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EMU I-REP

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  • Collective Creativity 
    Abubakar, Mohammed Abubakar; İlkan, Mustafa (KS Global Research, 2015-09-28)
  • Colliding EM Shock Waves in General Relativity 
    Halilsoy, Mustafa (Physical Review D, Amrican Physical Society (APS), 1988)
    we derive a new, exact solution for the Einstein-Maxwell equations that describes the collision (interaction) of two arbitrarily polarized electromagnetic shock waves. In the limit that the polarization angle vanishes, ...
  • Colliding EM Waves that Admit Separable Wave Equation 
    Halilsoy, Mustafa (General Relativity and Gravitation, Springer, 1994)
    We show that the massive wave equation is separable in two particular colliding Einstein-Maxwell waves space-times. The first is the type D metric of Chandrasekhar and Xanthopoulos whereas the second is the doubly ...
  • Colliding Impulsive Gravitational Waves 
    Yavuz, Nutku; Mustafa, Halilsoy (Physical Review Letters, American Physical Society (APS), 1977)
    We formulate the problem of colliding plane gravitational waves with two polarizations as the harmonic mappings of Riemannian manifolds and construct an exact solution of the vacuum Einstein field equations describing ...
  • Colliding Impulsive Waves in Succession 
    Mustafa, Halilsoy (Physical Review -Series d-, American Physical Society (APS), 1990)
    We formulate the initial-value problem for two colliding trains of impulsive gravitational waves. In the absence of a global, exact solution we show that in a region lying between the singularity u'+ U'= 1 and the wave ...
  • Colliding Plane Gravitational Waves 
    Halil, Mustafa (Halilsoy, Mustafa) (Physical Review D, American Physical Society (APS), 1979)
    New exact solutions of the vacuum Einstein field equations are constructed which describe the collision of plane gravitational waves. These solutions generalize those of Szekeres by relaxing the requirement of collinear ...
  • Colliding Superposed Waves in EM Theory 
    Halilsoy, Mustafa (Physical Review D, American Physical Society (APS), 1989)
    We reformulate the initial data on the characteristic surface for colliding waves in the Einstein- Maxwell theory. This approach takes into account the superposition principle for gravitational and electromagnetic waves. ...
  • Colliding wave solutions from five-dimensional black holes and black pp-branes 
    Halilsoy, Elif; Halilsoy, Mustafa; Ünver, Özlem (Journal of Mathematical Physics, American Institute of Physics (AIP), 2006)
    e consider both the five-dimensional Myers-Perry and Reissner-Nordstrom black holes (BHs) and black pp -branes in (4+p)(4+p) -dimensions. By employing the isometry with the colliding plane waves (CPWs) we generate ...
  • Colliding Wave Solutions in a Symmetric Non-Metric Theory 
    Gürtuğ, Özay; Halilsoy, Mustafa (Springer US, 2009)
    A method is given to generate the non-linear interaction (collision) of linearly polarized gravity coupled torsion waves in a non-metric theory. Explicit examples are given in which strong mutual focussing of gravitational ...
  • Colliding Wave Solutions in a Symmetric Non-metric Theory 
    Gürtuğ, Özay; Halilsoy, Mustafa (International Journal of Theoretical Physics, Springer, 2009)
    A method is given to generate the non-linear interaction (collision) of linearly polarized gravity coupled torsion waves in a non-metric theory. Explicit examples are given in which strong mutual focussing of gravitational ...
  • Collision of Electromagnetic Shock Waves Coupled with Axion Waves: An Example 
    Halilsoy, Mustafa; Sakallı, İzzet (Classical and Quantum Gravity, Institute of Physics (IOP) Publishing, 2003)
    We present an exact solution that describes collision of electromagnetic shock waves coupled with axion plane waves. The axion has a rather special coupling to the cross polarization term of the metric. The initial data ...
  • Color-Based Face Recognition with Different Color Spaces and Image Quality Assessment 
    Pazouki, Mohammad Mehdi (Eastern Mediterranean University (EMU) - Doğu Akdeniz Üniversitesi (DAÜ), 2020)
    Image quality is a critical issue for the recognition of faces because i.t reduces the risk of forging face recognition systems. The most relevant face spoofing attacks reported in previous studies follow o.ne of the ...
  • Combinatorial Optimization: Solution Methods of Traveling Salesman Problem 
    Demez, Hülya (Eastern Mediterranean University (EMU), 2013)
    ABSTRACT: Traveling Salesman Problem has been one of the most interesting and challenging problem in the literature. It is include a large area in combinatorial optimization problem. A variety of Exact and Heuristic ...
  • Comment On Colliding Plane Gravitational Waves 
    Mustafa, Halilsoy (Physics Letters, 1981)
    It is shown that a theorem proved on colliding plane gravitational waves is not correct.
  • Comment on 'Nonlinear dynamics of a position-dependent mass-driven Duffing-type oscillator' 
    Mustafa, Omar (IOP Publishing, 2013-09)
    Using a generalized coordinate along with a proper invertible coordinate transformation, we show that the Euler–Lagrange equation used by Bagchi et al (2013 J. Phys. A: Math. Theor. 46 032001) is in clear violation of ...
  • Comment on 'Position-dependent effective mass Dirac equations with PT-symmetric and non-PT-symmetric potentials 
    Mustafa, Omar; Mazharimousavi, Habib S. (IOP Publishing, 2007)
    Jia and Dutra (2006 J. Phys. A: Math. Gen. 39 11877) have considered the one-dimensional non-Hermitian complexified potentials with real spectra in the context of position-dependent mass in the Dirac equation. In their ...
  • Comment on "Static and spherically symmetric black holes in f(R) theories" 
    Mazharimousavi, S. Habib; Halilsoy, Mustafa (Physical Review D, American Physical Society (APS), 2012)
    We consider the interesting ‘‘near-horizon test’’ reported in S. E. P. Bergliaffa and Y. E. C. de O. Nunes,Phys. Rev. D 84, 084006 (2011) for any static, spherically symmetric black hole solution admitted in f(R)gravity. ...
  • Common Cycles in Commodity Prices 
    Uzuner, Gizem (Eastern Mediterranean University (EMU) - Doğu Akdeniz Üniversitesi (DAÜ), 2016-02)
    This study empirically investigates the short- and long-run co-movement among commodity prices using six commodity group price indices. The commodity group indices used in the study include foodstuffs, livestock and products, ...
  • Common Defects and Structural Problems in the Buildings of Northern Cyprus, their Reasons and Prevailing Applicable Solutions 
    Akilah, Mohammed (Eastern Mediterranean University (EMU) - Doğu Akdeniz Üniversitesi (DAÜ), 2017)
    In the recent years, building sector grows rapidly parallel to the human needs. Sometimes these quick productions cause several types of problems on the buildings. These problems occur in varying intensities depending on ...
  • A ‘common future’ in Cyprus? Public opinion in Cyprus on the Settlement Process 
    Canan Sokullu, Ebru S.; Sözen, Ahmet (2010-02-18)
    In this paper, we examine public opinion on the potentials of a ‘common future’ arguably promoted by “other community perceptions”, “national / cultural identity”, “top priority of national goals”, “index of Cypriotness”, ...