| 2002 | Zhaoli Liu, J.X. Sun: Four versus two solutions of semilinear elliptic boundary value problems. In: Calculus of Variations and Partial Differential Equations, 2002, 319-327 |
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| 2002 | Zhaoli Liu: Multiplicity of solutions of semilinear elliptic boundary value problems with jumping nonlinearities at zero. In: Nonlinear Analysis, Theory, Method and Application, 2002, 1051-1063 |
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| 2002 | S.J. Li, Zhaoli Liu: Perturbations from symmetric elliptic boundary value problems. In: Journal of Differential Equations, 2002, 271-280 |
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| 2002 | Y.Q. Li, Zhaoli Liu: Perturbations of symmetric eigenvalue problems. In: Applied Mathematics Letters, 2002, 903-906 |
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| 2002 | Zhaoli Liu: Positive solutions of a class of nonlinear elliptic eigenvalue problems . In: Mathematische Zeitschrift, 2002, 663-686 |
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| 2001 | Zhaoli Liu, X.M. Zhang: A class of two-point boundary value problems. In: Journal of Mathematical Analysis and Applications, 2001, 599-617 |
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| 2001 | Zhaoli Liu: Exact number of solutions of a class of two-point boundary value problems involving concave and convex nonlinearities. In: Nonlinear Analysis, Theory and Method Application, 2001, 181-197 |
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| 2001 | Zhaoli Liu, J.X. Sun: Invariant sets of descending flow in critical point theory with applications to nonlinear differential equations. In: Journal of Differential Equations, 2001, 257-299 |
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| 2001 | Zhaoli Liu, S.J. Li, Z.-Q. Wang: Positive solutions of elliptic boundary value problems without (P.S)type assumption. In: Indiana University Mathematical Journal, 2001, 1347-1369 |
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| 2001 | Zhaoli Liu, Y.Q. Li: Properties of positive solutions of a nonlinear eigenvalue problem. In: Zeitschrift für Angewandte Mathematic und Physik, 2001, 433-447 |
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| 2001 | Zhaoli Liu, Y.Q. Li: Solutions of an elliptic eigenvalue problem involving subcritical and critical exponents. In: Communication in Partial Differential Equations, 2001, 2227-2248 |
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