Edit Profile Rus, Ioan A. Compute Distance To: Compute Author ID: rus.ioan-a Published as: Rus, I. A.; Rus, Ioan A.; Rus, Ion A. Homepage: http://math.ubbcluj.ro/~iarus/ External Links: MGP Documents Indexed: 215 Publications since 1963, including 9 Books Reviewing Activity: 449 Reviews Biographic References: 4 Publications all top 5 Co-Authors 139 single-authored 31 Petruşel, Adrian 21 Şerban, Marcel Adrian 5 Berinde, Vasile 4 Lungu, Nicolaie 4 Otrocol, Diana 3 Egri, Edith 3 Măruşter, Ştefan 3 Păcurar, Mădălina 3 Petruşel, Gabriela 3 Rus, Bogdan 2 Agratini, Octavian 2 Mureşan, Anton S. 2 Mureşan, Sorin 2 Precup, Radu 2 Sîntămărian, Alina 2 Trif, Damian 1 Aldea, Florica 1 András, Szilárd 1 Angelov, Vasil G. 1 Buică, Adriana 1 Cătinaş, Teodora 1 Chis-Novac, Adela 1 Cont, Ioan 1 Dârzu Ilea, Veronica Ana 1 Dobritoiu, Maria A. 1 Iancu, Crăciun 1 Ilea, Veronica Ana 1 Miklos, Edith 1 Mureşan, Viorica 1 Peetre, Jaak 1 Yao, Jen-Chih all top 5 Serials 42 Studia Universitatis Babeş-Bolyai. Mathematica 19 Fixed Point Theory 9 Carpathian Journal of Mathematics 9 Preprint. “Babeş-Bolyai” University. Faculty of Mathematics and Physics. Research Seminars 7 Mathématica – Revue d’Analyse Numérique et de Théorie de l’Approximation. Mathématica 7 Preprint. “Babeş-Bolyai” University. Faculty of Mathematics. Research Seminars 5 Studii şi Cercetări Matematice 5 Creative Mathematics and Informatics 5 Studia Universitatis Babeş-Bolyai. Series Mathematica, Physica 4 Mathematica 4 Scientiae Mathematicae Japonicae 4 Seminar on Fixed Point Theory Cluj-Napoca 4 Studia Universitatis Babeş-Bolyai. Series Mathematica, Mechanica 3 Mathématica – Revue d’Analyse Numérique et de Théorie de l’Approximation. L’Analyse Numérique et la Théorie de l’Approximation 3 Bulletin Mathématique de la Société des Sciences Mathématiques de Roumanie. Nouvelle Série 3 Journal of Nonlinear and Convex Analysis 2 Revue Roumaine de Mathématiques Pures et Appliquées 2 Analele Ştiinţifice ale Universităţii Al. I. Cuza din Iaşi. (Serie Nouă.) Secţiunea Ia. Matematică-Informatică 2 Commentationes Mathematicae Universitatis Carolinae 2 Nonlinear Analysis. Theory, Methods & Applications. Series A: Theory and Methods 2 Libertas Mathematica 2 Glasnik Matematički. Serija III 2 “Babeş-Bolyai” University. Faculty of Mathematics and Computer Science. Research Seminars. Preprint 2 Analele Universităţii de Vest din Timişoara. Seria Matematică-Informatică 2 Annals of the Academy of Romanian Scientists. Mathematics and its Applications 1 Journal of Mathematical Analysis and Applications 1 Mathematica Japonica 1 Mathematica Scandinavica 1 Mathematics Seminar Notes 1 Proceedings of the American Mathematical Society 1 Rendiconti dell’Istituto di Matematica dell’Università di Trieste 1 Zeitschrift für Analysis und ihre Anwendungen 1 Pure Mathematics Manuscript 1 Analele Ştiinţifice ale Universităţii Al. I. Cuza din Iaşi. Serie Nouă. Matematică 1 Revue d’Analyse Numérique et de Théorie de l’Approximation 1 Topological Methods in Nonlinear Analysis 1 Buletinul Ştiinţific al Universităţii Baia Mare. Seria B 1 Analele Universităţii din Craiova. Seria Matematică Informatică 1 Taiwanese Journal of Mathematics 1 Mathematical Inequalities & Applications 1 Scripta Scientiarum Mathematicarum 1 Mathematica Moravica 1 Nonlinear Analysis Forum 1 Miskolc Mathematical Notes 1 Fixed Point Theory and Applications 1 Cubo 1 Bollettino della Unione Matematica Italiana. Series III 1 Bollettino della Unione Matematica Italiana. Series IV 1 Journal of Mathematical Inequalities 1 Journal of Nonlinear Science and Applications 1 Annals of the Tiberiu Popoviciu Seminar of Functional Equations, Approximation and Convexity 1 Set-Valued and Variational Analysis 1 Bulletin of the Transilvania University of Braşov. Series III. Mathematics, Informatics, Physics 1 Academia Republicii Populare Romîne, Filiala Cluj, Studii şi Cercetări Matematica 1 Nonlinear Analysis. Theory, Methods & Applications 1 Advances in the Theory of Nonlinear Analysis and its Applications all top 5 Fields 133 Operator theory (47-XX) 105 General topology (54-XX) 32 Integral equations (45-XX) 29 Ordinary differential equations (34-XX) 17 Partial differential equations (35-XX) 11 Numerical analysis (65-XX) 9 Difference and functional equations (39-XX) 9 Approximations and expansions (41-XX) 5 General and overarching topics; collections (00-XX) 5 Real functions (26-XX) 4 Dynamical systems and ergodic theory (37-XX) 3 Order, lattices, ordered algebraic structures (06-XX) 3 Category theory; homological algebra (18-XX) 3 Sequences, series, summability (40-XX) 3 Functional analysis (46-XX) 3 Biology and other natural sciences (92-XX) 2 Linear and multilinear algebra; matrix theory (15-XX) 2 Measure and integration (28-XX) 2 Calculus of variations and optimal control; optimization (49-XX) 2 Global analysis, analysis on manifolds (58-XX) 1 History and biography (01-XX) 1 General algebraic systems (08-XX) 1 Field theory and polynomials (12-XX) 1 Functions of a complex variable (30-XX) 1 Several complex variables and analytic spaces (32-XX) 1 Algebraic topology (55-XX) 1 Mechanics of particles and systems (70-XX) 1 Game theory, economics, finance, and other social and behavioral sciences (91-XX) Publications by Year all cited Publications top 5 cited Publications Citations contained in zbMATH 110 Publications have been cited 1,084 times in 652 Documents Cited by ▼ Year ▼ Generalized contractions and applications. Zbl 0968.54029Rus, Ioan A. 141 2001 Fixed point theorems in ordered \(L\)-spaces. Zbl 1086.47026Petrusel, Adrian; Rus, Ioan A. 99 2006 Fixed point theory for cyclic \(\varphi\)-contractions. Zbl 1191.54042Păcurar, Mădălina; Rus, Ioan A. 67 2010 Ulam stabilities of ordinary differential equations in a Banach space. Zbl 1224.34164Rus, Ioan A. 54 2010 Ulam stability of ordinary differential equations. Zbl 1224.34165Rus, Ioan A. 54 2009 Remarks on Ulam stability of the operatorial equations. Zbl 1204.47071Rus, Ioan A. 50 2009 Fixed point theory. Zbl 1171.54034Rus, Ioan A.; Petruşel, Adrian; Petruşel, Gabriela 49 2008 Picard operators and applications. Zbl 1031.47035Rus, Ioan A. 44 2003 Data dependence of the fixed point set of some multivalued weakly Picard operators. Zbl 1055.47047Rus, Ioan A.; Petruşel, Adrian; Sîntămărian, Alina 33 2003 Fixed point theory in partial metric spaces. Zbl 1199.54244Rus, Ion A. 27 2008 Fixed point theory 1950–2000. Romanian contributions. Zbl 1005.54037Rus, Ioan A.; Petruşel, Adrian; Petruşel, Gabriela 27 2002 Well-posedness in the generalized sense of the fixed point problems for multivalued operators. Zbl 1149.54022Petruşel, Adrian; Rus, Ioan A.; Yao, Jen-Chih 26 2007 The theory of a metrical fixed point theorem: theoretical and applicative relevances. Zbl 1172.54030Rus, Ioan A. 22 2008 Iterates of Bernstein operators, via contraction principle. Zbl 1056.41004Rus, Ioan A. 18 2004 Cyclic representations and fixed points. Zbl 07033212Rus, Ioan A. 15 2005 Weakly Picard mappings. Zbl 0787.54045Rus, Ioan A. 13 1993 Weakly Picard operators: equivalent definitions, applications and open problems. Zbl 1111.47048Rus, Ioan A.; Petruşel, Adrian; Şerban, Marcel Adrian 12 2006 Well-posedness of the fixed point problem for multivalued operators. Zbl 1169.47037Petruşel, Adrian; Rus, Ioan A. 10 2007 Iterates of a class of discrete linear operators via contraction principle. Zbl 1096.41015Agratini, Octavian; Rus, Ioan A. 10 2003 Results and problems in the metrical common fixed point theory. Zbl 0427.54024Rus, Ioan A. 10 1979 Fixed points, fixed sets and iterated multifunction systems for nonself multivalued operators. Zbl 1328.54047Petruşel, Adrian; Rus, Ioan A.; Şerban, Marcel-Adrian 9 2015 Gronwall lemmas: ten open problems. Zbl 1223.47064Rus, Ioan A. 9 2009 Weakly Picard operators and applications. Zbl 1035.47044Rus, Ioan A. 8 2001 Basic problems of the metric fixed point theory revisited. II. Zbl 0878.47044Rus, Ioan A. 8 1991 An abstract point of view on iterative approximation of fixed points: impact on the theory of fixed point equations. Zbl 1327.47066Rus, Ioan A. 7 2012 Gronwall Lemma approach to the hyers-Ulam-Rassias stability of an integral equation. Zbl 1185.45015Rus, Ioan A. 7 2010 An iterative method for the solution of the equation x=f(x,…,x). Zbl 0486.54038Rus, Ioan A. 7 1981 Fixed point theorems for multivalued mappings in complete metric spaces. Zbl 0336.54047Rus, Ioan A. 7 1975 Basic problems of the metric fixed point theory and the relevance of a metric fixed point theorem. Zbl 1313.54108Rus, Ioan A.; Şerban, Marcel-Adrian 6 2013 The theory of a metric fixed point theorem for multivalued operators. Zbl 1225.54026Petruşel, Adrian; Rus, Ioan A. 6 2010 Data dependence of fixed points for non-self generalized contractions. Zbl 1226.47056Chis-Novac, Adela; Precup, Radu; Rus, Ioan A. 6 2009 Picard operators and well-posedness of fixed point problems. Zbl 1164.47060Rus, Ioan A. 6 2007 Fixed point theory for multivalued operators on a set with two metrics. Zbl 1133.47036Petruşel, Adrian; Rus, Ioan A. 6 2007 Strict fixed point theory. Zbl 1070.47519Rus, Ioan A. 6 2003 Data dependence of the fixed points set of multivalued weakly Picard operators. Zbl 1027.47053Rus, Ioan A.; Petruşel, Adrian; Sîntămărian, Alina 6 2001 Data dependence of the fixed point set of weakly Picard operators. Zbl 1005.54036Rus, Ioan A.; Mureşan, Sorin 6 1998 Generalized phi-contractions. Zbl 0525.54029Rus, Ioan A. 6 1982 Some fixed point theorems in metric spaces. Zbl 0243.54041Rus, Ioan A. 6 1972 An abstract point of view on iterative approximation of fixed points of nonself operators. Zbl 1310.47089Berinde, V.; Măruşter, Şt.; Rus, I. A. 5 2014 Properties of the solutions of those equations for which the Krasnoselskii iteration converges. Zbl 1275.47126Rus, Ioan A. 5 2012 Ulam stability of the operatorial equations. Zbl 1248.39043Rus, Ioan A. 5 2011 Ulam stability of a nonlinear hyperbolic partial differential equation. Zbl 1249.35219Lungu, Nicolaie; Rus, Ioan A. 5 2008 Some generalizations of a Cauchy lemma and applications. Zbl 1224.54104Rus, Ioan A.; Serban, Marcel-Adrian 5 2008 Dynamics on \((P_{cp}(X), H_d)\) generated by a finite family of multi-valued operators on \((X,d)\). Zbl 1011.47043Petruşel, Adrian; Rus, Ioan A. 5 2001 An abstract point of view in the nonlinear diference equations. Zbl 1084.47525Rus, Ioan A. 5 1999 Metrical fixed point theorems. Zbl 0506.54037Rus, Ioan A. 5 1979 Sur la positivite de la fonction de Green. Zbl 0164.13003Peetre, J.; Rus, I. A. 5 1967 Some fixed point theorems for nonself generalized contraction. Zbl 1389.54113Rus, Ioan A.; Şerban, Marcel-Adrian 4 2016 The retraction-displacement condition in the theory of fixed point equation with a convergent iterative algorithm. Zbl 06762112Berinde, V.; Petruşel, A.; Rus, I. A.; Şerban, M. A. 4 2016 Kannan contractions and strongly demicontractive mappings. Zbl 1389.47133Măruşter, Ştefan; Rus, Ioan A. 4 2015 Results and problems in Ulam stability of operatorial equations and inclusions. Zbl 1311.39052Rus, Ioan A. 4 2014 An abstract point of view on iterative approximation schemes of fixed points for multivalued operators. Zbl 1432.54075Petruşel, Adrian; Rus, Ioan A. 4 2013 The role of equivalent metrics in fixed point theory. Zbl 1278.54044Petruşel, Adrian; Rus, Ioan A.; Şerban, Marcel-Adrian 4 2013 A class of abstract Volterra equations, via weakly Picard operators technique. Zbl 1197.47080Şerban, M. A.; Rus, I. A.; Petruşel, A. 4 2010 Functional-differential equations with “maxima” via weakly Picard operators theory. Zbl 1194.34121Otrocol, Diana; Rus, Ioan A. 4 2008 Fixed points for operators on generalized metric spaces. Zbl 1160.54030Petruşel, Adrian; Rus, Ioan A.; Şerban, Marcel Adrian 4 2008 Functional-differential equations with maxima of mixed type. Zbl 1162.34052Otrocol, Diana; Rus, Ioan A. 4 2008 First order iterative functional-differential equation with parameter. Zbl 1212.47039Egri, Edith; Rus, Ioan A. 4 2007 Fixed points, upper and lower fixed points: abstract Gronwall lemmas. Zbl 1113.54304Rus, Ioan A. 4 2004 Multivalued Picard and weakly Picard operators. Zbl 1091.47047Petruşel, Adrian; Rus, Ioan A. 4 2004 Fiber Picard operators theorem and applications. Zbl 1027.47515Rus, Ioan A. 4 1999 On common fixed points. Zbl 0266.54016Rus, Ioan A. 4 1973 On a functional Volterra-Fredholm integral equation, via Picard operators. Zbl 1195.45035Lungu, Nicolaie; Rus, Ioan A. 3 2009 An integral equation arising from infectious diseases, via Picard operator. Zbl 1164.45303Dobriţoiu, M.; Rus, I. A.; Şerban, M. A. 3 2007 Data dependence of the fixed points in a set with two metrics. Zbl 1136.54028Rus, Ioan A. 3 2007 Weakly Picard operators on a set with two metrics. Zbl 1112.47306Rus, Ioan A.; Mureşan, Anton S.; Mureşan, Viorica 3 2005 Iterates of Stancu operators, via contraction principle. Zbl 1249.41020Rus, Ioan A. 3 2002 A fiber generalized contraction theorem and applications. Zbl 1027.47514Rus, Ioan A. 3 1999 Some variants of contraction principle, generalizations and applications. Zbl 1389.54112Rus, Ioan A. 2 2016 Nonexpansive operators as graphic contractions. Zbl 1362.47036Petruşel, Adrian; Rus, Ioan A.; Şerban, Marcel-Adrian 2 2016 From a Dieudonné theorem concerning the Cauchy problem to an open problem in the theory of weakly Picard operators. Zbl 1349.54086Berinde, Vasile; Păcurar, Mădălina; Rus, Ioan A. 2 2014 The generalized retraction methods in fixed point theory for nonself operators. Zbl 1326.47067Rus, Ioan A. 2 2014 Basic problems of the metric fixed point theory and the relevance of a metric fixed point theorem for a multivalued operator. Zbl 1293.47053Petruşel, A.; Rus, I. A.; Şerban, M. A. 2 2014 A Müller’s example to Cauchy problem: an operatorial point of view. Zbl 1278.47053Rus, Ioan A. 2 2012 Step method for some integral equations from biomathematics. Zbl 1249.65288Rus, Ioan A.; Serban, Marcel-Adrian; Trif, Damian 2 2011 Fibre Picard operators on gauge spaces and applications. Zbl 1176.47042Rus, I. A.; Petruşel, A.; Şerban, M. A. 2 2008 Abstract models of step method which imply the convergence of successive approximations. Zbl 1159.47046Rus, Ioan A. 2 2008 Fixed point structure theory. Zbl 1110.47047Rus, Ioan A. 2 2006 First order functional-differential equations with both advanced and retarded arguments. Zbl 1062.34067Rus, Ioan A.; Darzu-Ilea, Veronica 2 2004 Iterates of some bivariate approximation process via weakly Picard operators. Zbl 1206.41021Agratini, Octavian; Rus, Ioan A. 2 2003 Functional-differential equations of mixed type, via weakly Picard operators. Zbl 1035.34073Rus, Ioan A. 2 2002 Hyperbolic differential inequalities. Zbl 1020.47052Lungu, N.; Rus, I. A. 2 2001 On a fixed point theorem of Maia. Zbl 0374.54039Rus, Ioan A. 2 1977 Über eine Methode der sukzessiven Approximationen. Zbl 0249.47054Rus, Ioan A. 2 1972 Graphic contraction principle and applications. Zbl 07216131Petruşel, A.; Rus, I. A. 1 2019 Contributions to the fixed point theory of diagonal operators. Zbl 1367.47060Petruşel, Adrian; Rus, Ioan A.; Şerban, Marcel-Adrian 1 2016 Remarks on a LaSalle conjecture on global asymptotic stability. Zbl 1372.47068Rus, Ioan A. 1 2016 Some fixed point theorems in terms of two measures of noncompactness. Zbl 1389.47141Precup, Radu; Rus, Ioan A. 1 2014 Heuristic introduction to weakly Picard operator theory. Zbl 1349.47090Rus, Ioan A. 1 2014 A class of functional-integral equations with applications to a bilocal problem. Zbl 1327.45005Petruşel, Adrian; Rus, Ioan A. 1 2014 Some fixed point theorems on Cartesian product in terms of vectorial measures of noncompactness. Zbl 1349.47089Rus, Ioan A.; Şerban, Marcel-Adrian 1 2014 Fixed point and interpolation point set of a positive linear operator on \(C(\overline{D})\). Zbl 1240.41069Rus, Ioan A. 1 2010 Operators on infinite dimensional Cartesian product. Zbl 1223.47065Rus, Ioan A.; Şerban, Marcel-Adrian 1 2010 Some nonlinear functional differential and integral equations, via weakly Picard operator theory: a survey. Zbl 1217.47145Rus, Ioan A. 1 2010 Iterates of Stancu operators (via fixed point principles) revisited. Zbl 1250.41013Rus, Ioan A. 1 2010 Kasahara spaces. Zbl 1213.54076Rus, Ioan A. 1 2010 Fixed point theorems for set-valued \(Y\)-contractions. Zbl 1126.47047Rus, Ioan A.; Petruşel, Adrian; Petruşel, Gabriela 1 2007 Metric space with fixed point property with respect to contractions. Zbl 1174.54386Rus, Ioan A. 1 2006 Boundary value problems for iterative functional-differential equations. Zbl 1164.47400Rus, Ioan A.; Egri, Edith 1 2006 Set-theoretic aspects of fixed point theory of multivalued operators: open problems. Zbl 1082.54527Rus, Ioan A. 1 2005 Graphic contraction principle and applications. Zbl 07216131Petruşel, A.; Rus, I. A. 1 2019 Some fixed point theorems for nonself generalized contraction. Zbl 1389.54113Rus, Ioan A.; Şerban, Marcel-Adrian 4 2016 The retraction-displacement condition in the theory of fixed point equation with a convergent iterative algorithm. Zbl 06762112Berinde, V.; Petruşel, A.; Rus, I. A.; Şerban, M. A. 4 2016 Some variants of contraction principle, generalizations and applications. Zbl 1389.54112Rus, Ioan A. 2 2016 Nonexpansive operators as graphic contractions. Zbl 1362.47036Petruşel, Adrian; Rus, Ioan A.; Şerban, Marcel-Adrian 2 2016 Contributions to the fixed point theory of diagonal operators. Zbl 1367.47060Petruşel, Adrian; Rus, Ioan A.; Şerban, Marcel-Adrian 1 2016 Remarks on a LaSalle conjecture on global asymptotic stability. Zbl 1372.47068Rus, Ioan A. 1 2016 Fixed points, fixed sets and iterated multifunction systems for nonself multivalued operators. Zbl 1328.54047Petruşel, Adrian; Rus, Ioan A.; Şerban, Marcel-Adrian 9 2015 Kannan contractions and strongly demicontractive mappings. Zbl 1389.47133Măruşter, Ştefan; Rus, Ioan A. 4 2015 An abstract point of view on iterative approximation of fixed points of nonself operators. Zbl 1310.47089Berinde, V.; Măruşter, Şt.; Rus, I. A. 5 2014 Results and problems in Ulam stability of operatorial equations and inclusions. Zbl 1311.39052Rus, Ioan A. 4 2014 From a Dieudonné theorem concerning the Cauchy problem to an open problem in the theory of weakly Picard operators. Zbl 1349.54086Berinde, Vasile; Păcurar, Mădălina; Rus, Ioan A. 2 2014 The generalized retraction methods in fixed point theory for nonself operators. Zbl 1326.47067Rus, Ioan A. 2 2014 Basic problems of the metric fixed point theory and the relevance of a metric fixed point theorem for a multivalued operator. Zbl 1293.47053Petruşel, A.; Rus, I. A.; Şerban, M. A. 2 2014 Some fixed point theorems in terms of two measures of noncompactness. Zbl 1389.47141Precup, Radu; Rus, Ioan A. 1 2014 Heuristic introduction to weakly Picard operator theory. Zbl 1349.47090Rus, Ioan A. 1 2014 A class of functional-integral equations with applications to a bilocal problem. Zbl 1327.45005Petruşel, Adrian; Rus, Ioan A. 1 2014 Some fixed point theorems on Cartesian product in terms of vectorial measures of noncompactness. Zbl 1349.47089Rus, Ioan A.; Şerban, Marcel-Adrian 1 2014 Basic problems of the metric fixed point theory and the relevance of a metric fixed point theorem. Zbl 1313.54108Rus, Ioan A.; Şerban, Marcel-Adrian 6 2013 An abstract point of view on iterative approximation schemes of fixed points for multivalued operators. Zbl 1432.54075Petruşel, Adrian; Rus, Ioan A. 4 2013 The role of equivalent metrics in fixed point theory. Zbl 1278.54044Petruşel, Adrian; Rus, Ioan A.; Şerban, Marcel-Adrian 4 2013 An abstract point of view on iterative approximation of fixed points: impact on the theory of fixed point equations. Zbl 1327.47066Rus, Ioan A. 7 2012 Properties of the solutions of those equations for which the Krasnoselskii iteration converges. Zbl 1275.47126Rus, Ioan A. 5 2012 A Müller’s example to Cauchy problem: an operatorial point of view. Zbl 1278.47053Rus, Ioan A. 2 2012 Ulam stability of the operatorial equations. Zbl 1248.39043Rus, Ioan A. 5 2011 Step method for some integral equations from biomathematics. Zbl 1249.65288Rus, Ioan A.; Serban, Marcel-Adrian; Trif, Damian 2 2011 Fixed point theory for cyclic \(\varphi\)-contractions. Zbl 1191.54042Păcurar, Mădălina; Rus, Ioan A. 67 2010 Ulam stabilities of ordinary differential equations in a Banach space. Zbl 1224.34164Rus, Ioan A. 54 2010 Gronwall Lemma approach to the hyers-Ulam-Rassias stability of an integral equation. Zbl 1185.45015Rus, Ioan A. 7 2010 The theory of a metric fixed point theorem for multivalued operators. Zbl 1225.54026Petruşel, Adrian; Rus, Ioan A. 6 2010 A class of abstract Volterra equations, via weakly Picard operators technique. Zbl 1197.47080Şerban, M. A.; Rus, I. A.; Petruşel, A. 4 2010 Fixed point and interpolation point set of a positive linear operator on \(C(\overline{D})\). Zbl 1240.41069Rus, Ioan A. 1 2010 Operators on infinite dimensional Cartesian product. Zbl 1223.47065Rus, Ioan A.; Şerban, Marcel-Adrian 1 2010 Some nonlinear functional differential and integral equations, via weakly Picard operator theory: a survey. Zbl 1217.47145Rus, Ioan A. 1 2010 Iterates of Stancu operators (via fixed point principles) revisited. Zbl 1250.41013Rus, Ioan A. 1 2010 Kasahara spaces. Zbl 1213.54076Rus, Ioan A. 1 2010 Ulam stability of ordinary differential equations. Zbl 1224.34165Rus, Ioan A. 54 2009 Remarks on Ulam stability of the operatorial equations. Zbl 1204.47071Rus, Ioan A. 50 2009 Gronwall lemmas: ten open problems. Zbl 1223.47064Rus, Ioan A. 9 2009 Data dependence of fixed points for non-self generalized contractions. Zbl 1226.47056Chis-Novac, Adela; Precup, Radu; Rus, Ioan A. 6 2009 On a functional Volterra-Fredholm integral equation, via Picard operators. Zbl 1195.45035Lungu, Nicolaie; Rus, Ioan A. 3 2009 Fixed point theory. Zbl 1171.54034Rus, Ioan A.; Petruşel, Adrian; Petruşel, Gabriela 49 2008 Fixed point theory in partial metric spaces. Zbl 1199.54244Rus, Ion A. 27 2008 The theory of a metrical fixed point theorem: theoretical and applicative relevances. Zbl 1172.54030Rus, Ioan A. 22 2008 Ulam stability of a nonlinear hyperbolic partial differential equation. Zbl 1249.35219Lungu, Nicolaie; Rus, Ioan A. 5 2008 Some generalizations of a Cauchy lemma and applications. Zbl 1224.54104Rus, Ioan A.; Serban, Marcel-Adrian 5 2008 Functional-differential equations with “maxima” via weakly Picard operators theory. Zbl 1194.34121Otrocol, Diana; Rus, Ioan A. 4 2008 Fixed points for operators on generalized metric spaces. Zbl 1160.54030Petruşel, Adrian; Rus, Ioan A.; Şerban, Marcel Adrian 4 2008 Functional-differential equations with maxima of mixed type. Zbl 1162.34052Otrocol, Diana; Rus, Ioan A. 4 2008 Fibre Picard operators on gauge spaces and applications. Zbl 1176.47042Rus, I. A.; Petruşel, A.; Şerban, M. A. 2 2008 Abstract models of step method which imply the convergence of successive approximations. Zbl 1159.47046Rus, Ioan A. 2 2008 Well-posedness in the generalized sense of the fixed point problems for multivalued operators. Zbl 1149.54022Petruşel, Adrian; Rus, Ioan A.; Yao, Jen-Chih 26 2007 Well-posedness of the fixed point problem for multivalued operators. Zbl 1169.47037Petruşel, Adrian; Rus, Ioan A. 10 2007 Picard operators and well-posedness of fixed point problems. Zbl 1164.47060Rus, Ioan A. 6 2007 Fixed point theory for multivalued operators on a set with two metrics. Zbl 1133.47036Petruşel, Adrian; Rus, Ioan A. 6 2007 First order iterative functional-differential equation with parameter. Zbl 1212.47039Egri, Edith; Rus, Ioan A. 4 2007 An integral equation arising from infectious diseases, via Picard operator. Zbl 1164.45303Dobriţoiu, M.; Rus, I. A.; Şerban, M. A. 3 2007 Data dependence of the fixed points in a set with two metrics. Zbl 1136.54028Rus, Ioan A. 3 2007 Fixed point theorems for set-valued \(Y\)-contractions. Zbl 1126.47047Rus, Ioan A.; Petruşel, Adrian; Petruşel, Gabriela 1 2007 Fixed point theorems in ordered \(L\)-spaces. Zbl 1086.47026Petrusel, Adrian; Rus, Ioan A. 99 2006 Weakly Picard operators: equivalent definitions, applications and open problems. Zbl 1111.47048Rus, Ioan A.; Petruşel, Adrian; Şerban, Marcel Adrian 12 2006 Fixed point structure theory. Zbl 1110.47047Rus, Ioan A. 2 2006 Metric space with fixed point property with respect to contractions. Zbl 1174.54386Rus, Ioan A. 1 2006 Boundary value problems for iterative functional-differential equations. Zbl 1164.47400Rus, Ioan A.; Egri, Edith 1 2006 Cyclic representations and fixed points. Zbl 07033212Rus, Ioan A. 15 2005 Weakly Picard operators on a set with two metrics. Zbl 1112.47306Rus, Ioan A.; Mureşan, Anton S.; Mureşan, Viorica 3 2005 Set-theoretic aspects of fixed point theory of multivalued operators: open problems. Zbl 1082.54527Rus, Ioan A. 1 2005 Iterates of Bernstein operators, via contraction principle. Zbl 1056.41004Rus, Ioan A. 18 2004 Fixed points, upper and lower fixed points: abstract Gronwall lemmas. Zbl 1113.54304Rus, Ioan A. 4 2004 Multivalued Picard and weakly Picard operators. Zbl 1091.47047Petruşel, Adrian; Rus, Ioan A. 4 2004 First order functional-differential equations with both advanced and retarded arguments. Zbl 1062.34067Rus, Ioan A.; Darzu-Ilea, Veronica 2 2004 Sequences of operators and fixed points. Zbl 1090.47046Rus, Ioan A. 1 2004 Picard operators and applications. Zbl 1031.47035Rus, Ioan A. 44 2003 Data dependence of the fixed point set of some multivalued weakly Picard operators. Zbl 1055.47047Rus, Ioan A.; Petruşel, Adrian; Sîntămărian, Alina 33 2003 Iterates of a class of discrete linear operators via contraction principle. Zbl 1096.41015Agratini, Octavian; Rus, Ioan A. 10 2003 Strict fixed point theory. Zbl 1070.47519Rus, Ioan A. 6 2003 Iterates of some bivariate approximation process via weakly Picard operators. Zbl 1206.41021Agratini, Octavian; Rus, Ioan A. 2 2003 Fixed point theory 1950–2000. Romanian contributions. Zbl 1005.54037Rus, Ioan A.; Petruşel, Adrian; Petruşel, Gabriela 27 2002 Iterates of Stancu operators, via contraction principle. Zbl 1249.41020Rus, Ioan A. 3 2002 Functional-differential equations of mixed type, via weakly Picard operators. Zbl 1035.34073Rus, Ioan A. 2 2002 Generalized contractions and applications. Zbl 0968.54029Rus, Ioan A. 141 2001 Weakly Picard operators and applications. Zbl 1035.47044Rus, Ioan A. 8 2001 Data dependence of the fixed points set of multivalued weakly Picard operators. Zbl 1027.47053Rus, Ioan A.; Petruşel, Adrian; Sîntămărian, Alina 6 2001 Dynamics on \((P_{cp}(X), H_d)\) generated by a finite family of multi-valued operators on \((X,d)\). Zbl 1011.47043Petruşel, Adrian; Rus, Ioan A. 5 2001 Hyperbolic differential inequalities. Zbl 1020.47052Lungu, N.; Rus, I. A. 2 2001 Fixed points, zeros and surjectivity. Zbl 1027.47513Rus, I. A.; Aldea, F. 1 2000 Data dependence of the fixed points set of multivalued weakly Picard operators in uniform spaces. Zbl 1027.47049Angelov, Vasil G.; Rus, I. A. 1 2000 An abstract point of view in the nonlinear diference equations. Zbl 1084.47525Rus, Ioan A. 5 1999 Fiber Picard operators theorem and applications. Zbl 1027.47515Rus, Ioan A. 4 1999 A fiber generalized contraction theorem and applications. Zbl 1027.47514Rus, Ioan A. 3 1999 Data dependence of the fixed point set of weakly Picard operators. Zbl 1005.54036Rus, Ioan A.; Mureşan, Sorin 6 1998 Differential equations, integral equations and dynamical systems. Zbl 0922.34001Rus, Ioan A. 1 1996 Weakly Picard mappings. Zbl 0787.54045Rus, Ioan A. 13 1993 A functional-differential model for price fluctuations in a single commodity market. Zbl 0830.90010Rus, Ioan A.; Iancu, Crăciun 1 1993 Basic problems of the metric fixed point theory revisited. II. Zbl 0878.47044Rus, Ioan A. 8 1991 A delay integral equation from biomathematics. Zbl 0749.45004Rus, Ioan A. 1 1989 On a theorem of Eisenfeld-Lakshmikantham. Zbl 0511.47041Rus, Ioan A. 1 1983 Generalized phi-contractions. Zbl 0525.54029Rus, Ioan A. 6 1982 An iterative method for the solution of the equation x=f(x,…,x). Zbl 0486.54038Rus, Ioan A. 7 1981 Maps with phi-contractive iterates. Zbl 0471.54028Rus, Ioan A. 1 1980 ...and 10 more Documents all cited Publications top 5 cited Publications all top 5 Cited by 694 Authors 59 Karapınar, Erdal 34 Petruşel, Adrian 24 Wang, Jinrong 23 Samet, Bessem 20 Abbas, Mujahid 20 Benchohra, Mouffak 20 Shahzad, Naseer 18 Abbas, Said 17 Shah, Kamal 15 Berinde, Vasile 14 Kumam, Poom 14 Vetro, Calogero 14 Zada, Akbar 11 Radenovic, Stojan 11 Rus, Ioan A. 11 Sadarangani, Kishin B. 10 Aydi, Hassen 10 Nashine, Hemant Kumar 10 Petruşel, Gabriela 10 Sintunavarat, Wutiphol 10 Vetro, Francesca 10 Zhou, Yong 9 de la Sen, Manuel 9 Jleli, Mohamed 9 Kamran, Tayyab 9 Nazir, Talat 8 Alghamdi, Maryam A. 8 Harjani, Jackie 8 Kadelburg, Zoran 8 Nieto Roig, Juan Jose 8 Rhoades, Billy E. 8 Şerban, Marcel Adrian 8 Turinici, Mihai 8 Yao, Jen-Chih 7 Eshaghi Gordji, Madjid 7 Hussain, Nawab 7 O’Regan, Donal 7 Popa, Dorian 7 Rakočević, Vladimir 7 Singh, Shyam Lal 6 Ali, Arshad 6 Bota, Monica-Felicia 6 Choudhury, Binayak Samadder 6 Jung, Soon-Mo 6 Li, Yongjin 6 Nguyen Van Dung 6 Olatinwo, Memudu Olaposi 6 Păcurar, Mădălina 6 Shatanawi, Wasfi A. 6 Valero, Oscar 5 Abdeljawad, Thabet 5 Alfuraidan, Monther Rashed 5 Brzdęk, Janusz 5 Chifu, Cristian 5 Ivan, Mircea Dumitru 5 Jachymsky, Jacek R. 5 Khojasteh, Farshid 5 Kucche, Kishor D. 5 Li, XueZhu 5 Mihail, Alexandru 5 Saadati, Reza 5 Shukla, Satish 5 Taş, Kenan 4 Agarwal, Ravi P. 4 Ali, Zeeshan 4 Alsulami, Hamed Hamdan 4 Andres, Jan 4 Beg, Ismat 4 Butt, Asma Rashid 4 Chen, Chiming 4 Darwish, Mohamed Abdalla 4 Debnath, Pradip 4 Elsayed, Elsayed Mohammed 4 Fakhar, Majid 4 Fallahi, Kamal 4 Fečkan, Michal 4 Gavrea, Ioan 4 Gürsoy, Faik 4 Kamal, Raj 4 Kanagarajan, Kuppusamy 4 Karakaya, Vatan 4 Khan, Abdul Rahim 4 Khan, Rahmat Ali 4 Lopez, Belen 4 Lungu, Nicolaie 4 Miculescu, Radu 4 Ouahab, Abdelghani 4 Rasa, Ioan 4 Riaz, Usman 4 Samreen, Maria 4 Shikhare, Pallavi U. 4 Soleimani Rad, Ghasem 4 Vaezpour, Seyyed Mansour 4 Vetro, Pasquale 4 Vivek, Devaraj 3 Ali, Basit 3 Amini-Harandi, Alireza 3 Asadi, Mehdi 3 Bandyopadhyay, Chaitali 3 Blouhi, Tayeb ...and 594 more Authors all top 5 Cited in 156 Serials 98 Fixed Point Theory and Applications 42 Abstract and Applied Analysis 33 Nonlinear Analysis. 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