Articles in Scholarly Journals [Incomplete List]

1. Strict Monotonicity of Eigenvalues and Unique Continuation
   Communications in Partial Differential Equations, vol. 17, no. 1, pp. 339–346, 2019
2. A minimax formula for principal eigenvalues and application to an antimaximum principle
   Calculus of Variations, vol. 21, no. 1, 2004
3. Antimaximum principle in : local versus global
   Journal of Differential Equations, vol. 196, no. 1, pp. 119–133, 2004
4. Local superlinearity and sublinearity for indefinite semilinear elliptic problems
   Journal of Functional Analysis, vol. 199, no. 2, pp. 452–467, 2003
5. The functional Fucik spectrum has empty interior
   Proceedings of the Royal Society of Edinburgh: Section A Mathematics, vol. 133, no. 01, p. 3, 2003
6. On a nonlinear eigenvalue problem in OrliczSobolev spaces
   Proceedings of the Royal Society of Edinburgh: Section A Mathematics, vol. 132, no. 04, p. 891, 2002
7. Asymmetric elliptic problems with indefinite weights
   Annales de l'Institut Henri Poincare (C) Non Linear Analysis, vol. 19, no. 5, pp. 581–616, 2002
8. On the antimaximum principle for the p-Laplacian with indefinite weight
   Nonlinear Analysis, vol. 51, no. 3, pp. 449–467, 2002
9. Sur certains problèmes elliptiques asymétriques avec poids indéfinis
   Comptes Rendus de l'Académie des Sciences - Series I - Mathematics, vol. 332, no. 3, pp. 215–218, 2001
10. A nodal domain property for the p-Laplacian
    Comptes Rendus de l'Académie des Sciences - Series I - Mathematics, vol. 330, no. 8, pp. 669–673, 2000
11. Nonresonance to the right of the first eigenvalue for the one-dimensional p-Laplacian1
    Nonlinear Analysis, vol. 38, no. 4, pp. 481–496, 1999
12. The Beginning of the Fucik Spectrum for the p-Laplacian
    Journal of Differential Equations, vol. 159, no. 1, pp. 212–238, 1999
13. Sur le Spectre de Fucik du -Laplacien
    Comptes Rendus de l'Académie des Sciences - Series I - Mathematics, vol. 326, no. 6, pp. 681–684, 1998
14. Spectre d'ordre supérieur et problèmes de non-résonance
    Comptes Rendus de l'Académie des Sciences - Series I - Mathematics, vol. 325, no. 1, pp. 33–36, 1997
15. On a Semilinear Elliptic Neumann Problem with Asymmetric Nonlinearities
    Transactions of the American Mathematical Society, vol. 347, no. 7, p. 2553, 1995
16. A note on a nonresonance condition for a quasilinear elliptic problem
    Nonlinear Analysis, vol. 22, no. 2, pp. 229–236, 1994
17. Non-ordered lower and upper solutions in semilinear elliptic problems
    Communications in Partial Differential Equations, vol. 19, no. 7, pp. 1163–1184, 1994
18. A Necessary and Sufficient Condition of Nonresonance for a Semilinear Neumann Problem
    Proceedings of the American Mathematical Society, vol. 114, no. 2, p. 433, 1992
19. A variational approach to nonresonance with respect to the Fucik spectrum
    Nonlinear Analysis, vol. 19, no. 5, pp. 487–500, 1992
20. Periodic solutions of a second order ordinary differential equation: A necessary and sufficient condition for nonresonance
    Journal of Differential Equations, vol. 94, no. 1, pp. 67–82, 1991
21. Nonresonance with respect to the Fuik spectrum for periodic solutions of second order ordinary differential equations
    Nonlinear Analysis, vol. 14, no. 12, pp. 1079–1104, 1990
22. Strongly nonlinear elliptic problems near resonance: a variational approach
    Communications in Partial Differential Equations, vol. 15, no. 8, pp. 1141–1159, 1990
23. Nonresonance below the first eigenvalue for a semilinear elliptic problem
    Mathematische Annalen, vol. 281, no. 4, pp. 589–610, 1988
24. Variational inequalities in Orlicz-Sobolev spaces
    Nonlinear Analysis, vol. 11, no. 3, pp. 379–392, 1987
25. On the principal eigenvalue of a second order linear elliptic problem
    Archive for Rational Mechanics and Analysis, vol. 89, no. 2, pp. 169–175, 1985
26. Convergence of nonlinear elliptic operators and application to a quasi-variational inequality
    Journal of Mathematical Analysis and Applications, vol. 92, no. 1, pp. 252–273, 1983
27. Nonlinear perturbations of a linear elliptic problem near its first eigenvalue
    Journal of Differential Equations, vol. 30, no. 1, pp. 1–19, 1978
28. On the Extensions to the Bidual of a Maximal Monotone Operator
    Proceedings of the American Mathematical Society, vol. 62, no. 1, p. 67, 1977
29. On a Convexity Property of the Range of a Maximal Monotone Operator
    Proceedings of the American Mathematical Society, vol. 55, no. 2, p. 359, 1976
30. Surjectivity results for pseudo-monotone mappings in complementary systems
    Journal of Mathematical Analysis and Applications, vol. 53, no. 3, pp. 484–494, 1976
31. Nonlinear Elliptic Boundary Value Problems for Equations With Rapidly (Or Slowly) Increasing Coefficients
    Transactions of the American Mathematical Society, vol. 190, p. 163, 1974
32. On the Range of a Coercive Maximal Monotone Operator in a Nonreflexive Banach Space
    Proceedings of the American Mathematical Society, vol. 35, no. 1, p. 88, 1972
33. Opérateurs monotones non linéaires dans les espaces de Banach non réflexifs
    Journal of Mathematical Analysis and Applications, vol. 34, no. 2, pp. 371–395, 1971
34. Existence of optimal controls for some nonlinear processes
    Journal of Optimization Theory and Applications, vol. 3, no. 2, pp. 89–97, 1969