I am interested in the following areas of research:

 Commutative, Combinatorial and Computational Algebra
 Algebraic Combinatorics
 Algebraic Graph Theory
 Symbolic Computation
Google scholar profile, Mathscinet profile
Published papers:
 I.GarciaMarco, P.A.GarciaSanchez, I.Ojeda, Ch.Tatakis, Universally free numerical semigroups, arXiv:2303.06474, submitted.
 Ch.Tatakis, A.Thoma, M.Vladoiu, The Markov complexity of book graphs, Linear Algebra and its Applications 661, 5178, (2023).
 I.GarciaMarco, Ch.Tatakis, On robustness and related properties on toric ideals, Journal of Algebraic Combinatorics 57 (1), 2152, (2023).
 Ch.Tatakis, A.Thoma, On the relative size of toric bases, Journal of Algebra and its Applications 21 (4), 2250079, 18 pp., (2022).
 Y.C.Stamatiou, Ch.Tatakis, An algorithm for computing the universal Gröbner basis of graph ideals, Int. Journal of Computer Mathematics CST 4 (2), 6775, (2019).
 Ch.Tatakis, Generalized robust toric ideals, Journal of Pure and Applied Algebra 220 (1), 263277, (2016).
 Ch.Tatakis, A.Thoma, Graver degrees are not polynomially bounded by true circuit degrees, Journal of Pure and Applied Algebra 219, 26582665, (2015).
 Ch.Tatakis, A.Thoma, On complete intersection toric ideals of graphs, Journal of Algebraic Combinatorics 38 (2), 351370, (2013).
 E.Reyes, Ch.Tatakis, A.Thoma, Minimal generators of toric ideals of graphs, Advances in Applied Mathematics 48 (1), 6478, (2012).
 Ch.Tatakis, A.Thoma, On the universal Gröbner basis of toric ideals of graphs, Journal of Combinatorial Theory Series A 118, 15401548, (2011).
My collaborators:

 Ignacio GarciaMarco, University of La Laguna, Facultad de Ciencias, Departamento de Matematicas, Estadistica e I.O., Tenerife/Spain.
 Pedro A. GarciaSanchez, University of Granada, Facultad de Ciencias, Departamento de Algebra, Granada/Spain.
 Ignacio Ojeda, University of Extremadura, Facultad de Ciencias, Departamento de Matematicas, Badajod/Spain.
 Enrique Reyes, University of Mexico City, Department of Mathematics, Mexico city/Mexico.
 Yannis Stamatiou, University of Patras, Department of Business Administration, Computer Technology Institute and Press  "Diophantus", Patra/Greece
 Apostolos Thoma, University of Ioannina, Department of Mathematics, Ioannina/Greece.
 Marius Vladoiu, University of Bucharest, Faculty of Mathematics and Computer Science, Bucharest/Romania.
Erdos number: 3 (via: P. Erdos <> S. Janson <> Y.C. Stamatiou <> Ch. Tatakis)