Articles in Scholarly Journals [Incomplete List]

1. Global branches of periodic solutions for forced delay differential equations on compact manifolds
   Journal of Differential Equations, vol. 233, no. 2, pp. 404–416, 2007
2. A degree theory for locally compact perturbations of Fredholm maps in Banach spaces
   Abstract and Applied Analysis, vol. 2006, Article ID 64764, 20 pages, 2006
3. A degree theory for a class of perturbed Fredholm maps II
   Fixed Point Theory and Applications, vol. 2006, Article ID 27154, 20 pages, 2006
4. A degree theory for a class of perturbed Fredholm maps
   Fixed Point Theory and Applications, vol. 2005, no. 2, pp. 185–206, 2005
5. On the chaotic behavior of the satellite hyperion
   Journal of Difference Equations and Applications, vol. 11, no. 7, pp. 635–643, 2005
6. On the uniqueness of the fixed point index on differentiable manifolds
   Fixed Point Theory and Applications, vol. 2004, no. 4, pp. 251–259, 2004
7. On the product formula for the oriented degree for Fredholm maps of index zero between Banach manifolds
   Nonlinear Analysis, vol. 48, no. 6, pp. 853–867, 2002
8. Set-Valued Analysis, vol. 9, no. 1/2, pp. 67–73, 2001
9. Forced oscillations on manifolds and multiplicity results for periodically perturbed autonomous systems
   Journal of Computational and Applied Mathematics, vol. 113, no. 1-2, pp. 241–254, 2000
10. Branches of Forced Oscillations for Periodically Perturbed Second Order Autonomous ODEs on Manifolds
    Journal of Differential Equations, vol. 154, no. 1, pp. 96–106, 1999
11. Global bifurcation of fixed points and the Poincaré translation operator on manifolds
    Annali di Matematica Pura ed Applicata, vol. 173, no. 1, pp. 313–331, 1997
12. Global solution branches for semilinear equations in r
    Nonlinear Analysis, vol. 28, no. 9, pp. 1521–1532, 1997
13. On the set of harmonic solutions of periodically perturbed autonomous differential equations on manifolds
    Nonlinear Analysis, vol. 29, no. 8, pp. 963–970, 1997
14. A Multidimensional Version of Rolle's Theorem
    The American Mathematical Monthly, vol. 102, no. 3, p. 243, 1995
15. On the Mean Value Theorem, Inequality, and Inclusion
    The American Mathematical Monthly, vol. 98, no. 9, p. 840, 1991
16. On continuity and compactness of some nonlinear operators associated with differential equations in noncompact intervals
    Nonlinear Analysis, vol. 9, no. 2, pp. 171–180, 1985
17. Linear controllability by piecewise constant controls with assigned switching times
    Journal of Optimization Theory and Applications, vol. 45, no. 2, pp. 219–229, 1985
18. Topological methods for the global controllability of nonlinear systems
    Journal of Optimization Theory and Applications, vol. 45, no. 2, pp. 231–256, 1985
19. Co-bifurcating Branches of solutions for nonlinear eigenvalue problems in Banach spaces
    Annali di Matematica Pura ed Applicata, vol. 135, no. 1, pp. 119–131, 1983
20. Unbounded nontrivial branches of eigenfunctions for nonlinear equations
    Nonlinear Analysis, vol. 6, no. 11, pp. 1267–1270, 1982
21. An elementary approach to boundary value problems at resonance
    Nonlinear Analysis, vol. 4, no. 6, pp. 1081–1089, 1980
22. On the solvability of nonlinear operator equations in normed spaces
    Annali di Matematica Pura ed Applicata, vol. 124, no. 1, pp. 321–343, 1980
23. Contributions to the spectral theory for nonlinear operators in Banach spaces
    Annali di Matematica Pura ed Applicata, Series 4, vol. 118, no. 1, pp. 229–294, 1978
24. Spectrum for nonlinear maps and bifurcation in the non differentiable case
    Annali di Matematica Pura ed Applicata, Series 4, vol. 113, no. 1, pp. 265–285, 1977
25. On surjectivity for nonlinear maps in banach spaces
    Annali di Matematica Pura ed Applicata, Series 4, vol. 112, no. 1, pp. 205–216, 1977
26. Some fixed-points theorems for multi-valued mappings in topological vector spaces
    Annali di Matematica Pura ed Applicata, Series 4, vol. 92, no. 1, pp. 169–175, 1972
27. On minimum problems for families of functionals
    Annali di Matematica Pura ed Applicata, Series 4, vol. 86, no. 1, pp. 181–187, 1970
28. A characterization of well-posed minimum problems in a complete metric space
    Journal of Optimization Theory and Applications, vol. 5, no. 6, pp. 452–461, 1970
29. About well-posed optimization problems for functionals in metric spaces
    Journal of Optimization Theory and Applications, vol. 5, no. 3, pp. 225–229, 1970
30. On the regularization of a nonlinear ill-posed problem in Banach spaces
    Journal of Optimization Theory and Applications, vol. 4, no. 3, pp. 206–209, 1969