Personal data
Date and place of birth: July 6, 1975, Timisoara, Romania
Romanian nationality
Education
PhD: “Babes-Bolyai” University, Romania, 2012.
MS: “Vasile Alecsandri” University, Romania, 2011
MS: “Vasile Alecsandri” University, Romania, 2002
BD: “Vasile Alecsandri” University, Romania, 1997
Professional history
2000-present: Professor “Vasile Alecsandri” National College, Bacau, Romania
1999-2000: Professor “LPS” College, Bacau, Romania
1998-1999: Professor “Grigore Antipa” College, Bacau, Romania
1997-1998: Professor “Henri Coanda” College, Bacau, Romania
Current interests
Euclidean Geometry and Applications, Hyperbolic Geometry, Elementary Mathematics
Grants, fellowship and awards:
2010: DAAD – Center of Excellence for Applications of Mathematics in South – East Europe, Hyperbolic Geometry and Arithmetic, 3-10 October, University of Sarajevo, Bosnia
Visiting institutions
University of Sarajevo, Bosnia, 2010
Selected publications
Dorin Andrica, Cătălin Barbu – A Geometric Proof of Blundon’s Inequalities – Mathematical Inequalities & Applications, Volume 15, Number 2 (2012), 361–370. Zbl pre06037642
Cătălin Barbu, Laurian Pişcoran – Some hyperbolic concurrency results in the Poincare disc – Carpathian Journal of Mathematics, Vol. 28, No.1/2012, 9 – 15.
Cătălin Barbu, Laurian Pişcoran – Andrica-Iwata’s Inequality in hyperbolic triangle – Mathematical Inequalities & Applications, Volume 12, Number 3 (2012), 631–637.
Cătălin Barbu, Laurian Pişcoran – The orthopole theorem in the Poincaré Disc Model of Hyperbolic Geometry, Sapientia, Vol. 4/2012, 20-25.
Cătălin Barbu – Van Aubel’s Theorem in the Einstein Relativistic Velocity Model of Hyperbolic Geometry – Progress in Physics, Vol. 1, October 2012, 30-32.
Cătălin Barbu, Ion Patrascu – Some Properties of the Newton-Gauss Line – Forum Geometricorum, Vol 12 (2012), 149-152. Zbl pre06035511
Nicuşor Minculete, Cătălin Barbu, Gheorghe Szollosy – About the Japaneze Theorem – Crux Mathematicorum, Vol. 38, No. 5, May 2012, 188-193.
Laurian Pişcoran, Cătălin Barbu, A new hyperbolic metric – Differential Geometry – Dynamical Systems, Balkan Society of Geometers, Geometry Balkan Press, Vol.15, 2013, 70-77.
Laurian Pişcoran, Cătălin Barbu, About a class of rational TC-Bezier curves with two shape parameters, Studia Universitatis Babeş – Bolyai Mathematica, Vol. 58, No. 4, 523-528, 2013.
Cătălin Barbu, Laurian Pişcoran – Jordan type inequalities using monotony of functions – Journal of Mathematical Inequalities, Vol. 8, No. 1 (2014), 83-89.
Laurian Pişcoran, Cătălin Barbu, Remarks on a new metric in the unity disc of the complex plane – Carpathian Journal of Mathematics, Vol. 30 (2014), No. 2, 239 – 244.
Emil Stoica, Nicusor Minculete, Catalin Barbu – New aspects of Ionescu-Weitzenbock’s inequality – Balkan Journal of Geometry and Its Applications, Vol. 21 (2) 2016, 95-101.
Nicusor Minculete, Catalin Barbu – Inradii and Diagonals – 11714, American Mathematical Monthly, Vol. 122 (6) 2016, 607-608.
Dorin Andrica, Cătălin Barbu, Laurian Pişcoran – The geometric proof to a sharp version of Blundon’s inequalities – Journal of Mathematical Inequalities, Volume 10, Number 4 (2016), 1137–1143.
Dorin Andrica, Cătălin Barbu, Laurian Pişcoran – The geometry of Blundon’s configuration – Journal of Mathematical Inequalities, Volume 13, Number 4 (2019), 2391.
Laurian Pişcoran, Catalin Barbu and B. Najaf – On the conformal change of a special class of (α, β)-metrics – Balkan Journal of Geometry and Its Applications, Vol. 25 (1) 2020, 104-116.
Laurian Pişcoran, Najafi Behzad, Catalin Barbu, Tabatabaeifar Tayebeh – The deformation of an (α, β)- metric, International Electronic Journal of Geometry, Vol 14, no. 1, 167-173, 2021.
Laurian Pişcoran, Akram Ali, Catalin Barbu, Ali Alkhaldi – The α-Hessian quotient for Riemannian metrics, Axioms, Vol. 13, No. 4, 2021.
Laurian Pişcoran, Catalin Barbu – Some aspects on a special type of (α, β)-metric, International Electronic Journal of Geometry, Vol. 16, no1, 295-303, 2023.
Other Professional Activities
Editor-in-Chief: International Journal of Geometry, „Gheorghe Ţiţeica” Magazine
Member in Editorial Board: International Journal of Classical and Modern Geometries, Symposion Mathematicae, Global Journal of advance research on classical and modern geometries.
Reviewer: Mathematical Reviews (USA), Zentralblatt MATH (Germany), Journal of Mathematics Research (Canada).
Member of ISJ Bacău, SSMR, International Association of Paradoxism –New Mexico
Coordinator at 59 th INTERNATIONAL MATHEMATICAL OLYMPIAD, Cluj Napoca, Romania, 2018.
Coordinator of the National Contest of Geometry „Gheorghe Ţiţeica”
Coordinator of the National Symposium of Geometry „Gheorghe Ţiţeica”
Co-organizer of the „The XII^th Annual Conference of the Romanian Mathematical Society” – Bacău, 2008
Co-organizer of the International Contest „Cu Europa…La Joacă-Euroşcolarul” – Bacău, 2011
Referees
Dorin Andrica: Babes-Bolyai University, Romania
Florentin Smarandache: University of New Mexico, USA
Marcelina Cristina Mocanu: Vasile Alecsandri University of Bacau, Romania