• English
    • Ελληνικά
  • English 
    • English
    • Ελληνικά
  • Login
Browsing by Subject 
  •   Home
  • Browsing by Subject
  •   Home
  • Browsing by Subject
JavaScript is disabled for your browser. Some features of this site may not work without it.

Browsing by Subject "Nonlinear equations"

  • 0-9
  • Α
  • Β
  • Γ
  • Δ
  • Ε
  • Ζ
  • Η
  • Θ
  • Ι
  • Κ
  • Λ
  • Μ
  • Ν
  • Ξ
  • Ο
  • Π
  • Ρ
  • Σ
  • Τ
  • Υ
  • Φ
  • Χ
  • Ψ
  • Ω
  • A
  • B
  • C
  • D
  • E
  • F
  • G
  • H
  • I
  • J
  • K
  • L
  • M
  • N
  • O
  • P
  • Q
  • R
  • S
  • T
  • U
  • V
  • W
  • X
  • Y
  • Z

Sort by:

Order:

Results:

Now showing items 1-20 of 30

  • title
  • submit date
  • accessioned date
  • ascending
  • descending
  • 5
  • 10
  • 20
  • 40
  • 60
  • 80
  • 100
    • Article  

      Algebraic solution of the Stein-Stein model for stochastic volatility 

      Sophocleous, Christodoulos; O'Hara, John G.; Leach, Peter G. L. (2011)
      We provide an algebraic approach to the solution of the Stein-Stein model for stochastic volatility which arises in the determination of the Radon-Nikodym density of the minimal entropy of the martingale measure. We extend ...

    • Article  

      Classification of potential symmetries of generalised inhomogeneous nonlinear diffusion equations 

      Sophocleous, Christodoulos (2003)
      We consider the class of generalised nonlinear diffusion equations f(x)ut = [g(x)unux]x which are of considerable interest in mathematical physics. We classify the nonlocal symmetries, which are known as potential symmetries, ...

    • Article  

      A deductive approach to the solution of the problem of optimal pairs trading from the viewpoint of stochastic control with time-dependent parameters 

      Charalambous, Kyriakos; Sophocleous, Christodoulos; O'Hara, John G.; Leach, Peter G. L. (2015)
      In a fairly recent paper (2008 American Control Conference, June 11-13, 1035-1039), the problem of dealing with trading in optimal pairs was treated from the viewpoint of stochastic control. The analysis of the subsequent ...

    • Article  

      Differential evolution based identification of automotive hydraulic engine mount model parameters 

      Kyprianou, Andreas; Giacomin, J.; Worden, K.; Heidrich, M.; Böcking, J. (2000)
      Hydraulic engine mounts are commonly used in an automotive applications, and numerical models exist for performing full-vehicle noise, vibration and harshness (NVH) studies by means of multibody simulation. The parameters ...

    • Article  

      Electronic structure of piezoelectric double-barrier InAs/InP/InAs/InP/InAs (111) nanowires 

      Zervos, Matthew; Feiner, L.-F. (2004)
      The numerical self-consistent solution of the Poisson-Schrodinger equations in cylindrical coordinates for calculating electronic states in the effective mass approximation was implemented. High accuracy and rapid convergence ...

    • Article  

      Exact solutions of a remarkable fin equation 

      Popovych, R. O.; Sophocleous, Christodoulos; Vaneeva, Olena O. (2008)
      A model 'remarkable' fin equation is singled out from a class of nonlinear (1 + 1)-dimensional fin equations. For this equation a number of exact solutions are constructed by means of using both the classical Lie algorithm ...

    • Article  

      Further transformation properties of generalised inhomogeneous nonlinear diffusion equations with variable coefficients 

      Sophocleous, Christodoulos (2005)
      We consider the variable coefficient inhomogeneous nonlinear diffusion equations of the form xput = [xqu nux]x. We present further transformation properties for this nonlinear class of equations that do not appear in the ...

    • Conference Object  

      Group analysis of a class of nonlinear Kolmogorov equations 

      Vaneeva, Olena O.; Karadzhov, Y.; Sophocleous, Christodoulos (Springer New York LLC, 2016)
      A class of (1+2)-dimensional diffusion-convection equations (nonlinear Kolmogorov equations) with time-dependent coefficients is studied with Lie symmetry point of view. The complete group classification is achieved using ...

    • Article  

      Group analysis of nonlinear fin equations 

      Vaneeva, Olena O.; Johnpillai, A. G.; Popovych, R. O.; Sophocleous, Christodoulos (2008)
      Group classification of a class of nonlinear fin equations is carried out exhaustively. Additional equivalence transformations and conditional equivalence groups are also found. These enable us to simplify the classification ...

    • Article  

      Hodograph-type transformations 

      Sophocleous, Christodoulos (2003)
      We consider second-order evolution equations of the form ut = F1(u,ux)uxx+F2(u,ux) and third order of the form ut = F1(u,ux)u xxx+F2(u,ux,uxx). For each of these equations we construct point transformations which relate ...

    • Article  

      Implicit-explicit BDF methods for the Kuramoto-Sivashinsky equation 

      Akrivis, Georgios; Smyrlis, Yiorgos-Sokratis (2004)
      We consider the periodic initial value problem for the Kuramoto-Sivashinsky (KS) equation. We approximate the solution by discretizing in time by implicit-explicit BDF schemes and in space by a pseudo-spectral method. We ...

    • Article  

      An inverse method to assign receptances by using classical vibration absorbers 

      Zhu, J.; Mottershead, J. E.; Kyprianou, Andreas (2009)
      The classical mass-spring absorber can be thought of as a very simple structural modification. In this paper the inverse problem of assigning receptances to a dynamic system by using one or more simple mass-spring absorbers ...

    • Conference Object  

      Least-Square estimation for nonlinear systems with applications to phase and envelope estimation in wireless fading channels 

      Socratous, Y.; Charalambous, Charalambos D.; Georghiades, C. N. (2008)
      This paper addresses the problem of nonlinear Least-Square estimation. A new approach is presented which employees a change of probability measure technique to derive recursive equations for conditional means of nonlinear ...

    • Article  

      Modelling and Simulation of Bolted Joints under Harmonic Excitation 

      Oldfield, M.; Ouyang, H.; Mottershead, J. E.; Kyprianou, Andreas (2003)
      Bolted metal joints under harmonic loading exhibit hysteretic behaviour. This is the major source of damping in frame structures with bolted joints, since the material damping of these structures is very small. In this ...

    • Conference Object  

      New finite-dimensional stochastic optimal control problems 

      Charalambous, Charalambos D.; Elliott, Robert J. (IEEE, 1997)
      This paper is concerned with partially observed stochastic optimal control problems. The states of the system are described by nonlinear controlled diffusion equations. The measurements are noisy linear combinations of the ...

    • Article  

      Numerical investigation of the nonlinear heat diffusion equation with high nonlinearity on the boundary 

      Christou, Marios Andreas; Sophocleous, Christodoulos; Christov, Christo I. (2008)
      A nonlinear heat diffusion problem is considered when the thermal conductivity and heat capacity are nonlinear functions of the temperature. At one of the boundaries a highly nonlinear condition is imposed involving both ...

    • Article  

      On the group classification of variable-coefficient nonlinear diffusion-convection equations 

      Ivanova, Nataliya M.; Sophocleous, Christodoulos (2006)
      We consider the variable coefficient diffusion-convection equation of the form f (x) ut = [g (x) D (u) ux]x + h (x) K (u) ux which has considerable interest in mathematical physics, biology and chemistry. We present a ...

    • Article  

      Optimal control of uncertain stochastic systems subject to total variation distance uncertainty 

      Rezaei, F.; Charalambous, Charalambos D.; Ahmed, N. U. (2012)
      This paper is concerned with optimization of uncertain stochastic systems, in which uncertainty is described by a total variation distance constraint between the measures induced by the uncertain systems and the measure ...

    • Article  

      Performance analysis for a changepoint problem 

      Hibey, J. L.; Charalambous, Charalambos D. (1999)
      Nonlinear stochastic differential equations are used to model a version of the changepoint problem. State estimates of the minimum mean-square-error-type are used in likelihood-ratio tests to detect the time of change. ...

    • Conference Object  

      Performance analysis for a changepoint problem 

      Hibey, Joseph L.; Charalambous, Charalambos D. (IEEE, 1997)
      Nonlinear stochastic differential equations are used to model a version of the changepoint problem. State estimates of the minimum-mean-square-error type are used in likelihood-ratio tests to detect the time of change. We ...

      Browse

      EverywhereCommunities & CollectionsBy Submission DateAuthorsTitlesSubjectsBy TypeBy DepartmentBy Faculty

      My Account

      Login
      Πνευματικά δικαιώματα ©  Βιβλιοθήκη Πανεπιστημίου Κύπρου
      Contact Us | Send Feedback
      Οδηγίες κατάθεσης διδακτορικής διατριβής
      Open Access
      ORCiD