1999
- T. Naito, N. V. Minh and J. S. Shin: On a spectral criterion for almost periodicity of solutions of periodic evolution equations, E. J. Qualitative Theory of Diff. Equ., No. 1. (1999), pp. 1-28.
- M. Shiwang and Z. Wang: Periodic solutions of semilinear equations at resonance with a $2n$-dimensional kernel, E. J. Qualitative Theory of Diff. Equ., No. 2. (1999), pp. 1-13.
- V. Bayrak and M. Can: Nonexistense of global solutions of a quasilinear bi-hyperbolic equation with dynamical boundary conditions, E. J. Qualitative Theory of Diff. Equ., No. 3. (1999), pp. 1-10.
- M. A. Darwish Haggag: Hysteresis in Urysohn-Volterra systems, E. J. Qualitative Theory of Diff. Equ., No. 4. (1999), pp. 1-8.
- I. Kiguradze and N. Partsvania: On nonnegative solutions of nonlinear two-point boundary value problems for two-dimensional differential systems with advanced arguments, E. J. Qualitative Theory of Diff. Equ., No. 5. (1999), pp. 1-22.
- M. Kirane and N. Tartar: A memory type boundary stabilization of a mildly damped wave equation, E. J. Qualitative Theory of Diff. Equ., No. 6. (1999), pp. 1-7.
- B. J. Harris and F. Marzano: Eigenvalue approximations for linear periodic differential equations with a singularity, E. J. Qualitative Theory of Diff. Equ., No. 7. (1999), pp. 1-18.
- P. Korman: Exact multiplicity of positive solutions for a class of semilinear equations on a ball, E. J. Qualitative Theory of Diff. Equ., No. 8. (1999), pp. 1-15.
- M. R. Grossinho and P. Omari: Existence of stable periodic solutions of a semilinear parabolic problem under Hammerstein-type conditions, E. J. Qualitative Theory of Diff. Equ., No. 9. (1999), pp. 1-24.
- R. Hakl: On some boundary value problems for systems of linear functional differential equations, E. J. Qualitative Theory of Diff. Equ., No. 10. (1999), pp. 1-16.
- H. Gao and T. F. Ma: Global solutions for a nonlinear wave equation with the p-laplacian operator, E. J. Qualitative Theory of Diff. Equ., No. 11. (1999), pp. 1-13.
- C. J. Chyan and J. Henderson: Eigenvalue characterization for a class of boundary value problems, E. J. Qualitative Theory of Diff. Equ., No. 12. (1999), pp. 1-13.
- T. A. Burton and A. Somolinos: Asymptotic stability in differential equations with unbounded delay, E. J. Qualitative Theory of Diff. Equ., No. 13. (1999), pp. 1-19.