Edit Profile (opens in new tab) Rasa, Ioan Co-Author Distance Author ID: rasa.ioan Published as: Raşa, Ioan; Rasa, Ioan; Raşa, I.; Rasa, I.; Rasa, Ion; Raşa, Ion; Raṣa, I. more...less Homepage: http://users.utcluj.ro/~rasai/ External Links: MGP · ORCID · Google Scholar · ResearchGate Documents Indexed: 265 Publications since 1975, including 2 Books and 10 Additional arXiv Preprints 1 Contribution as Editor Reviewing Activity: 529 Reviews Co-Authors: 68 Co-Authors with 197 Joint Publications 1,069 Co-Co-Authors all top 5 Co-Authors 68 single-authored 36 Acu, Ana Maria 31 Gonska, Heinz Herbert 26 Heilmann, Margareta 20 Popa, Dorian 14 Altomare, Francesco 13 Aral, Ali 10 Pečarić, Josip 8 Inoan, Daniela Ioana 7 Abel, Ulrich 7 Campiti, Michele 7 Leonessa, Vita 7 Mocanu, Gabriela Raluca 6 Acar, Tuncer 6 Attalienti, Antonio 5 Bărar, Adina Elena 5 Nasaireh, Fadel 5 Stănilă, Elena-Dorina 5 Toader, Gheorghe 4 Cárdenas-Morales, Daniel 4 Ciurte, Anca 4 Garrancho, Pedro 4 Nedevschi, Sergiu 4 Piţul, Paula Anamaria 4 Rusu, Maria-Daniela 3 Adell, José Antonio 3 Bascanbaz-Tunca, Gulen 3 Kacsó, Daniela P. 3 Leviatan, Dany 3 Pugna, Georgiana 3 Seserman, Andra 3 Vladislav, Tiberiu 2 Andrica, Dorin 2 Brzdęk, Janusz 2 Buscu, Ioan Cristian 2 Dancs, Madalina 2 de la Cal, Jesús 2 De Marchi, Stefano 2 Gavrea, Ioan 2 Hodiş, Sever 2 Ivan, Mircea Dumitru 2 Măduţa, Alexandra-Ioana 2 Mesaroş, Laura 2 Otrocol, Diana 2 Paşca, Vlad 2 Sándor, József 2 Tacelli, Cristian 1 Alzer, Horst 1 Baias, Alina-Ramona 1 Bardaro, Carlo 1 Baumann, Katharina 1 Blaga, Florina 1 Câmpian, Vasile 1 Cappelletti Montano, Mirella 1 Della Vecchia, Biancamaria 1 Erençin, Ayşegül 1 Hodis, Laura 1 Ivan, Dumitru Mircea 1 Kwong, Man Kam 1 Labsker, L. G. 1 Lupaş, Alexandru 1 Mache, Detlef-Hauke 1 Mangino, Elisabetta M. 1 Mastroianni, Giuseppe 1 Özsaraç, Fırat 1 Stens, Rudolf L. 1 Vinti, Gianluca 1 Viorel, Adrian 1 Xu, Bing all top 5 Serials 24 Mathématica – Revue d’Analyse Numérique et de Théorie de l’Approximation. L’Analyse Numérique et la Théorie de l’Approximation 15 Results in Mathematics 11 Studia Universitatis Babeș-Bolyai. Mathematica 11 Revue d’Analyse Numérique et de Théorie de l’Approximation 11 Mediterranean Journal of Mathematics 9 Positivity 8 Carpathian Journal of Mathematics 6 Journal of Mathematical Analysis and Applications 6 Applied Mathematics and Computation 6 Numerical Functional Analysis and Optimization 6 General Mathematics 6 Annals of the Tiberiu Popoviciu Seminar of Functional Equations, Approximation and Convexity 6 Analysis and Mathematical Physics 5 Journal of Approximation Theory 5 Revista de la Real Academia de Ciencias Exactas, Físicas y Naturales. Serie A: Matemáticas. RACSAM 4 Acta Mathematica Hungarica 4 Numerical Algorithms 4 Preprint. “Babeș-Bolyai” University. Faculty of Mathematics and Physics. Research Seminars 3 Mathematical Inequalities & Applications 3 Journal of Function Spaces 3 Mathematical Foundations of Computing 3 Constructive Mathematical Analysis 2 Periodica Mathematica Hungarica 2 Acta Scientiarum Mathematicarum 2 Studia Scientiarum Mathematicarum Hungarica 2 Aequationes Mathematicae 2 Atti del Seminario Matematico e Fisico dell’Università di Modena 2 Journal of Computational Analysis and Applications 2 Journal of Applied Functional Analysis 2 Applicable Analysis and Discrete Mathematics 2 Banach Journal of Mathematical Analysis 2 Jaen Journal on Approximation 2 Annals of Functional Analysis 1 Applicable Analysis 1 Computers & Mathematics with Applications 1 Ukrainian Mathematical Journal 1 Annales Universitatis Mariae Curie-Skłodowska. Sectio A. Mathematica 1 Archiv der Mathematik 1 Calcolo 1 Conferenze del Seminario di Matematica dell’Università di Bari 1 Czechoslovak Mathematical Journal 1 Journal of Functional Analysis 1 Matematički Vesnik 1 Mathématica – Revue d’Analyse Numérique et de Théorie de l’Approximation. Mathématica 1 Mathematica Slovaca 1 Publications de l’Institut Mathématique. Nouvelle Série 1 Rendiconti del Circolo Matemàtico di Palermo. Serie II 1 Siberian Mathematical Journal 1 Southeast Asian Bulletin of Mathematics 1 Buletinul Științific al Institutului Politehnic Cluj-Napoca. Seria: Electrotehnica-Energetica-Informatica 1 Zeitschrift für Analysis und ihre Anwendungen 1 Approximation Theory and its Applications 1 Buletinul Științific al Institutului Politehnic Cluj-Napoca. Seria: Matematică, Mecanică Aplicată. Construcții de Mașini 1 Applied Mathematics Letters 1 Mathematica Balkanica. New Series 1 Expositiones Mathematicae 1 Nieuw Archief voor Wiskunde. Vierde Serie 1 Filomat 1 Buletinul Academiei de Științe a Republicii Moldova. Matematica 1 Automation, Computers, Applied Mathematics 1 The Ramanujan Journal 1 Abstract and Applied Analysis 1 Taiwanese Journal of Mathematics 1 Journal of Inequalities and Applications 1 JIPAM. Journal of Inequalities in Pure & Applied Mathematics 1 Mathematical Modelling and Analysis 1 Bulletin of the Malaysian Mathematical Sciences Society. Second Series 1 Journal of Applied Mathematics and Computing 1 Fixed Point Theory 1 Miskolc Mathematical Notes 1 Preprint. “Babeș-Bolyai” University. Faculty of Mathematics. Research Seminars 1 De Gruyter Studies in Mathematics 1 Journal of Fixed Point Theory and Applications 1 Journal of Mathematical Inequalities 1 Bollettino dell’Unione Matematica Italiana. Series IX 1 Journal of Numerical Analysis and Approximation Theory 1 Advances in the Theory of Nonlinear Analysis and its Applications 1 Mathematical Analysis and its Applications all top 5 Fields 178 Approximations and expansions (41-XX) 52 Operator theory (47-XX) 51 Real functions (26-XX) 23 Functional analysis (46-XX) 16 Difference and functional equations (39-XX) 15 Probability theory and stochastic processes (60-XX) 14 Numerical analysis (65-XX) 11 Partial differential equations (35-XX) 10 Information and communication theory, circuits (94-XX) 7 Ordinary differential equations (34-XX) 6 Special functions (33-XX) 6 Dynamical systems and ergodic theory (37-XX) 3 Linear and multilinear algebra; matrix theory (15-XX) 3 Measure and integration (28-XX) 2 Combinatorics (05-XX) 2 Biology and other natural sciences (92-XX) 1 General and overarching topics; collections (00-XX) 1 Number theory (11-XX) 1 Potential theory (31-XX) 1 Sequences, series, summability (40-XX) 1 Integral equations (45-XX) 1 Calculus of variations and optimal control; optimization (49-XX) 1 General topology (54-XX) 1 Manifolds and cell complexes (57-XX) 1 Mechanics of particles and systems (70-XX) 1 Game theory, economics, finance, and other social and behavioral sciences (91-XX) 1 Systems theory; control (93-XX) Publications by Year all cited Publications top 5 cited Publications Citations contained in zbMATH Open 175 Publications have been cited 1,510 times in 733 Documents Cited by ▼ Year ▼ Ulam stability of operators. Zbl 1393.39001 Brzdęk, Janusz; Popa, Dorian; Raşa, Ioan; Xu, Bing 95 2018 On the Hyers-Ulam stability of the linear differential equation. Zbl 1222.34069 Popa, Dorian; Raşa, Ioan 90 2011 Bernstein-type operators which preserve polynomials. Zbl 1228.41019 Cárdenas-Morales, D.; Garrancho, P.; Raşa, I. 58 2011 The new forms of Voronovskaya’s theorem in weighted spaces. Zbl 1334.41015 Acar, Tuncer; Aral, Ali; Rasa, Ioan 57 2016 Hyers-Ulam stability of the linear differential operator with nonconstant coefficients. Zbl 1368.34075 Popa, Dorian; Raşa, Ioan 46 2012 Grüss-type and Ostrowski-type inequalities in approximation theory. Zbl 1254.41011 Acu, A. M.; Gonska, H.; Raşa, I. 45 2011 On the generalized Szász-Mirakyan operators. Zbl 1293.41009 Aral, A.; Inoan, D.; Raşa, I. 44 2014 Markov operators, positive semigroups and approximation processes. Zbl 1352.47001 Altomare, Francesco; Cappelletti Montano, Mirella; Leonessa, Vita; Raşa, Ioan 42 2014 On Peano’s form of the Taylor remainder, Voronovskaja’s theorem and the commutator of positive linear operators. Zbl 1123.41012 Gonska, Heiner; Piţul, Paula; Raşa, Ioan 38 2006 General King-type operators. Zbl 1181.41041 Gonska, Heiner; Piţul, Paula; Raşa, Ioan 36 2009 New estimates for the differences of positive linear operators. Zbl 1357.41018 Acu, Ana Maria; Raşa, Ioan 33 2016 Kantorovich operators of order \(k\). Zbl 1236.41023 Gonska, Heiner; Heilmann, Margareta; Raşa, Ioan 30 2011 The limiting semigroup of the Bernstein iterates: degree of convergence. Zbl 1121.41004 Gonska, H.; Raşa, I. 25 2006 Asymptotic formulae via a Korovkin-type result. Zbl 1241.41012 Cárdenas-Morales, Daniel; Garrancho, Pedro; Raşa, Ioan 24 2012 Asymptotic behaviour of differentiated Bernstein polynomials. Zbl 1274.41036 Gonska, Heiner; Raşa, Ioan 22 2009 On genuine Bernstein-Durrmeyer operators. Zbl 1145.41004 Gonska, Heiner; Kacsó, Daniela; Raşa, Ioan 21 2006 Positive linear operators preserving \(\tau\) and \(\tau^2\). Zbl 1463.41046 Acar, Tuncer; Aral, Ali; Raşa, Ioan 20 2019 Remarks on some quantitative Korovkin-type results. Zbl 0821.41022 Gavrea, I.; Raşa, I. 18 1993 The Fréchet functional equation with application to the stability of certain operators. Zbl 1238.39008 Popa, Dorian; Raşa, Ioan 18 2012 Hyers-Ulam stability with respect to gauges. Zbl 1404.34016 Brzdęk, Janusz; Popa, Dorian; Raşa, Ioan 18 2017 A generalization of Kantorovich operators for convex compact subsets. Zbl 1383.41003 Altomare, Francesco; Cappelletti Montano, Mirella; Leonessa, Vita; Raşa, Ioan 16 2017 Entropies and Heun functions associated with positive linear operators. Zbl 1410.41039 Raşa, Ioan 15 2015 The eigenstructure of operators linking the Bernstein and the genuine Bernstein-Durrmeyer operators. Zbl 1295.41021 Gonska, Heiner; Raşa, Ioan; Stănilă, Elena-Dorina 15 2014 A survey on estimates for the differences of positive linear operators. Zbl 1463.41047 Acu, Ana Maria; Hodiş, Sever; Raşa, Ioan 14 2018 On the best constant in Hyers-Ulam stability of some positive linear operators. Zbl 1308.41026 Popa, Dorian; Raşa, Ioan 14 2014 Chebyshev-Grüss-type inequalities via discrete oscillations. Zbl 1305.26040 Gonska, Heiner; Raşa, Ioan; Rusu, Maria-Daniela 14 2014 Lipschitz contractions, unique ergodicity and asymptotics of Markov semigroups. Zbl 1268.47013 Altomare, Francesco; Raşa, Ioan 14 2012 On differences of positive linear operators. Zbl 1150.41012 Gonska, Heiner; Piţul, Paula; Raşa, Ioan 13 2006 Best constant in stability of some positive linear operators. Zbl 1353.39028 Popa, Dorian; Raşa, Ioan 13 2016 \(C_0\)-semigroups and iterates of positive linear operators: asymptotic behaviour. Zbl 1470.41023 Rasa, Ioan 13 2010 Over-iterates of Bernstein-Stancu operators. Zbl 1150.41013 Gonska, Heiner; Piţul, Paula; Raşa, Ioan 12 2007 On differences of linear positive operators. Zbl 1428.41024 Aral, Ali; Inoan, Daniela; Raşa, Ioan 12 2019 The genuine Bernstein-Durrmeyer operators revisited. Zbl 1253.41020 Gonska, Heiner; Kacsó, Daniela; Raşa, Ioan 12 2012 On Bernstein-Schnabl operators on the unit interval. Zbl 1140.41304 Altomare, Francesco; Leonessa, Vita; Raşa, Ioan 11 2008 Approximation properties of Bernstein-Durrmeyer type operators. Zbl 1410.41030 Cárdenas-Morales, D.; Garrancho, P.; Raşa, I. 11 2014 Elliptic differential operators and positive semigroups associated with generalized Kantorovich operators. Zbl 1460.35098 Altomare, Francesco; Cappelletti Montano, Mirella; Leonessa, Vita; Raşa, Ioan 11 2018 Asymptotic behaviour of iterates of positive linear operators. Zbl 1184.41013 Rasa, Ioan 11 2009 On differential operators associated with Markov operators. Zbl 1285.47048 Altomare, Francesco; Cappelletti Montano, Mirella; Leonessa, Vita; Raşa, Ioan 11 2014 A quantitative version of Trotter’s approximation theorem. Zbl 1118.41007 Mangino, Elisabetta M.; Raşa, Ioan 10 2007 Another look at Voronovskaja type formulas. Zbl 1391.41016 Nasaireh, Fadel; Raşa, Ioan 10 2018 Approximation by \(k\)-th order modifications of Szász-Mirakyan operators. Zbl 1389.41016 Acar, Tuncer; Aral, Ali; Raşa, Ioan 10 2016 Eigenstructure and iterates for uniquely ergodic Kantorovich modifications of operators. Zbl 1375.37016 Heilmann, Margareta; Raşa, Ioan 10 2017 Voronovskaya type theorems in weighted spaces. Zbl 1357.41022 Erençin, Ayşegül; Raşa, Ioan 10 2016 On the stability of some classical operators from approximation theory. Zbl 1284.39032 Popa, Dorian; Raşa, Ioan 10 2013 A sharpening of a problem on Bernstein polynomials and convex functions. Zbl 1400.26031 Abel, Ulrich; Raşa, Ioan 10 2018 Inequalities for certain means in two arguments. Zbl 0938.26011 Sándor, J.; Raşa, I. 9 1997 On approximation by some Bernstein-Kantorovich exponential-type polynomials. Zbl 1449.41005 Aral, Ali; Otrocol, Diana; Raşa, Ioan 9 2019 A Nice representation for a link between Baskakov- and Szász-Mirakjan-Durrmeyer operators and their Kantorovich variants. Zbl 1404.41007 Heilmann, Margareta; Raşa, Ioan 9 2019 Qualitative properties of a class of Fleming–Viot operators. Zbl 1101.47028 Campiti, M.; Rasa, I. 8 2004 Voronovskaya type results and operators fixing two functions. Zbl 1500.41005 Acu, Ana Maria; Măduţa, Alexandra-Ioana; Rasa, Ioan 8 2021 Differences of positive linear operators and the second order modulus. Zbl 1249.41014 Gonska, Heiner; Raşa, Ioan 8 2008 Further results for \(k\)th order Kantorovich modification of linking Baskakov type operators. Zbl 1339.41030 Baumann, Katharina; Heilmann, Margareta; Raşa, Ioan 8 2016 \(k\)th order Kantorovich type modification of the operators \(U^{\rho}_n\). Zbl 1358.41017 Heilmann, Margareta; Raşa, Ioan 8 2014 On infinite products of positive linear operators reproducing linear functions. Zbl 1271.41006 Gonska, Heiner; Raşa, Ioan 8 2013 Asymptotic behaviour of differential Bernstein polynomials revisited. Zbl 1212.41057 Gonska, Heiner; Heilmann, Margareta; Rasa, Ioan 8 2010 Remarks on Voronovskaya’s theorem. Zbl 1199.41028 Gonska, Heiner; Raşa, Ioan 8 2008 Overiterated linear operators and asymptotic behaviour of semigroups. Zbl 1179.41021 Attalienti, Antonio; Rasa, Ioan 7 2008 Convexity properties of some entropies. II. Zbl 1429.26016 Raşa, Ioan 7 2019 \(k\)th order Kantorovich modification of linking Baskakov-type operators. Zbl 1337.41010 Heilmann, Margareta; Raşa, Ioan 7 2015 Convexity properties of some entropies. Zbl 1448.94118 Raşa, Ioan 7 2018 On the decomposition of Bernstein operators. Zbl 1315.41010 Heilmann, Margareta; Raşa, Ioan 7 2015 On some operators linking the Bernstein and the genuine Bernstein-Durrmeyer operators. Zbl 1359.41014 Raşa, Ioan; Stǎnilǎ, Elena 7 2014 Approximation properties of Szász-Mirakyan operators preserving exponential functions. Zbl 1436.41012 Aral, Ali; Inoan, Daniela; Raşa, Ioan 6 2019 On some classes of diffusion equations and related approximation problems. Zbl 1077.35026 Altomare, Francesco; Rasa, Ioan 6 2005 Bounds for some entropies and special functions. Zbl 1449.94049 Bărar, Adina; Mocanu, Gabriela Raluca; Raşa, Ioan 6 2018 Generalized Bernstein Kantorovich operators: Voronovskaya type results, convergence in variation. Zbl 07752797 Acu, Ana Maria; Aral, Ali; Raşa, Ioan 6 2022 Information potential for some probability density functions. Zbl 1465.94032 Acu, Ana-Maria; Başcanbaz-Tunca, Gülen; Rasa, Ioan 6 2021 On Markov operators preserving polynomials. Zbl 1320.47035 Altomare, Francesco; Cappelletti Montano, Mirella; Leonessa, Vita; Raşa, Ioan 6 2014 A Voronovskaya estimate with second order modulus of smoothness. Zbl 1212.41016 Gonska, Heiner; Raşa, Ioan 6 2008 Applications of an Ostrowski type inequality. Zbl 1269.26001 Gonska, Heiner; Raşa, Ioan; Rusu, Maria-Daniela 6 2012 On Jessen’s inequality. Zbl 0786.26013 Pečarić, J. E.; Raşa, I. 5 1992 Towards a characterization of a class of differential operators associated with positive projections. Zbl 0917.35042 Altomare, Francesco; Raşa, Ioan 5 1998 Feller semigroups, Bernstein type operators and generalized convexity associated with positive projections. Zbl 0938.41013 Altomare, Francesco; Rasa, Ioan 5 1999 On a class of exponential-type operators and their limit semigroups. Zbl 1076.41010 Altomare, Francesco; Raşa, Ioan 5 2005 Iterated Boolean sums of Bernstein type operators. Zbl 1447.41005 Acar, Tuncer; Aral, Ali; Raşa, Ioan 5 2020 Ulam stability of a successive approximation equation. Zbl 1443.39011 Baias, Alina Ramona; Popa, Dorian; Raşa, Ioan 5 2020 Best constant in Hyers-Ulam stability of some functional equations. Zbl 1349.39055 Popa, Dorian; Raşa, Ioan 5 2014 Systems of nonlinear algebraic equations with unique solution. Zbl 1312.65081 Ciurte, Anca; Nedevschi, Sergiu; Rasa, Ioan 5 2015 Power series of Bernstein operators and approximation of resolvents. Zbl 1259.41033 Raşa, Ioan 5 2012 Čhebyšhev-Grüss-type inequalities revisited. Zbl 1324.26023 Gonska, Heiner; Raşa, Ioan; Rusu, Maria-Daniela 5 2013 \(C_0\)-semigroups associated with uniquely ergodic Kantorovich modifications of operators. Zbl 1395.37003 Heilmann, Margareta; Raşa, Ioan 5 2018 Heun functions related to entropies. Zbl 1416.33031 Bărar, Adina; Mocanu, Gabriela; Raşa, Ioan 5 2019 Korovkin approximation and parabolic functions. Zbl 0783.41019 Rasa, I. 4 1991 Classes of convex functions associated with Bernstein operators of second kind. Zbl 1111.26014 Rasa, Ioan 4 2006 A note on Jessen’s inequality. Zbl 0661.26008 Raşa, I. 4 1988 Asymptotic behaviour of certain semigroups generated by differential operators. Zbl 1181.47047 Rasa, Ioan 4 2009 The Jensen inequality: Refinements and applications. Zbl 0585.26012 Andrica, D.; Raşa, I. 4 1985 Voronovskaya type results for special sequences of operators. Zbl 1483.41005 Acu, Ana-Maria; Dancs, Madalina; Heilmann, Margareta; Paşca, Vlad; Rasa, Ioan 4 2022 Iterates of convolution-type operators. Zbl 1465.41006 Acu, Ana-Maria; Heilmann, Margareta; Rasa, Ioan 4 2021 Approximate solutions of the logistic equation and Ulam stability. Zbl 1402.39016 Popa, Dorian; Rasa, Ioan; Viorel, Adrian 4 2018 Steklov averages as positive linear operators. Zbl 1474.41067 Popa, Dorian; Raşa, Ioan 4 2016 An algorithm for solving some nonlinear systems with applications to extremum problems. Zbl 1250.65071 Ciurte, Anca; Nedevschi, Sergiu; Rasa, Ioan 4 2012 A nice representation for a link between Bernstein-Durrmeyer and Kantorovich operators. Zbl 1514.41018 Heilmann, Margareta; Raşa, Ioan 4 2017 Convergence of iterates of genuine and ultraspherical Durrmeyer operators to the limiting semigroup: \(C^{2}\)-estimates. Zbl 1184.41005 Gonska, Heiner; Heilmann, Margareta; Raşa, Ioan 4 2009 Beta operators with Jacobi weights. Zbl 1416.41025 Gonska, Heiner; Raşa, Ioan; Stănilă, Elena-Dorina 4 2014 Altomare projections and Lototsky-Schnabl operators. Zbl 0818.41018 Rasa, Ioan 3 1994 On Soardi’s Berstein operators of second kind. Zbl 1022.41019 Raşa, Ioan 3 2000 A Voronovskaya-type theorem. Zbl 1022.41018 Ivan, Mircea; Raşa, Ioan 3 2001 Feller semigroups, elliptic operators and Altomare projections. Zbl 1019.47035 Rasa, Ioan 3 2002 Lototsky-Schnabl operators on the unit interval. Zbl 0951.41009 Adell, José A.; de la Cal, Jesús; Raşa, Ioan 3 1999 Aldaz-Kounchev-Render operators and their approximation properties. Zbl 1512.41016 Acu, Ana-Maria; De Marchi, Stefano; Raşa, Ioan 3 2023 Generalized Kantorovich modifications of positive linear operators. Zbl 07723650 Acu, Ana-Maria; Buscu, Ioan Cristian; Rasa, Ioan 3 2023 New properties of operators preserving exponentials. Zbl 1524.41050 Acu, Ana-Maria; Aral, Ali; Rasa, Ioan 2 2023 Poisson approximation to the binomial distribution: extensions to the convergence of positive operators. Zbl 07762401 Acu, Ana-Maria; Heilmann, Margareta; Rasa, Ioan; Seserman, Andra 2 2023 A discrete probability distribution and some applications. Zbl 1505.60018 Acu, Ana-Maria; Rasa, Ioan 1 2023 On the modification of Mellin convolution operator and its associated information potential. Zbl 1520.41006 Özsaraç, Firat; Acu, Ana Maria; Aral, Ali; Raşa, Ioan 1 2023 Generalized Bernstein Kantorovich operators: Voronovskaya type results, convergence in variation. Zbl 07752797 Acu, Ana Maria; Aral, Ali; Raşa, Ioan 6 2022 Voronovskaya type results for special sequences of operators. Zbl 1483.41005 Acu, Ana-Maria; Dancs, Madalina; Heilmann, Margareta; Paşca, Vlad; Rasa, Ioan 4 2022 Relations between the Bernstein polynomials and \(q\)-monotone functions. Zbl 1528.26021 Abel, Ulrich; Leviatan, Dany; Raşa, Ioan 2 2022 A Bernstein-Schnabl type operator: applications to difference equations. Zbl 1513.41016 Acu, Ana-Maria; Dancs, Madalina; Heilmann, Margareta; Paşca, Vlad; Raşa, Ioan 1 2022 Functional equations related to Appell polynomials and Heun functions. Zbl 1511.39018 Acu, Ana-Maria; Rasa, Ioan 1 2022 Voronovskaya type results and operators fixing two functions. Zbl 1500.41005 Acu, Ana Maria; Măduţa, Alexandra-Ioana; Rasa, Ioan 8 2021 Information potential for some probability density functions. Zbl 1465.94032 Acu, Ana-Maria; Başcanbaz-Tunca, Gülen; Rasa, Ioan 6 2021 Iterates of convolution-type operators. Zbl 1465.41006 Acu, Ana-Maria; Heilmann, Margareta; Rasa, Ioan 4 2021 A sequence of Appell polynomials and the associated Jakimovski-Leviatan operators. Zbl 1473.41004 Acu, Ana-Maria; Buscu, Ioan Cristian; Rasa, Ioan 3 2021 Bounds for indices of coincidence and entropies. Zbl 1466.94012 Acu, Ana Maria; Başcanbaz-Tunca, Gülen; Raşa, Ioan 2 2021 Iterates and invariant measures for Markov operators. Zbl 1484.41010 Acu, Ana-Maria; Rasa, Ioan 2 2021 Eigenstructure and iterates for uniquely ergodic Kantorovich modifications of operators. II. Zbl 1490.41012 Acu, Ana-Maria; Heilmann, Margareta; Rasa, Ioan 2 2021 Differences of positive linear operators on simplices. Zbl 1527.41004 Acu, Ana-Maria; Başcanbaz-Tunca, Gülen; Rasa, Ioan 1 2021 On the composition and decomposition of positive linear operators (VII). Zbl 1513.41017 Acu, Ana Maria; Raşa, Ioan 1 2021 Heun equations and combinatorial identities. Zbl 1488.33074 Barar, Adina; Mocanu, Gabriela; Raşa, Ioan 1 2021 Iterated Boolean sums of Bernstein type operators. Zbl 1447.41005 Acar, Tuncer; Aral, Ali; Raşa, Ioan 5 2020 Ulam stability of a successive approximation equation. Zbl 1443.39011 Baias, Alina Ramona; Popa, Dorian; Raşa, Ioan 5 2020 Estimates for the differences of positive linear operators and their derivatives. Zbl 1448.41018 Acu, Ana-Maria; Raşa, Ioan 2 2020 Bounds for solutions of linear differential equations and Ulam stability. Zbl 1474.34069 Blaga, Florina; Mesaroş, Laura; Popa, Dorian; Pugna, Georgiana; Raşa, Ioan 2 2020 Discrete operators associated with linking operators. Zbl 1459.41011 Heilmann, Margareta; Nasaireh, Fadel; Raşa, Ioan 1 2020 Strong converse results for linking operators and convex functions. Zbl 1459.41008 Acu, Ana-Maria; Heilmann, Margareta; Rasa, Ioan 1 2020 Linking Baskakov type operators. Zbl 1460.41003 Acu, Ana Maria; Heilmann, Margareta; Raşa, Ioan 1 2020 Multivariate weighted Kantorovich operators. Zbl 1503.41014 Acu, Ana-Maria; Hodis, Laura; Rasa, Ioan 1 2020 Positive linear operators preserving \(\tau\) and \(\tau^2\). Zbl 1463.41046 Acar, Tuncer; Aral, Ali; Raşa, Ioan 20 2019 On differences of linear positive operators. Zbl 1428.41024 Aral, Ali; Inoan, Daniela; Raşa, Ioan 12 2019 On approximation by some Bernstein-Kantorovich exponential-type polynomials. Zbl 1449.41005 Aral, Ali; Otrocol, Diana; Raşa, Ioan 9 2019 A Nice representation for a link between Baskakov- and Szász-Mirakjan-Durrmeyer operators and their Kantorovich variants. Zbl 1404.41007 Heilmann, Margareta; Raşa, Ioan 9 2019 Convexity properties of some entropies. II. Zbl 1429.26016 Raşa, Ioan 7 2019 Approximation properties of Szász-Mirakyan operators preserving exponential functions. Zbl 1436.41012 Aral, Ali; Inoan, Daniela; Raşa, Ioan 6 2019 Heun functions related to entropies. Zbl 1416.33031 Bărar, Adina; Mocanu, Gabriela; Raşa, Ioan 5 2019 Ulam stability of operators. Zbl 1393.39001 Brzdęk, Janusz; Popa, Dorian; Raşa, Ioan; Xu, Bing 95 2018 A survey on estimates for the differences of positive linear operators. Zbl 1463.41047 Acu, Ana Maria; Hodiş, Sever; Raşa, Ioan 14 2018 Elliptic differential operators and positive semigroups associated with generalized Kantorovich operators. Zbl 1460.35098 Altomare, Francesco; Cappelletti Montano, Mirella; Leonessa, Vita; Raşa, Ioan 11 2018 Another look at Voronovskaja type formulas. Zbl 1391.41016 Nasaireh, Fadel; Raşa, Ioan 10 2018 A sharpening of a problem on Bernstein polynomials and convex functions. Zbl 1400.26031 Abel, Ulrich; Raşa, Ioan 10 2018 Convexity properties of some entropies. Zbl 1448.94118 Raşa, Ioan 7 2018 Bounds for some entropies and special functions. Zbl 1449.94049 Bărar, Adina; Mocanu, Gabriela Raluca; Raşa, Ioan 6 2018 \(C_0\)-semigroups associated with uniquely ergodic Kantorovich modifications of operators. Zbl 1395.37003 Heilmann, Margareta; Raşa, Ioan 5 2018 Approximate solutions of the logistic equation and Ulam stability. Zbl 1402.39016 Popa, Dorian; Rasa, Ioan; Viorel, Adrian 4 2018 Beta and related operators revisited. Zbl 1445.41015 Heilmann, Margareta; Nasaireh, Fadel; Raşa, Ioan 3 2018 On Ulam stability of the second order linear differential equation. Zbl 1412.34175 Popa, Dorian; Pugna, Georgiana; Raşa, Ioan 1 2018 Hyers-Ulam stability of the Laplace operator. Zbl 1388.39018 Popa, Dorian; Raşa, Ioan 1 2018 Convergence properties of nets of operators. Zbl 1382.41019 Nasaireh, Fadel; Popa, Dorian; Rasa, Ioan 1 2018 Smoothness and shape preserving properties of Bernstein semigroup. Zbl 1482.47082 Hodiş, Sever; Mesaroş, Laura; Raşa, Ioan 1 2018 Hyers-Ulam stability with respect to gauges. Zbl 1404.34016 Brzdęk, Janusz; Popa, Dorian; Raşa, Ioan 18 2017 A generalization of Kantorovich operators for convex compact subsets. Zbl 1383.41003 Altomare, Francesco; Cappelletti Montano, Mirella; Leonessa, Vita; Raşa, Ioan 16 2017 Eigenstructure and iterates for uniquely ergodic Kantorovich modifications of operators. Zbl 1375.37016 Heilmann, Margareta; Raşa, Ioan 10 2017 A nice representation for a link between Bernstein-Durrmeyer and Kantorovich operators. Zbl 1514.41018 Heilmann, Margareta; Raşa, Ioan 4 2017 Complete monotonicity of some entropies. Zbl 1399.94057 Raşa, Ioan 2 2017 Systems of nonlinear algebraic equations with positive solutions. Zbl 1372.65145 Ciurte, Anca; Nedevschi, Sergiu; Rasa, Ioan 1 2017 Differential operators and approximation processes generated by Markov operators. Zbl 1441.47014 Altomare, F.; Cappelletti Montano, M.; Leonessa, V.; Raşa, I. 1 2017 On the composition and decomposition of positive linear operators (V). Zbl 1379.41022 Gonska, Heiner; Raşa, Ioan 1 2017 The new forms of Voronovskaya’s theorem in weighted spaces. Zbl 1334.41015 Acar, Tuncer; Aral, Ali; Rasa, Ioan 57 2016 New estimates for the differences of positive linear operators. Zbl 1357.41018 Acu, Ana Maria; Raşa, Ioan 33 2016 Best constant in stability of some positive linear operators. Zbl 1353.39028 Popa, Dorian; Raşa, Ioan 13 2016 Approximation by \(k\)-th order modifications of Szász-Mirakyan operators. Zbl 1389.41016 Acar, Tuncer; Aral, Ali; Raşa, Ioan 10 2016 Voronovskaya type theorems in weighted spaces. Zbl 1357.41022 Erençin, Ayşegül; Raşa, Ioan 10 2016 Further results for \(k\)th order Kantorovich modification of linking Baskakov type operators. Zbl 1339.41030 Baumann, Katharina; Heilmann, Margareta; Raşa, Ioan 8 2016 Steklov averages as positive linear operators. Zbl 1474.41067 Popa, Dorian; Raşa, Ioan 4 2016 Eigenstructure of the genuine Beta operators of Lupaş and Mühlbach. Zbl 1413.65095 Gonska, Heiner; Heilmann, Margareta; Raşa, Ioan 3 2016 \(C_0\)-semigroups associated with Markov operators. Zbl 1337.47060 Mocanu, Gabriela; Raşa, Ioan 1 2016 Entropies and Heun functions associated with positive linear operators. Zbl 1410.41039 Raşa, Ioan 15 2015 \(k\)th order Kantorovich modification of linking Baskakov-type operators. Zbl 1337.41010 Heilmann, Margareta; Raşa, Ioan 7 2015 On the decomposition of Bernstein operators. Zbl 1315.41010 Heilmann, Margareta; Raşa, Ioan 7 2015 Systems of nonlinear algebraic equations with unique solution. Zbl 1312.65081 Ciurte, Anca; Nedevschi, Sergiu; Rasa, Ioan 5 2015 Power series of the operators \(U_n^\varrho\). Zbl 1318.41006 Gonska, Heiner; Raşa, Ioan; Stănilă, Elena Dorina 1 2015 On the generalized Szász-Mirakyan operators. Zbl 1293.41009 Aral, A.; Inoan, D.; Raşa, I. 44 2014 Markov operators, positive semigroups and approximation processes. Zbl 1352.47001 Altomare, Francesco; Cappelletti Montano, Mirella; Leonessa, Vita; Raşa, Ioan 42 2014 The eigenstructure of operators linking the Bernstein and the genuine Bernstein-Durrmeyer operators. Zbl 1295.41021 Gonska, Heiner; Raşa, Ioan; Stănilă, Elena-Dorina 15 2014 On the best constant in Hyers-Ulam stability of some positive linear operators. Zbl 1308.41026 Popa, Dorian; Raşa, Ioan 14 2014 Chebyshev-Grüss-type inequalities via discrete oscillations. Zbl 1305.26040 Gonska, Heiner; Raşa, Ioan; Rusu, Maria-Daniela 14 2014 Approximation properties of Bernstein-Durrmeyer type operators. Zbl 1410.41030 Cárdenas-Morales, D.; Garrancho, P.; Raşa, I. 11 2014 On differential operators associated with Markov operators. Zbl 1285.47048 Altomare, Francesco; Cappelletti Montano, Mirella; Leonessa, Vita; Raşa, Ioan 11 2014 \(k\)th order Kantorovich type modification of the operators \(U^{\rho}_n\). Zbl 1358.41017 Heilmann, Margareta; Raşa, Ioan 8 2014 On some operators linking the Bernstein and the genuine Bernstein-Durrmeyer operators. Zbl 1359.41014 Raşa, Ioan; Stǎnilǎ, Elena 7 2014 On Markov operators preserving polynomials. Zbl 1320.47035 Altomare, Francesco; Cappelletti Montano, Mirella; Leonessa, Vita; Raşa, Ioan 6 2014 Best constant in Hyers-Ulam stability of some functional equations. Zbl 1349.39055 Popa, Dorian; Raşa, Ioan 5 2014 Beta operators with Jacobi weights. Zbl 1416.41025 Gonska, Heiner; Raşa, Ioan; Stănilă, Elena-Dorina 4 2014 Lagrange-type operators associated with \(U_n^{\varrho}\). Zbl 1349.41040 Gonska, Heiner; Raşa, Ioan; Stănilă, Elena-Dorina 3 2014 Power series of Beta operators. Zbl 1338.41010 Acar, Tuncer; Aral, Ali; Rasa, Ioan 2 2014 Hyers-Ulam stability of some differential equations and differential operators. Zbl 1320.34083 Popa, Dorian; Raşa, Ioan 2 2014 Complete monotonicity and limit of a generalized Euler sequence. Zbl 1308.40002 Popa, Dorian; Raşa, Ioan 1 2014 The eigenstructure of some positive linear operators. Zbl 1389.41027 Attalienti, Antonio; Raşa, Ioan 1 2014 On the stability of some classical operators from approximation theory. Zbl 1284.39032 Popa, Dorian; Raşa, Ioan 10 2013 On infinite products of positive linear operators reproducing linear functions. Zbl 1271.41006 Gonska, Heiner; Raşa, Ioan 8 2013 Čhebyšhev-Grüss-type inequalities revisited. Zbl 1324.26023 Gonska, Heiner; Raşa, Ioan; Rusu, Maria-Daniela 5 2013 On the sequence of composite Bernstein operators (Sur la suite des opérateurs Bernstein composés). Zbl 1349.41039 Gonska, Heiner; Raşa, Ioan 2 2013 A recursive algorithm for Bernstein operators of second kind. Zbl 1283.65012 Inoan, Daniela; Raşa, Ioan 2 2013 Optimality of piecewise image-linear interpolating operators. Zbl 1295.41019 Cárdenas-Morales, D.; Garrancho, P.; Raşa, I. 1 2013 Hyers-Ulam stability of the linear differential operator with nonconstant coefficients. Zbl 1368.34075 Popa, Dorian; Raşa, Ioan 46 2012 Asymptotic formulae via a Korovkin-type result. Zbl 1241.41012 Cárdenas-Morales, Daniel; Garrancho, Pedro; Raşa, Ioan 24 2012 The Fréchet functional equation with application to the stability of certain operators. Zbl 1238.39008 Popa, Dorian; Raşa, Ioan 18 2012 Lipschitz contractions, unique ergodicity and asymptotics of Markov semigroups. Zbl 1268.47013 Altomare, Francesco; Raşa, Ioan 14 2012 The genuine Bernstein-Durrmeyer operators revisited. Zbl 1253.41020 Gonska, Heiner; Kacsó, Daniela; Raşa, Ioan 12 2012 ...and 75 more Documents all cited Publications top 5 cited Publications all top 5 Cited by 589 Authors 96 Rasa, Ioan 56 Acu, Ana Maria 38 Gupta, Vijay 29 Aral, Ali 24 Acar, Tuncer 22 Heilmann, Margareta 22 Onitsuka, Masakazu 19 Agrawal, Purshottam Narain 18 Popa, Dorian 17 Abel, Ulrich 16 Jung, Soon-Mo 16 Kajla, Arun 16 Mursaleen, Mohammad 15 Altomare, Francesco 15 Brzdęk, Janusz 14 Costarelli, Danilo 13 Vinti, Gianluca 12 Leonessa, Vita 12 Mishra, Vishnu Narayan 12 Tachev, Gancho T. 11 Bardaro, Carlo 11 Gonska, Heinz Herbert 11 Mantellini, Ilaria 10 Anderson, Douglas Robert 10 Deo, Naokant 10 Gavrea, Ioan 10 Ivan, Mircea Dumitru 10 Wang, Jinrong 9 Campiti, Michele 9 Cárdenas-Morales, Daniel 9 Dragičević, Davor 9 Păltănea, Radu 8 Birou, Marius Mihai 8 Khan, Asif 7 Bascanbaz-Tunca, Gulen 7 Dragomir, Sever Silvestru 7 El-hady, El-sayed 7 Garrancho, Pedro 7 Popa, Dumitru 6 Ansari, Khursheed Jamal 6 Baias, Alina-Ramona 6 Chu, Yuming 6 Ciepliński, Krzysztof 6 Draganov, Borislav R. 6 El-Fassi, Iz-Iddine 6 Holhoş, Adrian 6 Khodaei, Hamid 6 Mohiuddine, Syed Abdul 6 Shen, Yonghong 6 Xu, Tianzhou 6 Zada, Akbar 5 Abbas, Zaheer 5 Agratini, Octavian 5 Alotaibi, Abdullah M. 5 Angeloni, Laura 5 Cai, Qingbo 5 Erençin, Ayşegül 5 Inoan, Daniela Ioana 5 Komisarski, Andrzej 5 Leviatan, Dany 5 Mahmudov, Nazim Idrisoglu 5 Ozarslan, Mehmet Ali 5 Qasim, Mohd 5 Radu, Voichiţa Adriana 5 Rassias, Themistocles Michael 5 Tacelli, Cristian 5 Usta, Fuat 4 Adell, José Antonio 4 Backes, Lucas H. 4 Çekım, Bayram 4 Çetin, Nursel 4 Finta, Zoltán 4 Gal, Sorin Gheorghe 4 Gavrea, Bogdan I. 4 Ịçöz, Gürhan 4 İnce İlarslan, Hatice Gül 4 Kaskasem, Prondanai 4 Klin-Eam, Chakkrid 4 Li, Yongjin 4 Mangino, Elisabetta M. 4 Marian, Daniela 4 Miclăuş, Dan 4 Mocanu, Gabriela Raluca 4 Park, Choonkil 4 Patel, Prashantkumar Gordhanbhai 4 Rajba, Teresa 4 Rao, Nadeem 4 Rassias, Michael Th. 4 Roh, Jaiok 4 Sucu, Sezgin 4 Ulusoy, Gulsum 4 Wang, Chun 4 Xu, Xiaowei 4 Yilmaz, Övgü Gürel 3 Abdollahpour, Mohammad Reza 3 Agrawal, Deepika 3 Agrawal, Gunjan 3 Alagoz, Osman 3 Albanese, Angela Anna 3 Alghamdi, Mohammed Ali ...and 489 more Authors all top 5 Cited in 152 Serials 68 Results in Mathematics 38 Journal of Mathematical Analysis and Applications 36 Applied Mathematics and Computation 30 Mediterranean Journal of Mathematics 26 Revista de la Real Academia de Ciencias Exactas, Físicas y Naturales. 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Second Series 1 Jnanabha 1 Kyungpook Mathematical Journal 1 Mathematische Annalen 1 Memoirs of the American Mathematical Society 1 Rendiconti del Seminario Matemàtico e Fisico di Milano 1 Siberian Mathematical Journal 1 Theoretical Computer Science 1 Tokyo Journal of Mathematics 1 Zeitschrift für Analysis und ihre Anwendungen 1 Bulletin of the Korean Mathematical Society 1 Note di Matematica 1 Acta Mathematica Hungarica 1 Acta Applicandae Mathematicae 1 Computer Aided Geometric Design 1 Constructive Approximation ...and 52 more Serials all top 5 Cited in 44 Fields 448 Approximations and expansions (41-XX) 127 Difference and functional equations (39-XX) 106 Operator theory (47-XX) 94 Real functions (26-XX) 87 Ordinary differential equations (34-XX) 28 Numerical analysis (65-XX) 26 Functional analysis (46-XX) 25 Partial differential equations (35-XX) 24 Special functions (33-XX) 20 Dynamical systems and ergodic theory (37-XX) 20 Probability theory and stochastic processes (60-XX) 19 Information and communication theory, circuits (94-XX) 15 Functions of a complex variable (30-XX) 11 Integral equations (45-XX) 9 Sequences, series, summability (40-XX) 7 Integral transforms, operational calculus (44-XX) 7 Biology and other natural sciences (92-XX) 6 Combinatorics (05-XX) 6 Harmonic analysis on Euclidean spaces (42-XX) 5 General topology (54-XX) 4 Number theory (11-XX) 4 Statistics (62-XX) 3 Linear and multilinear algebra; matrix theory (15-XX) 3 Group theory and generalizations (20-XX) 3 Convex and discrete geometry (52-XX) 3 Systems theory; control (93-XX) 2 Order, lattices, ordered algebraic structures (06-XX) 2 Topological groups, Lie groups (22-XX) 2 Potential theory (31-XX) 2 Computer science (68-XX) 2 Operations research, mathematical programming (90-XX) 1 History and biography (01-XX) 1 Algebraic geometry (14-XX) 1 Associative rings and algebras (16-XX) 1 Category theory; homological algebra (18-XX) 1 \(K\)-theory (19-XX) 1 Measure and integration (28-XX) 1 Several complex variables and analytic spaces (32-XX) 1 Abstract harmonic analysis (43-XX) 1 Algebraic topology (55-XX) 1 Mechanics of particles and systems (70-XX) 1 Statistical mechanics, structure of matter (82-XX) 1 Game theory, economics, finance, and other social and behavioral sciences (91-XX) 1 Mathematics education (97-XX) Citations by Year