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Homepage: http://math.ubbcluj.ro/~r.precup/ External Links: MGP · ResearchGate Documents Indexed: 180 Publications since 1980, including 5 Books Reviewing Activity: 319 Reviews all top 5 Co-Authors 90 single-authored 17 O’Regan, Donal 6 Agarwal, Ravi P. 6 Moussaoui, Toufik 5 Cucuianu, Andrei 5 Rodríguez-López, Jorge 5 Şerban, Marcel Adrian 5 Trif, Damian 5 Varga, Csaba György 4 Couchouron, Jean-François 4 Jebelean, Petru 3 Bolojan, Octavia 3 Budescu, Angela 3 Bunoiu, Renata 3 Cardinali, Tiziana 3 Infante, Gennaro 3 Novac, Adela Carmen 3 Rubbioni, Paola 2 Boucherif, Abdelkader 2 Buică, Adriana 2 Herlea, Diana-Raluca 2 Lois-Prados, Cristina 2 Muzsi, Dezideriu 2 Pucci, Patrizia 2 Rus, Ioan A. 2 Viorel, Adrian 1 Arghirescu, Smaranda 1 Benzenati, Lyna 1 Bolojan-Nica, Octavia 1 Boulaiki, Habiba 1 Budişan, Sorin 1 Cabada, Alberto 1 Chinnì, Antonia 1 Chis-Novac, Adela 1 Chiş, Adela 1 Di Bella, Beatrice 1 Djebali, Smail 1 Horvat Marc, Andrei 1 Kamenskiĭ, Mikhaĭl Igor’evich 1 Koumla, Sylvain 1 Lisei, Hannelore 1 Liu, Yansheng 1 Ma, Ruyun 1 Maciejewski, Mateusz 1 Manole, Mihaela 1 Mebarki, Karima 1 Meehan, Maria 1 Nica, Octavia-Maria 1 Parajdi, Lorand Gabriel 1 Petruşel, Adrian 1 Rodríguez-López, Rosana 1 Saavedra, Lorena 1 Sene, Abdou 1 Şerban, Margit 1 Tersian, Stepan Agop all top 5 Serials 15 Studia Universitatis Babeş-Bolyai. Mathematica 10 Mathématica – Revue d’Analyse Numérique et de Théorie de l’Approximation. L’Analyse Numérique et la Théorie de l’Approximation 8 Fixed Point Theory 8 Preprint. “Babeş-Bolyai” University. Faculty of Mathematics and Physics. Research Seminars 7 Journal of Mathematical Analysis and Applications 7 Nonlinear Analysis. Theory, Methods & Applications. Series A: Theory and Methods 7 Journal of Fixed Point Theory and Applications 7 Annals of the Tiberiu Popoviciu Seminar of Functional Equations, Approximation and Convexity 6 Dynamic Systems and Applications 5 Revue d’Analyse Numérique et de Théorie de l’Approximation 5 Topological Methods in Nonlinear Analysis 4 Applicable Analysis 4 Electronic Journal of Differential Equations (EJDE) 3 Mathematica 3 Seminar on Fixed Point Theory Cluj-Napoca 3 Mediterranean Journal of Mathematics 3 Nonlinear Analysis. Theory, Methods & Applications 2 Results in Mathematics 2 Zeitschrift für Analysis und ihre Anwendungen 2 Applied Mathematics Letters 2 Nonlinear Studies 2 Electronic Journal of Qualitative Theory of Differential Equations 2 Nonlinear Analysis. Real World Applications 2 Dynamics of Continuous, Discrete & Impulsive Systems. Series A. Mathematical Analysis 2 Carpathian Journal of Mathematics 2 Preprint. “Babeş-Bolyai” University. Faculty of Mathematics. Research Seminars 2 Advances in Nonlinear Analysis 1 Journal of Computational and Applied Mathematics 1 Journal of the London Mathematical Society. Second Series 1 Mathematica Slovaca 1 Numerical Functional Analysis and Optimization 1 Quaestiones Mathematicae 1 Libertas Mathematica 1 Mathematical and Computer Modelling 1 Differential and Integral Equations 1 Mathematica Bohemica 1 PU.M.A. Pure Mathematics and Applications 1 Turkish Journal of Mathematics 1 Analele Universităţii din Craiova. Seria Matematică Informatică 1 Discrete and Continuous Dynamical Systems 1 Communications in Applied Analysis 1 Positivity 1 Taiwanese Journal of Mathematics 1 Journal of Inequalities and Applications 1 Journal of Computational Analysis and Applications 1 JIPAM. Journal of Inequalities in Pure & Applied Mathematics 1 Journal of Nonlinear and Convex Analysis 1 Nonlinear Analysis. Modelling and Control 1 Nonlinear Functional Analysis and Applications 1 Dynamical Systems 1 Discrete and Continuous Dynamical Systems. Series B 1 Nonlinear Dynamics and Systems Theory 1 International Journal of Pure and Applied Mathematics 1 JMMA. Journal of Mathematical Modelling and Algorithms 1 Communications on Pure and Applied Analysis 1 Analysis and Applications (Singapore) 1 Fixed Point Theory and Applications 1 The Australian Journal of Mathematical Analysis and Applications 1 Cubo 1 Dynamics of Partial Differential Equations 1 Complex Variables and Elliptic Equations 1 Computational & Mathematical Methods in Medicine 1 International Journal of Biomathematics 1 Set-Valued and Variational Analysis 1 Journal of Applied Analysis and Computation 1 De Gruyter Textbook 1 De Gruyter Graduate all top 5 Fields 118 Operator theory (47-XX) 79 Ordinary differential equations (34-XX) 35 Partial differential equations (35-XX) 20 Global analysis, analysis on manifolds (58-XX) 19 Integral equations (45-XX) 18 General topology (54-XX) 13 Biology and other natural sciences (92-XX) 8 Real functions (26-XX) 8 Dynamical systems and ergodic theory (37-XX) 8 Numerical analysis (65-XX) 6 Approximations and expansions (41-XX) 6 Functional analysis (46-XX) 5 Calculus of variations and optimal control; optimization (49-XX) 3 Algebraic topology (55-XX) 2 Convex and discrete geometry (52-XX) 1 History and biography (01-XX) 1 Linear and multilinear algebra; matrix theory (15-XX) 1 Harmonic analysis on Euclidean spaces (42-XX) 1 Fluid mechanics (76-XX) 1 Systems theory; control (93-XX) Publications by Year all cited Publications top 5 cited Publications Citations contained in zbMATH Open 112 Publications have been cited 545 times in 316 Documents Cited by ▼ Year ▼ The role of matrices that are convergent to zero in the study of semilinear operator systems. Zbl 1165.65336Precup, Radu 46 2009 Methods in nonlinear integral equations. Zbl 1060.65136Precup, Radu 35 2002 Fixed point theorems for set-valued maps and existence principles for integral inclusions. Zbl 0956.47026O’Regan, Donal; Precup, Radu 28 2000 Theorems of Leray-Schauder type and applications. Zbl 1045.47002O’Regan, Donal; Precup, Radu 22 2001 Seminlinear evolution equations with nonlocal initial conditions. Zbl 1154.34027Boucherif, Abdelkader; Precup, Radu 19 2007 On the nonlocal initial value problem for first order differential equations. Zbl 1050.34001Boucherif, Abdelkader; Precup, Radu 19 2003 A vector version of Krasnosel’skiĭ’s fixed point theorem in cones and positive periodic solutions of nonlinear systems. Zbl 1134.47041Precup, Radu 17 2007 On the topological transversality principle. Zbl 0780.47048Precup, Radu 16 1993 Existence criteria for integral equations in Banach spaces. Zbl 0993.45011O’Regan, Donal; Precup, Radu 16 2001 Existence, localization and multiplicity results for positive radial solutions of semilinear elliptic systems. Zbl 1178.35162Precup, Radu 16 2009 Existence results for systems with coupled nonlocal initial conditions. Zbl 1288.34019Bolojan-Nica, Octavia; Infante, Gennaro; Precup, Radu 15 2014 Solvability of \(p, q\)-Laplacian systems with potential boundary conditions. Zbl 1189.34040Jebelean, Petru; Precup, Radu 10 2010 Moser-Harnack inequality, Krasnoselskii type fixed point theorems in cones and elliptic problems. Zbl 1282.35176Precup, Radu 10 2012 Compression-expansion fixed point theorem in two norms and applications. Zbl 1078.47017O’Regan, Donal; Precup, Radu 9 2005 On the nonlocal initial value problem for first order differential systems. Zbl 1274.34041Nica, Octavia; Precup, Radu 8 2011 On some fixed point theorems of Deimling. Zbl 0856.47034Precup, Radu 8 1994 A unified existence theory for evolution equations and systems under nonlocal conditions. Zbl 1331.34149Cardinali, Tiziana; Precup, Radu; Rubbioni, Paola 8 2015 Fourth-order \(p\)-Laplacian nonlinear systems via the vector version of Krasnosel’skiĭ’s fixed point theorem. Zbl 1193.47057Djebali, Smail; Moussaoui, Toufik; Precup, Radu 7 2009 A topological approach to the existence and multiplicity of positive solutions of \((p, q)\)-Laplacian systems. Zbl 1328.35043Infante, Gennaro; Maciejewski, Mateusz; Precup, Radu 7 2015 Nash-type equilibria and periodic solutions to nonvariational systems. Zbl 1300.47108Precup, Radu 7 2014 Existence principles for inclusions of Hammerstein type involving noncompact acyclic multivalued maps. Zbl 0991.47050Couchouron, Jean-François; Precup, Radu 7 2002 Multiple positive solutions of non-local initial value problems for first order differential systems. Zbl 1245.34026Precup, Radu; Trif, Damian 6 2012 Data dependence of fixed points for non-self generalized contractions. Zbl 1226.47056Chis-Novac, Adela; Precup, Radu; Rus, Ioan A. 6 2009 Generalized topological transversality and existence theorems. Zbl 0745.54018Precup, Radu 6 1991 Existence results for systems of nonlinear evolution equations. Zbl 1172.35438Precup, Radu; Viorel, Adrian 6 2008 Existence results for systems of nonlinear evolution inclusions. Zbl 1207.35202Precup, Radu; Viorel, Adrian 5 2010 The Leray-Schauder boundary condition in critical point theory. Zbl 1186.58012Precup, Radu 5 2009 Continuation theory for general contractions in gauge spaces. Zbl 1087.47050Chiş, Adela; Precup, Radu 5 2004 Abstract weak Harnack inequality, multiple fixed points and \(p\)-Laplace equations. Zbl 1277.47070Precup, Radu 5 2012 Discrete continuation method for boundary value problems on bounded sets in Banach spaces. Zbl 0939.34021Precup, Radu 5 2000 Existence, localization and multiplicity of positive solutions to \(\phi\)-Laplace equations and systems. Zbl 1357.34056Herlea, Diana-Raluca; Precup, Radu 5 2016 Positive solutions of semi-linear elliptic problems via Krasnoselskii type theorems in cones and Harnack’s inequality. Zbl 1366.35040Precup, Radu 5 2006 Positive solutions for discontinuous problems with applications to \(\phi \)-Laplacian equations. Zbl 1454.34031Precup, Radu; Rodríguez-López, Jorge 5 2018 Linear and semilinear partial differential equations. An introduction. Zbl 1263.35001Precup, Radu 4 2013 Two positive solutions of some singular boundary value problems. Zbl 1206.34045Precup, Radu 4 2010 Non-resonance and existence for systems of non-linear operator equations. Zbl 1160.47049Muzsi, Dezideriu; Precup, Radu 4 2008 Implicit first order differential systems with nonlocal conditions. Zbl 1324.34020Bolojan, Octavia; Precup, Radu 4 2014 On a bounded critical point theorem of Schechter. Zbl 1299.47143Precup, Radu 4 2013 Vectorial approach to coupled nonlinear Schrödinger systems under nonlocal Cauchy conditions. Zbl 1338.35403Bunoiu, Renata; Precup, Radu 4 2016 Multiple positive solutions to a fourth-order boundary-value problem. Zbl 1357.34054Cabada, Alberto; Precup, Radu; Saavedra, Lorena; Tersian, Stepan A. 4 2016 A hypothetical-mathematical model of acute myeloid leukaemia pathogenesis. Zbl 1202.92035Cucuianu, Andrei; Precup, Radu 4 2010 Some existence results for differential equations with both retarded and advanced arguments. Zbl 1084.34542Precup, Radu 4 2002 Fixed point theorems for decomposable multi-valued maps and applications. Zbl 1057.54032Precup, R. 4 2003 Positive solutions of functional-differential systems via the vector version of Krasnoselskii’s fixed point theorem in cones. Zbl 1265.34227Budisan, Sorin; Precup, Radu 3 2011 Critical point theorems in cones and multiple positive solutions of elliptic problems. Zbl 1257.47070Precup, Radu 3 2012 Two positive nontrivial solutions for a class of semilinear elliptic variational systems. Zbl 1200.35095Precup, Radu 3 2011 Positive solutions of the initial value problem for an integral equation modeling infectious disease. Zbl 0762.45003Precup, Radu 3 1991 Monotone technique to the initial values problem for a delay integral equation from biomathematics. Zbl 0865.47051Precup, Radu 3 1995 Location of nonnegative solutions for differential equations on finite and semi-infinite intervals. Zbl 1055.34027Agarwal, Ravi P.; Meehan, Maria; O’Regan, Donal; Precup, Radu 3 2003 On the Palais-Smale condition for Hammerstein integral equations in Hilbert spaces. Zbl 1042.47530Precup, Radu 3 2001 Nonnegative solutions of nonlinear integral equations in ordered Banach spaces. Zbl 1054.45009Horvat-Marc, Andrei; Precup, Radu 3 2004 Abstract generalized quasilinearization method for coincidences. Zbl 1020.65031Buică, Adriana; Precup, Radu 3 2002 Integrable solutions of Hammerstein integral inclusions in Banach spaces. Zbl 1022.45007O’Regan, Donal; Precup, Radu 3 2002 A three critical points result in a bounded domain of a Banach space and applications. Zbl 1413.47153Precup, Radu; Pucci, Patrizia; Varga, Csaba 3 2017 Multiplicity results for operator systems via fixed point index. Zbl 1407.34036Precup, Radu; Rodríguez-López, Jorge 3 2019 A Granas type approach to some continuation theorems and periodic boundary value problems with impulses. Zbl 0847.34028Precup, Radu 2 1995 Positive solutions of evolution operator equations. Zbl 1078.47059Precup, Radu 2 2005 Anti-periodic solutions for second order differential inclusions. Zbl 1073.45514Couchouron, Jean-Francois; Precup, Radu 2 2004 Existence theory for nonlinear operator equations of Hammerstein type in Banach spaces. Zbl 1086.47034O’Regan, Donal; Precup, Radu 2 2005 Asymptotic stability for a model of cell dynamics after allogeneic bone marrow transplantation. Zbl 1335.37060Precup, R.; Şerban, M-A.; Trif, D. 2 2013 Homotopy method for positive solutions of \(p\)-Laplace inclusions. Zbl 1168.35445Couchouron, Jean-François; Precup, Radu 2 2007 Domain invariance theorems for contractive type maps. Zbl 1148.47041Agarwal, Ravi P.; O’Regan, Donal; Precup, Radu 2 2007 Multiple periodic solutions with prescribed minimal period to second-order Hamiltonian systems. Zbl 1305.34062Precup, Radu 2 2014 Mathematical modeling of cell dynamics after allogeneic bone marrow transplantation. Zbl 1297.92043Precup, Radu; Arghirescu, Smaranda; Cucuianu, Andrei; Şerban, Margit 2 2012 Perov type results in gauge spaces and their applications to integral systems on semi-axis. Zbl 1349.54122Novac, Adela; Precup, Radu 2 2014 Positive solutions for \(\phi\)-Laplace equations with discontinuous state-dependent forcing terms. Zbl 1420.34050Precup, Radu; Rodríguez-López, Jorge 2 2019 Boundary value problems arising in the percolation of water from a cylindrical reservoir into the surrounding soil. Zbl 1091.34009Agarwal, Ravi P.; O’Regan, Donal; Precup, Radu 2 2005 Continuation theory for contractions on spaces with two vector-valued metrics. Zbl 1034.54017O’Regan, Donal; Precup, Radu 2 2003 Existence theorems for nonlinear problems by continuation methods. Zbl 0906.47041Precup, Radu 2 1997 Discrete continuation method for nonlinear integral equations in Banach spaces. Zbl 0980.45007Precup, Radu 2 2000 Nonlinear boundary value problems for infinite systems of second-order functional differential equations. Zbl 0704.34022Precup, Radu 2 1988 Variational properties of the solutions of singular second-order differential equations and systems. Zbl 1368.34033Budescu, Angela; Precup, Radu 2 2016 Symmetric positive solutions to a singular \(\phi\)-laplace equation. Zbl 1421.34022Jebelean, Petru; Precup, Radu 2 2019 Poincaré inequalities in reflexive cones. Zbl 1216.46032Jebelean, Petru; Precup, Radu 1 2011 A mathematical approach to cell dynamics before and after allogeneic bone marrow transplantation. Zbl 1402.92155Precup, Radu; Trif, Damian; Serban, Marcel-Adrian; Cucuianu, Andrei 1 2010 Existence results for semilinear elliptic boundary value problems via topological methods. Zbl 1163.35382Moussaoui, Toufik; Precup, Radu 1 2009 Nonlinear Schrödinger equations via fixed point principles. Zbl 1264.35225Manole, Mihaela; Precup, Radu 1 2011 A fixed point theorem of Maia type in syntopogenous spaces. Zbl 0686.54029Precup, Radu 1 1988 Some fixed point theorems in terms of two measures of noncompactness. Zbl 1389.47141Precup, Radu; Rus, Ioan A. 1 2014 Topological transversality, perturbation theorems and second order differential equations. Zbl 0746.47033Precup, Radu 1 1989 Sur l’axiomatique des espaces à convexite. Zbl 0482.52002Precup, Radu 1 1980 Foundations of the continuation principles of Leray-Schauder type. Zbl 0841.47035Precup, Radu 1 1994 Existence and localization results for the nonlinear wave equation. Zbl 1107.35086Precup, Radu 1 2004 A compression type mountain pass theorem in conical shells. Zbl 1151.58007Precup, Radu 1 2008 On the continuation method and the nonlinear alternative for Caristi-type non-self-mappings. Zbl 1317.54019Precup, Radu 1 2014 Nonresonance theory for semilinear operator equations under regularity conditions. Zbl 1169.47053Muzsi, Dezideriu; Precup, Radu 1 2008 The nonlinear heat equation via fixed point principles. Zbl 1170.35462Precup, Radu 1 2006 Positive solutions for elliptic boundary value problems with a Harnack-like property. Zbl 1165.47059Moussaoui, Toufik; Precup, Radu 1 2008 A variational analogue of Krasnoselskii’s cone fixed point theory. Zbl 1441.47090Precup, Radu 1 2019 Nash-type equilibria for systems of Szulkin functionals. Zbl 1440.47049Precup, Radu 1 2016 Mathematical understanding of the autologous stem cell transplantation. Zbl 1313.92027Precup, Radu 1 2012 Existence results for systems with nonlinear coupled nonlocal initial conditions. Zbl 1389.34068Bolojan, Octavia; Infante, Gennaro; Precup, Radu 1 2015 A Schechter type critical point result in annular conical domains of a Banach space and applications. Zbl 1338.47117Lisei, Hannelore; Precup, Radu; Varga, Csaba 1 2016 A four-point boundary value problem with singular \(\phi \)-Laplacian. Zbl 1418.34049Chinní, Antonia; Di Bella, Beatrice; Jebelean, Petru; Precup, Radu 1 2019 Localization and multiplicity in the homogenization of nonlinear problems. Zbl 1421.35015Bunoiu, Renata; Precup, Radu 1 2020 Analysis of a planar differential system arising from hematology. Zbl 1438.34160Parajdi, Lorand Gabriel; Precup, Radu 1 2018 Le théorème des contractions dans des espaces syntopogenes. Zbl 0522.54039Precup, Radu 1 1980 Fixed point theory and generalized Leray-Schauder alternatives for approximable maps in topological vector spaces. Zbl 1067.47068Agarwal, Ravi P.; O’Regan, Donal; Precup, Radu 1 2003 Periodic solutions of superlinear impulsive differential systems. Zbl 0934.34031Kirr, E.; Precup, R. 1 1999 Measure of noncompactness and second order differential equations with deviating argument. Zbl 0885.34056Precup, Radu 1 1989 Localization and multiplicity in the homogenization of nonlinear problems. Zbl 1421.35015Bunoiu, Renata; Precup, Radu 1 2020 Positive periodic solutions for Lotka-Volterra systems with a general attack rate. Zbl 1433.34066Lois-Prados, Cristina; Precup, Radu 1 2020 Multiplicity results for operator systems via fixed point index. Zbl 1407.34036Precup, Radu; Rodríguez-López, Jorge 3 2019 Positive solutions for \(\phi\)-Laplace equations with discontinuous state-dependent forcing terms. Zbl 1420.34050Precup, Radu; Rodríguez-López, Jorge 2 2019 Symmetric positive solutions to a singular \(\phi\)-laplace equation. Zbl 1421.34022Jebelean, Petru; Precup, Radu 2 2019 A variational analogue of Krasnoselskii’s cone fixed point theory. Zbl 1441.47090Precup, Radu 1 2019 A four-point boundary value problem with singular \(\phi \)-Laplacian. Zbl 1418.34049Chinní, Antonia; Di Bella, Beatrice; Jebelean, Petru; Precup, Radu 1 2019 Positive solutions for discontinuous problems with applications to \(\phi \)-Laplacian equations. Zbl 1454.34031Precup, Radu; Rodríguez-López, Jorge 5 2018 Analysis of a planar differential system arising from hematology. Zbl 1438.34160Parajdi, Lorand Gabriel; Precup, Radu 1 2018 A critical point theorem in bounded convex sets and localization of Nash-type equilibria of nonvariational systems. Zbl 1388.58008Precup, Radu 1 2018 A three critical points result in a bounded domain of a Banach space and applications. Zbl 1413.47153Precup, Radu; Pucci, Patrizia; Varga, Csaba 3 2017 Heterogeneous vectorial fixed point theorems. Zbl 1453.47006Cardinali, Tiziana; Precup, Radu; Rubbioni, Paola 1 2017 Localization of positive critical points in Banach spaces and applications. Zbl 1378.58011Precup, Radu; Varga, Csaba 1 2017 Existence, localization and multiplicity of positive solutions to \(\phi\)-Laplace equations and systems. Zbl 1357.34056Herlea, Diana-Raluca; Precup, Radu 5 2016 Vectorial approach to coupled nonlinear Schrödinger systems under nonlocal Cauchy conditions. Zbl 1338.35403Bunoiu, Renata; Precup, Radu 4 2016 Multiple positive solutions to a fourth-order boundary-value problem. Zbl 1357.34054Cabada, Alberto; Precup, Radu; Saavedra, Lorena; Tersian, Stepan A. 4 2016 Variational properties of the solutions of singular second-order differential equations and systems. Zbl 1368.34033Budescu, Angela; Precup, Radu 2 2016 Nash-type equilibria for systems of Szulkin functionals. Zbl 1440.47049Precup, Radu 1 2016 A Schechter type critical point result in annular conical domains of a Banach space and applications. Zbl 1338.47117Lisei, Hannelore; Precup, Radu; Varga, Csaba 1 2016 Variational properties of the solutions of semilinear equations under nonresonance conditions. Zbl 1354.34111Budescu, Angela; Precup, Radu 1 2016 A unified existence theory for evolution equations and systems under nonlocal conditions. Zbl 1331.34149Cardinali, Tiziana; Precup, Radu; Rubbioni, Paola 8 2015 A topological approach to the existence and multiplicity of positive solutions of \((p, q)\)-Laplacian systems. Zbl 1328.35043Infante, Gennaro; Maciejewski, Mateusz; Precup, Radu 7 2015 Existence results for systems with nonlinear coupled nonlocal initial conditions. Zbl 1389.34068Bolojan, Octavia; Infante, Gennaro; Precup, Radu 1 2015 Existence results for systems with coupled nonlocal initial conditions. Zbl 1288.34019Bolojan-Nica, Octavia; Infante, Gennaro; Precup, Radu 15 2014 Nash-type equilibria and periodic solutions to nonvariational systems. Zbl 1300.47108Precup, Radu 7 2014 Implicit first order differential systems with nonlocal conditions. Zbl 1324.34020Bolojan, Octavia; Precup, Radu 4 2014 Multiple periodic solutions with prescribed minimal period to second-order Hamiltonian systems. Zbl 1305.34062Precup, Radu 2 2014 Perov type results in gauge spaces and their applications to integral systems on semi-axis. Zbl 1349.54122Novac, Adela; Precup, Radu 2 2014 Some fixed point theorems in terms of two measures of noncompactness. Zbl 1389.47141Precup, Radu; Rus, Ioan A. 1 2014 On the continuation method and the nonlinear alternative for Caristi-type non-self-mappings. Zbl 1317.54019Precup, Radu 1 2014 Linear and semilinear partial differential equations. An introduction. Zbl 1263.35001Precup, Radu 4 2013 On a bounded critical point theorem of Schechter. Zbl 1299.47143Precup, Radu 4 2013 Asymptotic stability for a model of cell dynamics after allogeneic bone marrow transplantation. Zbl 1335.37060Precup, R.; Şerban, M-A.; Trif, D. 2 2013 Moser-Harnack inequality, Krasnoselskii type fixed point theorems in cones and elliptic problems. Zbl 1282.35176Precup, Radu 10 2012 Multiple positive solutions of non-local initial value problems for first order differential systems. Zbl 1245.34026Precup, Radu; Trif, Damian 6 2012 Abstract weak Harnack inequality, multiple fixed points and \(p\)-Laplace equations. Zbl 1277.47070Precup, Radu 5 2012 Critical point theorems in cones and multiple positive solutions of elliptic problems. Zbl 1257.47070Precup, Radu 3 2012 Mathematical modeling of cell dynamics after allogeneic bone marrow transplantation. Zbl 1297.92043Precup, Radu; Arghirescu, Smaranda; Cucuianu, Andrei; Şerban, Margit 2 2012 Mathematical understanding of the autologous stem cell transplantation. Zbl 1313.92027Precup, Radu 1 2012 A planning algorithm for correction therapies after allogeneic stem cell transplantation. Zbl 1402.92254Precup, Radu; Şerban, Marcel-Adrian; Trif, Damian; Cucuianu, Andrei 1 2012 On the nonlocal initial value problem for first order differential systems. Zbl 1274.34041Nica, Octavia; Precup, Radu 8 2011 Positive solutions of functional-differential systems via the vector version of Krasnoselskii’s fixed point theorem in cones. Zbl 1265.34227Budisan, Sorin; Precup, Radu 3 2011 Two positive nontrivial solutions for a class of semilinear elliptic variational systems. Zbl 1200.35095Precup, Radu 3 2011 Poincaré inequalities in reflexive cones. Zbl 1216.46032Jebelean, Petru; Precup, Radu 1 2011 Nonlinear Schrödinger equations via fixed point principles. Zbl 1264.35225Manole, Mihaela; Precup, Radu 1 2011 Solvability of \(p, q\)-Laplacian systems with potential boundary conditions. Zbl 1189.34040Jebelean, Petru; Precup, Radu 10 2010 Existence results for systems of nonlinear evolution inclusions. Zbl 1207.35202Precup, Radu; Viorel, Adrian 5 2010 Two positive solutions of some singular boundary value problems. Zbl 1206.34045Precup, Radu 4 2010 A hypothetical-mathematical model of acute myeloid leukaemia pathogenesis. Zbl 1202.92035Cucuianu, Andrei; Precup, Radu 4 2010 A mathematical approach to cell dynamics before and after allogeneic bone marrow transplantation. Zbl 1402.92155Precup, Radu; Trif, Damian; Serban, Marcel-Adrian; Cucuianu, Andrei 1 2010 The role of matrices that are convergent to zero in the study of semilinear operator systems. Zbl 1165.65336Precup, Radu 46 2009 Existence, localization and multiplicity results for positive radial solutions of semilinear elliptic systems. Zbl 1178.35162Precup, Radu 16 2009 Fourth-order \(p\)-Laplacian nonlinear systems via the vector version of Krasnosel’skiĭ’s fixed point theorem. Zbl 1193.47057Djebali, Smail; Moussaoui, Toufik; Precup, Radu 7 2009 Data dependence of fixed points for non-self generalized contractions. Zbl 1226.47056Chis-Novac, Adela; Precup, Radu; Rus, Ioan A. 6 2009 The Leray-Schauder boundary condition in critical point theory. Zbl 1186.58012Precup, Radu 5 2009 Existence results for semilinear elliptic boundary value problems via topological methods. Zbl 1163.35382Moussaoui, Toufik; Precup, Radu 1 2009 Existence results for systems of nonlinear evolution equations. Zbl 1172.35438Precup, Radu; Viorel, Adrian 6 2008 Non-resonance and existence for systems of non-linear operator equations. Zbl 1160.47049Muzsi, Dezideriu; Precup, Radu 4 2008 A compression type mountain pass theorem in conical shells. Zbl 1151.58007Precup, Radu 1 2008 Nonresonance theory for semilinear operator equations under regularity conditions. Zbl 1169.47053Muzsi, Dezideriu; Precup, Radu 1 2008 Positive solutions for elliptic boundary value problems with a Harnack-like property. Zbl 1165.47059Moussaoui, Toufik; Precup, Radu 1 2008 Seminlinear evolution equations with nonlocal initial conditions. Zbl 1154.34027Boucherif, Abdelkader; Precup, Radu 19 2007 A vector version of Krasnosel’skiĭ’s fixed point theorem in cones and positive periodic solutions of nonlinear systems. Zbl 1134.47041Precup, Radu 17 2007 Homotopy method for positive solutions of \(p\)-Laplace inclusions. Zbl 1168.35445Couchouron, Jean-François; Precup, Radu 2 2007 Domain invariance theorems for contractive type maps. Zbl 1148.47041Agarwal, Ravi P.; O’Regan, Donal; Precup, Radu 2 2007 Positive solutions of nonlinear systems with \(p\)-Laplacian on finite and semi-infinite intervals. Zbl 1135.34014O’Regan, Donal; Precup, Radu 1 2007 Positive solutions of semi-linear elliptic problems via Krasnoselskii type theorems in cones and Harnack’s inequality. Zbl 1366.35040Precup, Radu 5 2006 The nonlinear heat equation via fixed point principles. Zbl 1170.35462Precup, Radu 1 2006 Compression-expansion fixed point theorem in two norms and applications. Zbl 1078.47017O’Regan, Donal; Precup, Radu 9 2005 Positive solutions of evolution operator equations. Zbl 1078.47059Precup, Radu 2 2005 Existence theory for nonlinear operator equations of Hammerstein type in Banach spaces. Zbl 1086.47034O’Regan, Donal; Precup, Radu 2 2005 Boundary value problems arising in the percolation of water from a cylindrical reservoir into the surrounding soil. Zbl 1091.34009Agarwal, Ravi P.; O’Regan, Donal; Precup, Radu 2 2005 Continuation theory for general contractions in gauge spaces. Zbl 1087.47050Chiş, Adela; Precup, Radu 5 2004 Nonnegative solutions of nonlinear integral equations in ordered Banach spaces. Zbl 1054.45009Horvat-Marc, Andrei; Precup, Radu 3 2004 Anti-periodic solutions for second order differential inclusions. Zbl 1073.45514Couchouron, Jean-Francois; Precup, Radu 2 2004 Existence and localization results for the nonlinear wave equation. Zbl 1107.35086Precup, Radu 1 2004 On the nonlocal initial value problem for first order differential equations. Zbl 1050.34001Boucherif, Abdelkader; Precup, Radu 19 2003 Fixed point theorems for decomposable multi-valued maps and applications. Zbl 1057.54032Precup, R. 4 2003 Location of nonnegative solutions for differential equations on finite and semi-infinite intervals. Zbl 1055.34027Agarwal, Ravi P.; Meehan, Maria; O’Regan, Donal; Precup, Radu 3 2003 Continuation theory for contractions on spaces with two vector-valued metrics. Zbl 1034.54017O’Regan, Donal; Precup, Radu 2 2003 Fixed point theory and generalized Leray-Schauder alternatives for approximable maps in topological vector spaces. Zbl 1067.47068Agarwal, Ravi P.; O’Regan, Donal; Precup, Radu 1 2003 A nonlinear periodic averaging principle. Zbl 1034.34074Couchouron, Jean-François; Kamenski, Mikhail; Precup, Radu 1 2003 Methods in nonlinear integral equations. Zbl 1060.65136Precup, Radu 35 2002 Existence principles for inclusions of Hammerstein type involving noncompact acyclic multivalued maps. Zbl 0991.47050Couchouron, Jean-François; Precup, Radu 7 2002 Some existence results for differential equations with both retarded and advanced arguments. Zbl 1084.34542Precup, Radu 4 2002 Abstract generalized quasilinearization method for coincidences. Zbl 1020.65031Buică, Adriana; Precup, Radu 3 2002 Integrable solutions of Hammerstein integral inclusions in Banach spaces. Zbl 1022.45007O’Regan, Donal; Precup, Radu 3 2002 Theorems of Leray-Schauder type and applications. Zbl 1045.47002O’Regan, Donal; Precup, Radu 22 2001 Existence criteria for integral equations in Banach spaces. Zbl 0993.45011O’Regan, Donal; Precup, Radu 16 2001 On the Palais-Smale condition for Hammerstein integral equations in Hilbert spaces. Zbl 1042.47530Precup, Radu 3 2001 Convexity and quadratic monotone approximation in delay differential equations. Zbl 1014.65059Precup, Radu 1 2001 Fixed point theorems for set-valued maps and existence principles for integral inclusions. Zbl 0956.47026O’Regan, Donal; Precup, Radu 28 2000 Discrete continuation method for boundary value problems on bounded sets in Banach spaces. Zbl 0939.34021Precup, Radu 5 2000 Discrete continuation method for nonlinear integral equations in Banach spaces. Zbl 0980.45007Precup, Radu 2 2000 Periodic solutions of superlinear impulsive differential systems. Zbl 0934.34031Kirr, E.; Precup, R. 1 1999 Existence theorems for nonlinear problems by continuation methods. Zbl 0906.47041Precup, Radu 2 1997 Existence and approximation of positive fixed points of nonexpansive maps. Zbl 1076.47506Precup, Radu 1 1997 On the continuation principle for nonexpansive maps. Zbl 1075.47510Precup, Radu 1 1996 Continuation theorems for mappings of Caristi type. Zbl 1147.47307Precup, Radu 1 1996 Monotone technique to the initial values problem for a delay integral equation from biomathematics. Zbl 0865.47051Precup, Radu 3 1995 ...and 12 more Documents all cited Publications top 5 cited Publications all top 5 Cited by 356 Authors 52 Precup, Radu 49 O’Regan, Donal 13 Agarwal, Ravi P. 10 Petruşel, Adrian 9 Infante, Gennaro 9 Wang, Jinrong 7 Nieto Roig, Juan Jose 7 Şerban, Marcel Adrian 6 Lan, Kunquan 6 Pietramala, Paolamaria 5 Cardinali, Tiziana 5 Jebelean, Petru 5 Ouahab, Abdelghani 5 Rakočević, Vladimir 5 Rodríguez-López, Jorge 5 Rubbioni, Paola 5 Samet, Bessem 5 Varga, Csaba György 5 Yang, Zhilin 4 Djebali, Smail 4 Moussaoui, Toufik 4 Rodríguez-López, Rosana 4 Zhou, Yong 3 Abbas, Mujahid 3 Ashyralyev, Allaberen 3 Blouhi, Tayeb 3 Bunoiu, Renata 3 Cianciaruso, Filomena 3 El-Sayed, Ahmed Mohamed Ahmed 3 Galewski, Marek 3 Gupta, Animesh 3 Henderson, Johnny Lee 3 Jleli, Mohamed 3 Li, Yongxiang 3 Lupulescu, Vasile 3 Mishra, Lakshmi Narayan 3 Ntouyas, Sotiris K. 3 Petruşel, Gabriela 3 Pietkun, Radosław 3 Rus, Ioan A. 3 Satco, Bianca-Renata 3 Tisdell, Christopher C. 3 Zhang, Yuruo 2 Ahmad, Bashir 2 Ahmed, Hamdy M. 2 Ariza-Ruiz, David 2 Băleanu, Dumitru I. 2 Bełdziński, Michał 2 Benchohra, Mouffak 2 Benmezaï, Abdelhamid 2 Boucherif, Abdelkader 2 Budescu, Angela 2 Buică, Adriana 2 Cui, Yujun 2 Cvetković, Marija S. 2 Dobritoiu, Maria A. 2 El-Gebeily, Mohamed A. 2 Erdogan, Abdullah Said 2 Fečkan, Michal 2 Feng, Meiqiang 2 Ferhat, Mohamed 2 Fewster-Young, Nicholas 2 Frigon, Marlène 2 Graef, John R. 2 Hernández, Eduardo M. 2 Hong, Shihuang 2 Hosseinzadeh, Hasan 2 Iqbal, Afshan 2 Jabeen, Tahira 2 Jiang, Wei 2 Jiménez-Melado, Antonio 2 Liang, Jin 2 Lin, Wei 2 Lisei, Hannelore 2 Liu, James Hetao 2 Lois-Prados, Cristina 2 Luca, Rodica 2 Maciejewski, Mateusz 2 Mishra, Vishnu Narayan 2 Obukhovskiĭ, Valeriĭ Vladimirovich 2 Ravichandran, Chokkalingam 2 Sinacer, Moulay Larbi 2 Singh, Vikram 2 Trif, Damian 2 Vetro, Calogero 2 Vetro, Francesca 2 Xiao, Ti-Jun 2 Xu, Jiafa 2 Zafer, Ağacık 1 Abad, Manuel F. 1 Abbas, Said 1 Agarana, Michael C. 1 Ahmed, Reda Gamal 1 Ali, Faeem 1 Ali, Javid 1 Ali, Muhammad Usman 1 Alias, Idham Arif 1 Almuthaybiri, Saleh S. 1 Al-saedi, Ahmed Eid Salem 1 Altun, Ishak ...and 256 more Authors all top 5 Cited in 112 Serials 24 Journal of Mathematical Analysis and Applications 19 Nonlinear Analysis. Theory, Methods & Applications. Series A: Theory and Methods 17 Fixed Point Theory and Applications 14 Applied Mathematics Letters 13 Applied Mathematics and Computation 13 Journal of Fixed Point Theory and Applications 11 Applicable Analysis 9 Mediterranean Journal of Mathematics 8 Mathematical and Computer Modelling 6 Computers & Mathematics with Applications 6 Nonlinear Analysis. Modelling and Control 6 Journal of Applied Mathematics and Computing 5 Results in Mathematics 5 Journal of Nonlinear Science and Applications 4 Fuzzy Sets and Systems 4 Zeitschrift für Analysis und ihre Anwendungen 4 Abstract and Applied Analysis 4 Positivity 4 Nonlinear Analysis. Real World Applications 4 Advances in Difference Equations 4 Boundary Value Problems 3 Ukrainian Mathematical Journal 3 Journal of Computational and Applied Mathematics 3 Journal of Optimization Theory and Applications 3 Mathematische Nachrichten 3 Journal of Integral Equations and Applications 3 Journal of Inequalities and Applications 3 Discrete Dynamics in Nature and Society 3 Fractional Differential Calculus 3 Journal of Function Spaces 3 Nonlinear Analysis. Theory, Methods & Applications 2 Mathematical Methods in the Applied Sciences 2 Rocky Mountain Journal of Mathematics 2 Journal of Differential Equations 2 Numerical Functional Analysis and Optimization 2 Proceedings of the American Mathematical Society 2 Topological Methods in Nonlinear Analysis 2 Random Operators and Stochastic Equations 2 Bulletin des Sciences Mathématiques 2 Journal of Nonlinear Mathematical Physics 2 Communications on Pure and Applied Analysis 2 Analysis and Applications (Singapore) 2 Complex Variables and Elliptic Equations 2 Set-Valued and Variational Analysis 2 Revista de la Real Academia de Ciencias Exactas, Físicas y Naturales. Serie A: Matemáticas. RACSAM 2 Journal of Theoretical Biology 2 Journal of Applied Analysis and Computation 2 Electronic Journal of Mathematical Analysis and Applications EJMAA 2 International Journal of Analysis and Applications 1 Bulletin of the Australian Mathematical Society 1 Acta Universitatis Palackianae Olomucensis. 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Series B 1 Stochastic Analysis and Applications 1 Acta Mathematica Hungarica 1 Physica D 1 Journal of Theoretical Probability 1 Applied Mathematical Modelling 1 International Journal of Computer Mathematics 1 SIAM Journal on Mathematical Analysis 1 Expositiones Mathematicae 1 Journal of Dynamics and Differential Equations 1 Journal of the Egyptian Mathematical Society 1 Turkish Journal of Mathematics 1 NoDEA. Nonlinear Differential Equations and Applications 1 Opuscula Mathematica 1 Complexity 1 Discrete and Continuous Dynamical Systems 1 Matematychni Metody ta Fizyko-Mekhanichni Polya 1 Journal of Applied Analysis 1 Nonlinear Dynamics 1 Mathematica Moravica 1 Analysis (München) 1 Communications in Nonlinear Science and Numerical Simulation 1 Differentsial’nye Uravneniya i Protsessy Upravleniya 1 Dynamics of Continuous, Discrete & Impulsive Systems. Series A. Mathematical Analysis 1 Dynamical Systems 1 Discrete and Continuous Dynamical Systems. 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Scienze Matematiche 1 Nonlinear Oscillations 1 Mathematical Modelling of Natural Phenomena 1 SIAM Journal on Imaging Sciences ...and 12 more Serials all top 5 Cited in 33 Fields 176 Operator theory (47-XX) 138 Ordinary differential equations (34-XX) 60 Partial differential equations (35-XX) 56 General topology (54-XX) 35 Integral equations (45-XX) 19 Numerical analysis (65-XX) 16 Biology and other natural sciences (92-XX) 15 Global analysis, analysis on manifolds (58-XX) 14 Calculus of variations and optimal control; optimization (49-XX) 12 Algebraic topology (55-XX) 11 Real functions (26-XX) 11 Systems theory; control (93-XX) 9 Dynamical systems and ergodic theory (37-XX) 7 Probability theory and stochastic processes (60-XX) 4 Linear and multilinear algebra; matrix theory (15-XX) 4 Functional analysis (46-XX) 3 Measure and integration (28-XX) 3 Fluid mechanics (76-XX) 3 Game theory, economics, finance, and other social and behavioral sciences (91-XX) 2 Mathematical logic and foundations (03-XX) 2 Convex and discrete geometry (52-XX) 2 Computer science (68-XX) 2 Mechanics of deformable solids (74-XX) 2 Optics, electromagnetic theory (78-XX) 1 History and biography (01-XX) 1 Several complex variables and analytic spaces (32-XX) 1 Difference and functional equations (39-XX) 1 Harmonic analysis on Euclidean spaces (42-XX) 1 Geometry (51-XX) 1 Statistics (62-XX) 1 Quantum theory (81-XX) 1 Statistical mechanics, structure of matter (82-XX) 1 Operations research, mathematical programming (90-XX) Citations by Year