Browsing Makaleler / Articles by Title

Now showing items 1-20 of 209

    • 2-Transitive Frobenius Q-Groups 

      Erkoç, Temha; Güzel, Erhan (2009)
      A Q -group is a finite group all of whose irreducible complex characters are rationally- valued. In this paper, we find all 2-transitive Frobenius Q -groups

    • 4. Boyut ve Kübizm 

      Güzel, Erhan (2012-09-28)

    • A Certain Class of Harmonic Mappings Related to Functions of Bounded Boundary Rotation 

      Polatoğlu, Yaşar; Yavuz Duman, Emel; Aydoğan, Melike (Eudoxus Press, Llc, 1424 Beaver Trail Drive, Cordova, Tn 38016 Usa, 2014-05)
      Let V(k) be the class of functions with bounded boundary rotation and let S-H be the class of sense-preserving harmonic mappings. In the present paper we investigate a certain class of harmonic mappings related to the ...

    • A certain class of starlike log-harmonic mappings 

      Aydoğan, Melike; Polatoğlu, Yaşar (Elsevier Science Bv, Po Box 211, 1000 Ae Amsterdam, Netherlands, 2014-11)
      In this paper we investigate some properties of log-harmonic starlike mappings. For this aim we use the subordination principle or Lindelof Principle (Lewandowski (1961) [71). (C) 2014 Elsevier B.V. All rights reserved.

    • A Characterization for Convex Functions of Complex Order b 

      Polatoğlu, Yaşar (İstanbul University Science Faculty, 1997)
      The main purpose of this note is tö give a new characterization for convex functions of complex order b. It should be noticed that by giving specific values to b we obtain new characterizations of important subclasses of ...

    • A combinatorial discussion on finite dimensional Leavitt path algebras 

      Koç, Ayten; Esin, Songül; Güloğlu, İsmail; Kanuni, Müge (Hacettepe Univ, Fac Sci, Hacettepe Univ, Fac Sci, Beytepe, Ankara 06800, Turkey, 2014)
      Any finite dimensional semisimple algebra A over a field K is isomorphic to a direct sum of finite dimensional full matrix rings over suitable division rings. We shall consider the direct sum of finite dimensional full ...

    • A new hybrid nonlinear congruential number generator based on higher functional power of logistic maps 

      Çeçen, Songül; Demirer, R. Murat; Bayrak, Coşkun (PERGAMON-ELSEVIER SCIENCE LTD, THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, ENGLAND, 2009-10-30)
      We propose a nonlinear congruential pseudorandom number generator consisting Of summation of higher order composition of random logistic maps under certain congruential mappings. We change both bifurcation parameters of ...

    • A new method for calculating fuel consumption and displacement of a ship in maritime transport 

      Mersin, Kadir; Alkan, Güler; Mısırlıoğlu, Remzi Tunç (Taylor & Francis As, Karl Johans Gate 5, No-0154 Oslo, Norway, 2017-12-11)
      Fuel consumption is the most important parameter which is effected by the petrol prices. Optimization of the sailing speed decreases the fuel cost because it is proportional to the sailing speed. In this study, the present ...

    • A Note On A Problem Of Abramovich, Aliprantis And Burkinshaw 

      Çağlar, Mert; Mısırlıoğlu, Remzi Tunç (Springer, Van Godewijckstraat 30, 3311 Gz Dordrecht, Netherlands, 2011-09)
      Let B and T be two positive operators on a Banach lattice such that B is compact-friendly and T is locally quasi-nilpotent. Introducing the concept of positive quasi-similarity, we prove that T has a non-trivial closed ...

    • A note on certain analytic functions 

      Nunokawa, M.; Owa, Shigeyoshi; Polatoğlu, Yaşar (International Short Joint Research Workshop, Study on Calculus Operators in Univalent Function Theory, 2007, Research Institute for Mathematical Sciences, Kyoto University (RIMS), Kyoto, Japan, 2007)

    • A numerical method for calculation of the equivalence volume in potentiometric titrations 

      Çağlar, Süleyman Hikmet; Bozdoğan, Abdürrezzak Emin; Çağal, Behiç (1988-02)

    • A representation of cyclically compact operators on Kaplansky-Hilbert modules 

      Gönüllü, Uğur (Springer Basel Ag, Picassoplatz 4, Basel, 4052, Switzerland, 2016-01)
      We give a representation of cyclically compact self-adjoint operators on Kaplansky-Hilbert modules and characterize the global eigenvalues of such operators by a sequence consisting of their global eigenvalues taken in the ...

    • A spectroscopic atlas of Deneb (A2 lae) lambda lambda 3826-5212 

      Albayrak, B.; Gulliver, A. E.; Adelman, S. J.; Aydin, C.; Koçer, Dursun (E D P SCIENCES, 7, AVE DU HOGGAR, PARC D ACTIVITES COURTABOEUF, BP 112, F-91944 LES ULIS CEDEXA, FRANCE, 2003-03)
      We present a spectroscopic atlas of Deneb (A2 Iae) obtained with the long camera of the 1.22-m telescope of the Dominion Astrophysical Observatory using Reticon and CCD detectors. Forlambdalambda3826-5212 the inverse ...

    • An investigation of the certain class of multivalent harmonic mappings 

      Polatoğlu, Yaşar; Özkan Uçar, Hatice Esra; Aydoğan, Seher Melike (2016)
      The main purpose of the present paper is to investigate some properties of the certain class of sense-preserving p-valent harmonic mappings in the open unit disc D = {z is an element of C parallel to z vertical bar < 1}.

    • An investigation on a new class of harmonic mappings 

      Yavuz Duman, Emel; Polatoğlu, Yaşar; Kahramaner, Yasemin (Springer International Publishing Ag, Gewerbestrasse 11, Cham, Ch-6330, Switzerland, 2013)
      In the present paper, we give an extension of the idea which was introduced by Sakaguchi (J. Math. Soc. Jpn. 11:72-75, 1959), and we give some applications of this extended idea for the investigation of the class of harmonic ...

    • An investigation on a subclass of p-valently starlike functions in the unit disc 

      Polatoğlu, Yaşar; Bolcal, A.; Şen, A.; Yavuz, Emel (SCIENTIFIC TECHNICAL RESEARCH COUNCIL TURKEY-TUBITAK, ATATURK BULVARI NO 221, KAVAKLIDERE, TR-06100 ANKARA, TURKEY, 2007)
      Let A(p) denote the class of functions of the form f(z) = z(p) +a(p+1)z(p+1)+a(p+2)z(p+2) +... which are regular and p-valent in the open unit disc D = {z : vertical bar z vertical bar < 1}. Let M-p(alpha) be the subclass ...

    • Analyzing the Chaotic Behaviour of the Harmonic Function of Henon-Heiles Potential 

      Bolcal, Ertuğrul Cem; Karakuş, Cahit; Polatoğlu, Yaşar (Springer-Verlag Berlin, Heidelberger Platz 3, D-14197 Berlin, Germany, 2012-05)
      In this work, the chaotic behaviour of Harmonic function of Henon-Heiles Hamiltonian system is computed and analyzed by using multi-dimensional Schwarzian derivative. Moreover, chaotic behaviour of the saddle points in ...

    • Application Of The Subordination Principle To The Harmonic Mappings Convex In One Direction With Shear Construction Method 

      Polatoğlu, Yaşar; Özkan, Hatice Esra; Yavuz Duman, Emel (Hindawi Publishing Corporation, 410 Park Avenue, 15Th Floor, #287 Pmb, New York, Ny 10022 Usa, 2010)
      Any harmonic function in the open unit disc D = {z vertical bar vertical bar z vertical bar < 1} can be written as a sum of an analytic and antianalytic functions f = h(z) + <(g(z))over bar>, where h(z) and g(z) are analytic ...

    • Application of the subordination principle to the multivalent harmonic mappings with shear construction method 

      Polatoğlu, Yaşar; Yavuz Duman, Emel; Özkan, H. Esra (2011-06)
      The harmonic function in the open unit disc D = (z is an element of C vertical bar z vertical bar < 1} can be written as a sum of an analytic and an anti-analytic function. f = h(z) + g(z), where h(z) and g(z) are analytic ...

    • Applications of Theories of Compelexity and Chaos to Gold Prices 

      Çağlar, Süleyman Hikmet (2018)
      Chaos theory is considered as a new subject in understanding non linear system’s dynamic behaviours. Chaos theorem is used in several fields such as mathematics, physics, chemistry as well as in finance and economics ...