Conferences

    · N. Cotfas (in collaboration with Daniela Dragoman):
    Discrete Wigner function and finite Gaussians
    Bucharest University Faculty of Physics 2011 Meeting, Bucharest, June 20, 2014.

    · N. Cotfas (in collaboration with Daniela Dragoman, Jean-Pierre Gazeau and Apostol Vourdas):
    On a phase space approach to finite quantum systems
    The XXIX International Colloquium on Group-Theoretical Methods in Physics,
    20-24 August 2012, Tianjin (Nankai), China.

    · N. Cotfas (in collaboration with Daniela Dragoman, Jean-Pierre Gazeau and Apostol Vourdas):
    On a phase space approach to finite quantum systems
    Central European Workshop on Quantum Optics, 2 - 6 July 2012, Sinaia, Romania.

    · N. Cotfas: Finite-dimensional Hilbert space and frame quantization
    Bucharest University Faculty of Physics 2011 Meeting, Bucharest, June 17, 2011.

    · N. Cotfas: Explicitly solvable Schrodinger type equations
    University of Bucharest, Faculty of Physics, Bucharest, March 24, 2011.

    · N. Cotfas: Coverings with regular polygons obtained by projection,
    Quasicrystals. The Silver Jubilee, Tel Aviv, Israel, Oct. 14-19, 2007.

    · N. Cotfas: Permutation representations with application to quasicrystals and carbon nanotubes,
    17th Symposium on Condensed Matter Physics- SFKM 2007 , Vrsac, Serbia, Sept. 16-20, 2007.

    · N. Cotfas: Modified version of the strip projection method and applications,
    International Conference on Aperiodic Crystals , Zao, Miyagi, Japan, Sept. 17-22, 2006.

    · N. Cotfas: Group representations with application to quasicrystals and carbon nanotubes,
    26th International Colloquium on Group Theoretical Methods in Physics , New York, June 26-30, 2006.

    · N. Cotfas: Shape invariant hypergeometric type operators and applications,
    MASSEE International Congress on Mathematics MICOM-2006, Paphos, Cyprus, May 31- June 4, 2006.

    · N. Cotfas: Associated hypergeometric-type functions and coherent states,
    8th WSEAS International Conference on APPLIED MATHEMATICS,
    Puerto De La Cruz, Tenerife, Dec. 16-18, 2005.

    · N. Cotfas: Symmetries of hypergeometric type special functions,
    4th International Symposium "Quantum Theory and Symmetries" incorporating
    6th International Workshop "Lie Theory and Its Applications in Physics", Varna, August 15-21, 2005.

    · N. Cotfas: An alternate mathematical model for single-wall carbon nanotubes,
    6th International Conference on the Science and Application of Nanotubes, Goteborg, June 26-July 1, 2005.

    · N. Cotfas: On the self-similarities of the mathematical models used in quasicrystal physics,
    Second Conference on Self-Similarity and Applications, Toulouse, June 20-24, 2005.

    · N. Cotfas: Permutation representations defined by G-clusters with application to quasicrystal physics,
    Discrete Groups and Geometric Structures with Applications IV, Oostende, May 31-June 3, 2005.

    · N. Cotfas: Representations of the symmetry groups of carbon nanotubes and applications,
    Discrete Groups and Geometric Structures with Applications IV, Oostende, May 31-June 3, 2005.

    · N. Cotfas: On the strip projection method and symmetry properties of the window,
    9th International Conference on Quasicrystals ICQ9, Ames (Iowa-USA), May 22-26, 2005.

    · N. Cotfas: Quasiperiodic packings of icosahedral clusters obtained by projection,
    2th National Conference on Theoretical Physics, Constanta, August 26-29, 2004.

    · N. Cotfas: Quasiperiodic packings of icosahedral clusters obtained by projection,
    11th International Conference "Symmetry Methods in Physics", Prague, June 21-24, 2004.

    · N. Cotfas: Quasiperiodic packings of icosahedral clusters obtained by projection,
    Fourth European Congress of Mathematics, Stockholm, June 27-July 2, 2004.

    · N. Cotfas: Systems of orthogonal polynomials defined by hypergeometric type equations,
    Fourth European Congress of Mathematics, Stockholm, June 27-July 2, 2004.

    · N. Cotfas: Systems of orthogonal polynomials defined by hypergeometric type equations,
    International Workshop on Orthogonal Polynomials: Orthogonal Polynomials
    and Mathematical Physics
    , Leganes, July 5-8, 2004.

    · N. Cotfas: Representations of the icosahedral group with application to quasicrystals,
    International Conference on Aperiodic Crystals, Bello Horizonte (Brazil), Sept. 8-13, 2003.

    · N. Cotfas: Hypergeometric type functions in a supersymmetric approach,
    XIV International Congress on Mathematical Physics, Lisbon, July 28-August 2, 2003.

    · N. Cotfas: Raising and lowering operators in the theory of hypergeometric type equations,
    5th Congress of Romanian Mathematicians, Pitesti, June 22-28, 2003.

    · N. Cotfas: Special functions, raising and lowering operators,
    XXIV International Colloquium on Group Theoretical Methods in Physics , Paris, July 15-20, 2002.

    · N. Cotfas: A group-theoretic approach to quasicrystals,
    International Conference on Aperiodic Crystals, Nijmegen (Holland), July 2000.

    · N. Cotfas: Finite graphs associated with a cut-and-project set,
    DI-CRM Workshop on Mathematical Physics, Prague, June, 2000.

    · N. Cotfas: Self-similarities of model sets and their diffraction spectrum,
    7th International Conference on Quasicrystals, Stuttgart, Sept. 1999.

    · N. Cotfas and J._L. Verger-Gaugry: Models of quasicrystals defined by G-clusters and their self-similarities,
    Mathematics of Quasicrystals, Paris, Sept. 23-25, 1998.

    · N. Cotfas and J.-L. Verger-Gaugry: G-clusters and quasicrystals,
    International Conference on Aperiodic Crystals, Alpe d'Huez, August, 1997.

    · N. Cotfas: Cluster models of quasicrystals obtained by using n-dimensional permutation representations
    of finite groups associated wuth their orbits, Colloque Quasicristaux , Paris , June 5-7, 1996.

    · N. Cotfas: 4-Dimensional crystallography and the diamond structure,
    Quasicrystals International School Balatonfured , Hungary, May 13-20, 1995.

    · N. Cotfas: Une classe d'operateurs Oh7-invariants et applications dans la physique des semiconducteurs,
    Colloque franco-roumain de mathematiques purres et appliquees , Paris, May 1-8, 1994.

 

 

 

 

 

 

 

Last updated at: July 20, 2017.