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## Search the dblp DataBase
Donal O'Regan:
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## Publications of Author- Ravi P. Agarwal, Said R. Grace, Donal O'Regan
**Semipositone higher-order differential equations.**[Citation Graph (0, 0)][DBLP] Appl. Math. Lett., 2004, v:17, n:2, pp:201-207 [Journal] - Ravi P. Agarwal, Donal O'Regan
**Fixed-point theorems for multivalued maps with closed values on complete gauge spaces.**[Citation Graph (0, 0)][DBLP] Appl. Math. Lett., 2001, v:14, n:7, pp:831-836 [Journal] - Ravi P. Agarwal, Donal O'Regan
**Variational inequalities, coincidence theory, and minimax inequalities.**[Citation Graph (0, 0)][DBLP] Appl. Math. Lett., 2001, v:14, n:8, pp:989-996 [Journal] - Ravi P. Agarwal, Donal O'Regan
**Countably P-Concentrative Pairs and the coincidence index.**[Citation Graph (0, 0)][DBLP] Appl. Math. Lett., 2002, v:15, n:4, pp:439-444 [Journal] - Ravi P. Agarwal, Donal O'Regan
**Fixed-point theorems for**[Citation Graph (0, 0)][DBLP]*S*-KKM maps. Appl. Math. Lett., 2003, v:16, n:8, pp:1257-1264 [Journal] - Ravi P. Agarwal, Donal O'Regan
**A note on the topological transversality theorem for acyclic maps.**[Citation Graph (0, 0)][DBLP] Appl. Math. Lett., 2005, v:18, n:1, pp:17-22 [Journal] - Ravi P. Agarwal, Donal O'Regan
**Homotopy and normalization properties for admissible maps.**[Citation Graph (0, 0)][DBLP] Appl. Math. Lett., 2005, v:18, n:1, pp:33-40 [Journal] - Ravi P. Agarwal, Donal O'Regan
**Leray-Schauder and Krasnoselskii results for multivalued maps defined on pseudo-open subsets of a Fréchet space.**[Citation Graph (0, 0)][DBLP] Appl. Math. Lett., 2006, v:19, n:12, pp:1327-1334 [Journal] - Yu Qing Chen, Yeol Je Cho, Donal O'Regan
**On perturbations of accretive mappings.**[Citation Graph (0, 0)][DBLP] Appl. Math. Lett., 2005, v:18, n:7, pp:775-781 [Journal] - Ravi P. Agarwal, Donal O'Regan
**An index theory for countably**[Citation Graph (0, 0)][DBLP]*P*-concentrative*J*maps. Appl. Math. Lett., 2003, v:16, n:8, pp:1265-1271 [Journal] - Donal O'Regan
**Leray-Schauder results for inward acyclic and approximable maps defined on Fréchet spaces.**[Citation Graph (0, 0)][DBLP] Appl. Math. Lett., 2006, v:19, n:9, pp:976-982 [Journal] - Ravi P. Agarwal, Donal O'Regan, V. Lakshmikantham
**Viability theory and fuzzy differential equations.**[Citation Graph (0, 0)][DBLP] Fuzzy Sets and Systems, 2005, v:151, n:3, pp:563-580 [Journal] - Marlène Frigon, Donal O'Regan
**Fuzzy contractive maps and fuzzy fixed points.**[Citation Graph (0, 0)][DBLP] Fuzzy Sets and Systems, 2002, v:129, n:1, pp:39-45 [Journal] - Daqing Jiang, Wenjie Zuo, Donal O'Regan, Ravi P. Agarwal
**Optimal existence conditions for second order periodic solutions of delay differential equations with upper and lower solutions in the reverse order.**[Citation Graph (0, 0)][DBLP] Int. J. Comput. Math., 2004, v:81, n:6, pp:707-717 [Journal] - H. Adibi, Yeol Je Cho, Donal O'Regan, R. Saadati
**Common fixed point theorems in S-fuzzy metric spaces.**[Citation Graph (0, 0)][DBLP] Applied Mathematics and Computation, 2006, v:182, n:1, pp:820-828 [Journal] **Nonlinear integral equations singular in the dependent variable.**[Citation Graph (, )][DBLP]**Second order initial value problems of Lane-Emden type.**[Citation Graph (, )][DBLP]**Degree theory for monotone type mappings in non-reflexive Banach spaces.**[Citation Graph (, )][DBLP]**A selection of oscillation criteria for second-order differential inclusions.**[Citation Graph (, )][DBLP]**New kinds of generalized variational-like inequality problems in topological vector spaces.**[Citation Graph (, )][DBLP]**Higher order nonlinear degenerate differential operator equations.**[Citation Graph (, )][DBLP]**A note on the degree for maximal monotone mappings in finite dimensional spaces.**[Citation Graph (, )][DBLP]**Anti-periodic solutions for evolution equations associated with monotone type mappings.**[Citation Graph (, )][DBLP]**Bounds for analytic solutions to integral equations in the complex domain.**[Citation Graph (, )][DBLP]
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