Menu   Lect. dr. Oana Constantinescu


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  • Reasercher ID profile



    • Accepted papers


        Published papers


      • Generalized Helmholtz conditions for Lagrangian systems with non-conservative forces, coauthor Ioan Bucataru, Mathematical Physics Analysis and Geometry 12/2015; 18(1):Article:25, 24 pages. DOI:10.1007/s11040-015-9196-3
      • Aditional material




      • Papers published in proceedings


        • Myller configurations M(C,x,Tm) in Finsler spaces Fn=(M,F), Ann. Of Univ. of Agricultural Sciences and Veterinary Medecine “Ion Ionescu de la Brad” of Iasi, Tom TXLVIII, V.2, 2005, pp 247-272;
        • Concurrence in a Myller configuration on TM, with Fn=(M,F) a Finsler space, Ann. Of Univ. of Agricultural Sciences and Veterinary Medecine “Ion Ionescu de la Brad” of Iasi, Tom XLVIX, vol. 2 (2006), pp. 125-136;



        Books

        • In colaboration with M. Crasmareanu and M. Munteanu: Elemente de geometrie superioara, MatrixRom, 2007
        • Ph. D. Thesis: "Lagrange spaces. Generalisations and applications", advisor Acad. Dr. Doc. Radu Miron, (July 15, 2005).



        Some topics of interest in differential geometry

        • Finsler, Lagrange, Hamilton geometry
        • Submanifolds in Lagrange and Hamilton spaces
        • Myller configurations in Finsler spaces
        • Lagrangian and Hamiltonian mechanical systems



        Member in the next grants of research

        • grants CNCSIS and CEEX of Prof. Dr. Mihai Anastasiei and Acad. Dr. Doc. Radu Miron in the years 2002-2005
        • grant CEEX (AT) nr. 31742/12.10. - Geometrie Finsler - Lagrange. Aplicatii la teoria sistemelor dinamice, director grant Conf. Ioan Bucataru
        • grant CEEX (AT) nr. 5883/18.09.2006 - Noi aspecte asupra structurilor cuaternionice pe varietati diferentiabile si subvarietatile acestora, director grant Lect. Marian Ioan Munteanu
        • grant CNCSIS (AT) GR 214/20.09.2006 - Aplicatii ale grupurilor in studiul unor structuri geometrice remarcabile pe varietati diferentiabile ; reprezentare si modelare geometrica, director grant Marian Ioan Munteanu
        • grant PNII- idei 398/28.09.2007 Invarianti geometrici si topologici asociati unor structuri geometrice pe varietati. Aplicatii, director grant Ioan Bucataru.



        Workshops - Seminars - Conferences

        • May 1995 - Sinaia, Romania, Spring school of Gauge Theory - Prof. Rivaseaux, Ecole Politechnique Paris
        • February 2000, Bacau, Romania, The 11th Seminar of Finsler and Lagrange Geometry
        • August 2001, Iasi, Romania, Finsler and Lagrange geometries and applications, international conference organized by the Institute of Mathematics 'O. Mayer', Iasi Branch of the Romanian Academy
        • August 2002, Iasi, Conference on Differential Geometry: Lagrange and Hamilton spaces, in honour of Acad. Radu Miron at his 75-th birthday
        • September 2003, Cluj-Napoca, Romania, The 6th international workshop on differential geometry and its applications and the 3th German-Romanian seminar on geometry (Hypersurfaces in Hamilton spaces)
        • August 2004, Timisoara, Romania, The 6th international conference of Tensor Society (Myller configurations M(C,x,T2n-1) on TM, with Fn=(M,F) a Finsler space)
        • September 2004, Brasov, Romania, The 13th National Seminar of Finsler and Lagrange Geometry (Concurrence in a Myller configuration)
        • May 2005, Iasi, Romania, The 4th annual Symposium on Mathematics applied in Biology&Biophysics, University of Agricultural Sciences and Veterinary Medecine 'Ion Ionescu de la Brad' (Myller configurations M(C,x,Tm) in Finsler spaces Fn=(M,F))
        • August 2005, Mangalia, Romania, The 5th conference of Balcan Society of Geometers (Myller configurations in Finsler spaces. Applications to the study of torse forming vector fields)
        • May 2006, Mulhouse, France, Socrates TS mobility at UHA (Universite de Haute Alsace, Departement de Mathematiques)`(Inroduction dans la geometrie des espaces de Finsler)
        • September 2006, Brasov, Romania, The 14th National Seminar of Finsler and Lagrange Geometry
        • May 2007, Balatonfoldvar, Hungary, Workshop of DFinsler geometry, Department of Mathematics, University of Debrecen
        • September 2007, Iasi, the international conference of Lagrange and Hamilton geometry, "Al.I.Cuza" University, Iasi (About Finsler surfaces)
        • July 2008, Brasov, Riemannian Geometry and its applications, University of Bucharest and University of Brasov (poster : Weyl substructures and compatible linear connections, coauthor Mircea Crasmareanu)
        • August 2008, Balatonfoldvar, Hungary, XXIIIrd International Workshop On Differential Geometric Methods In Theoretical Mechanics ( Weyl substructures and compatible linear connections)
        • May 2009, Debrecen, Hungary, Workshop of Finsler geometry, Department of Mathematics (Semi-basic 1-forms and the inverse problem for time-dependent SODE, coauthor Ioan Bucataru)
        • August 2009, Levico Terme (Trento), Italy, XXIV International Workshop On Differential Geometric Methods In Theoretical Mechanics (Semi-basic 1-forms and the inverse problem for time-dependent sode, coautor Ioan Bucataru)
        • Septembre 2009, Iasi, Workshop on Differential Geometry and its applications, organizor: IMAR Bucharest.
        • December 2009, Inverse Days, Luosto, Finland, Sodankylä Geophysical Observatory and Helsinki University of Technology (The inverse problem of the calculus of variations)
        • June 2010,Iasi, Alexandru Myller Mathematical Seminar Centennial Conference, "Al.I.Cuza" University, Faculty of Mathematics (Symmetries and first order variation for systems of ordinary differential equations, coauthors Ioan Bucataru, Matias Dahl)
        • August 2010, Levico Terme (Trento), Italy, XXV International Workshop On Differential Geometric Methods In Theoretical Mechanics
        • August 2011, Brasov, the VII-th International Conference: Finsler Extensions of Relativity Theory - FERT (A unifying geometric setting for systems of ordinary differential equations on manifolds)
        • December 2011, Helsinki, Finland, Finnish-Japanese-Korean workshop on inverse problems and the 17th Inverse Days of the Finnish Inverse Problems Society
        • September 2013, Iasi, The 13 th International Conference of Tensor Society (Formal integrability for the nonautonomous case of the inverse problem of the calculus of variations)
        • August 2014, Brasov, the X-th International Conference on Finsler Extensions of Relativity Theory - FERT
        • October 2014, Iasi, The National Conference of SSMR (Generalized Helmholtz conditions for Lagrangian systems with nonconservative forces)
        • July 2015, Iasi, The Eighth Congress of Romanian Mathematicians (Geometric inverse problems in Lagrangian Mechanics)

        Worshop of "Al.I.Cuza" University of Iasi:

        • "On a homogeneous Riemannian metric"
        • "Concurrence in Finsler spaces"
        • "Maximal Myller configurations in a Finsler space"
        • "Some remarks about the Wuenschmann invariant"
        • "Formal integrability for the nonautonomous case of the inverse problem of the calculus of variations"
        • Grupuri de simetrii

        The seminar of the department of geometry (SING):

        • The geometry of systems of higher order ordinary differential equations (2010)
        • Helmholtz type conditions for time dependent Lagrangians (2009)
        • Semi-basic 1-forms and the inverse problem for time-dependent SODEs(2009)