Free Access
Issue
ESAIM: COCV
Volume 18, Number 2, April-June 2012
Page(s) 501 - 519
DOI https://doi.org/10.1051/cocv/2011104
Published online 22 July 2011
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  4. J.V. Elyseeva, The comparative index and the number of focal points for conjoined bases of symplectic difference systems in Discrete Dynamics and Difference Equations, in Proceedings of the Twelfth International Conference on Difference Equations and Applications, Lisbon, 2007, edited by S. Elaydi, H. Oliveira, J.M. Ferreira and J.F. Alves. World Scientific Publishing Co., London (2010) 231–238.
  5. R. Hilscher and V. Zeidan, Riccati equations for abnormal time scale quadratic functionals. J. Differ. Equ. 244 (2008) 1410–1447. [CrossRef]
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  10. W. Kratz, R. Šimon Hilscher, and V. Zeidan, Eigenvalue and oscillation theorems for time scale symplectic systems. Int. J. Dyn. Syst. Differ. Equ. 3 (2011) 84–131.
  11. W.T. Reid, Ordinary Differential Equations. Wiley, New York (1971).
  12. W.T. Reid, Sturmian Theory for Ordinary Differential Equations. Springer-Verlag, New York-Berlin-Heidelberg (1980).
  13. R. Šimon Hilscher, and V. Zeidan, Picone type identities and definiteness of quadratic functionals on time scales. Appl. Math. Comput. 215 (2009) 2425–2437. [CrossRef] [MathSciNet]
  14. M. Wahrheit, Eigenwertprobleme und Oszillation linearer Hamiltonischer Systeme [Eigenvalue Problems and Oscillation of Linear Hamiltonian Systems]. Ph.D. thesis, University of Ulm, Germany (2006).
  15. M. Wahrheit, Eigenvalue problems and oscillation of linear Hamiltonian systems. Int. J. Difference Equ. 2 (2007) 221–244.

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