existence of primitive normal pairs over finite fields with prescribed subtrace
K. Chatterjee, G. Kapetanakis, S.K. Tiwari and H. Sharma
arXiv:2405.11463 [math.NT], 2024
- An inductive proof of the Frobenius coin problem of two denominators
G. Kapetanakis and I. Rizos
arXiv:2308.03050 [math.NT], 2023
- Primitive normal pairs of elements with one prescribed trace
A.C. Mazumder, H. Hazarika, D.K. Basnet and G. Kapetanakis
arXiv:2306.03426 [math.NT], 2023
Theses
Talks
- Jul 2026: Translates of completely normal elements and the Morgan-Mullen conjecture
3rd Congress of Greek Mathematicians
Athens, Greece
- May 2026: Translates of completely normal elements and the Morgan-Mullen conjecture
Department of Mathematics, University of Western Macedonia
Kastoria, Greece
- Dec 2025: Translates of completely normal elements and the Morgan-Mullen conjecture
3rd Greek Number Theory Meeting
Patras, Greece
- Jul 2025: Normal and primitive normal elements with prescribed traces in intermediate extensions of finite fields
30th Conference on Applications of Computer Algebra (ACA 2025)
Heraklion, Greece
- May 2025: An estimate for incomplete mixed character sums and applications
10th Greek Algebra and Number Theory Conference
Heraklion, Greece
- Dec 2023: The existence of Fq-primitive points on curves using freeness
1st Greek Number Theory Meeting
Athens, Greece
- Jun 2023: The line and the translate properties for r-primitive elements
15th International Conference on Finite Fields and Their Applications (Fq15)
Paris, France
- May 2023: The line and the translate properties for r-primitive elements
9th Greek Algebra and Number Theory Conference
Thessaloniki, Greece
- Apr 2023: Towards the primitive completely normal basis theorem
Greek Algebra & Number Theory Seminar (GANT)
Greece
- Dec 2021: The existence of Fq-primitive points on curves using freeness
Carleton Finite Fields eSeminar
Ottawa, Canada
- Nov 2021: The existence of Fq-primitive points on curves using freeness
University of the Aegean Graduate Program Workshop
Karlovasi, Greece
- May 2021: Towards the primitive completely normal basis theorem
Department of Mathematics and Applied Mathematics, University of Crete
Heraklion, Greece
- Apr 2019: The line and the translate problem for r-primitive elements
FENS, Sabanci University
Istanbul, Turkey
- Nov 2018: (Almost) normal and (almost) primitive elements of finite fields
Department of Mathematics and Applied Mathematics, University of Crete
Heraklion, Greece
- Jun 2018: On the existence of primitive completely normal bases of finite fields
1st Congress of Greek Mathematicians
Athens, Greece
- May 2018: Variations of the primitive normal basis theorem
Antalya Algebra Days XX
Sirince, Turkey
- Nov 2017: Prescribing coefficients of invariant irreducible polynomials
FENS, Sabanci University
Istanbul, Turkey
- Nov 2017: Prescribing coefficients of invariant irreducible polynomials
Department of Mathematics, Bogazici University
Istanbul, Turkey
- Jun 2017: On a conjecture of Morgan and Mullen
13th International Conference on Finite Fields and their Applications (Fq13)
Gaeta, Italy
- May 2017: Prescribing coefficients of invariant irreducible polynomials
Antalya Algebra Days XIX
Sirince, Turkey
- May 2017: On a Conjecture of Morgan and Mullen
Department of Mathematics, Mimar Sinan Fine Arts University
Istanbul, Turkey
- Apr 2017: On a Conjecture of Morgan and Mullen
Department of Mathematics, Bilkent University
Ankara, Turkey
- Oct 2016: Details of the proof of the Hansen-Mullen conjecture for self-reciprocal polynomials
FENS, Sabanci University
Istanbul, Turkey
- Oct 2016: The Hansen-Mullen Conjecture
FENS, Sabanci University
Istanbul, Turkey
- Feb 2016: Polynomials with Special Properties over Finite Fields
LabSEC, Federal University of Santa Catarina
Florianopolis, Brazil
- Jul 2013: Normal Bases and Primitive Elements over Finite Fields
11th International Conference on Finite Fields and their Applications (Fq11)
Magdeburg, Germany
- Sep 2012: An Extension of the Strong Primitive Normal Basis Theorem
RICAM-Workshop on Finite Fields and Their Applications: Character Sums and Polynomials
Strobl, Austria
- Jul 2011: On the Hansen-Mullen Conjecture for Self-Reciprocal Irreducible Polynomials
10th International Conference on Finite Fields and their Applications (Fq10)
Ghent, Belgium
Teaching
Faculty Member (2021-today)
Department of Mathematics, University of Thessaly, Greece. I have taught the following courses of the department:
- Algebra
Spring 2025-26, Spring 2024-25, Spring 2022-23, Spring 2021-22, Spring 2020-21
- Algebraic Coding Theory
Spring 2025-26
- Operations Research
Fall 2025-26, Fall 2024-25, Fall 2023-24, Fall 2021-22
- Introduction to Number Theory
Spring 2023-24, Spring 2022-23, Spring 2021-22
- Group Theory
Fall 2023-24
- Linear Algebra II
Fall 2023-24, Fall 2021-22
- Ring and Module Theory
Fall 2022-23
Adjunct Faculty Member (2018-2021)
Department of Mathematics and Applied Mathematics, University of Crete, Greece. I have taught the following courses of the department:
- Introduction to Linear Algebra
Fall 2020-21
- Discrete Mathematics
Fall 2020-21, Spring 2018-19
- Number Theory
Spring 2019-20
- Applied Algebra
Fall 2019-20, Fall 2018-19
- Coding Theory
Fall 2019-20
- Analytic Geometry and Complex Numbers
Fall 2018-19
Scientific Collaborator (2019-2020)
Higher School of Tourism Education of Crete (ASTEK), Greece. I have taught the following courses of the school:
- Business Statistics
Spring 2019-20
- Financial Mathematics
Fall 2019-20
Teaching Assistant (2006-2015)
Department of Mathematics and Applied Mathematics, University of Crete, Greece. During my PhD and MSc studies, I served as a Teaching Assistant at the following courses of the department:
- Geometry and Linear Algebra
Fall 2014-15
- Foundations of Mathematics
Fall 2013-14
- General Mathematics II (at the Dept. of Materials Science and Engineering)
Spring 2012-13
- Problem Laboratory
Fall 2012-13
- Linear Algebra II
Spring 2011-12
- Algebra
Fall 2011-12, Spring 2007-08, Spring 2006-07