On a class of exponential-type operators and their limit semigroups. - Francesco Altomare; Ioan Rasa (J. Approx. Theory, 2005)

Problem 11149. - Mircea Ivan; Ioan Rasa (Am. Math. Mon., 2005)

A quantitative version of Trotter's approximation theorem. - Elisabetta M. Mangino; Ioan Rasa (J. Approx. Theory, 2007)

Limit with Nested Logs: 11149. - Mircea Ivan; Ioan Rasa; M. A. Prasad (Am. Math. Mon., 2007)

Convergence of iterates of genuine and ultraspherical Durrmeyer operators to the limiting semigroup: C2-estimates. - Heiner Gonska; Margareta Heilmann; Ioan Rasa (J. Approx. Theory, 2009)

Bernstein-type operators which preserve polynomials. - D. Cárdenas-Morales; P. Garrancho; Ioan Rasa (Comput. Math. Appl., 2011)

Gamma-type operators and the Black-Scholes semigroup. - Antonio Attalienti; Rosa Maria Mininni; Ioan Rasa (J. Approx. Theory, 2011)

Hyers-Ulam stability of the linear differential operator with nonconstant coefficients. - Dorian Popa; Ioan Rasa (Appl. Math. Comput., 2012)

The Fréchet functional equation with application to the stability of certain operators. - Dorian Popa; Ioan Rasa (J. Approx. Theory, 2012)

Optimality of piecewise τ-linear interpolating operators. - D. Cárdenas-Morales; P. Garrancho; Ioan Rasa (Appl. Math. Comput., 2013)

A recursive algorithm for Bernstein operators of second kind. - Daniela Inoan; Ioan Rasa (Numer. Algorithms, 2013)

Power series of Beta operators. - Tuncer Acar; Ali Aral; Ioan Rasa (Appl. Math. Comput., 2014)

Approximation properties of Bernstein-Durrmeyer type operators. - D. Cárdenas-Morales; P. Garrancho; Ioan Rasa (Appl. Math. Comput., 2014)

Entropies and Heun functions associated with positive linear operators. - Ioan Rasa (Appl. Math. Comput., 2015)

Systems of nonlinear algebraic equations with unique solution. - Anca Ciurte; Sergiu Nedevschi; Ioan Rasa (Numer. Algorithms, 2015)

New estimates for the differences of positive linear operators. - Ana Maria Acu; Ioan Rasa (Numer. Algorithms, 2016)

A Nice Representation for a Link Between Bernstein-Durrmeyer and Kantorovich Operators. - Margareta Heilmann; Ioan Rasa (ICMC, 2017)

Complete monotonicity of some entropies. - Ioan Rasa (Period. Math. Hung., 2017)

Approximate solutions of the logistic equation and Ulam stability. - Dorian Popa; Ioan Rasa; Adrian Viorel (Appl. Math. Lett., 2018)

Hypergeometric functions and moments of operators. - Ana Maria Acu; Ioan Rasa (CoRR, 2019)

On approximation by some Bernstein-Kantorovich exponential-type polynomials. - Ali Aral; Diana Otrocol; Ioan Rasa (Period. Math. Hung., 2019)

Multivariate weighted kantorovich operators. - Ana Maria Acu; Laura Hodis; Ioan Rasa (Math. Found. Comput., 2020)

Estimates for the differences of positive linear operators and their derivatives. - Ana Maria Acu; Ioan Rasa (Numer. Algorithms, 2020)

Ulam Stability for the Composition of Operators. - Ana Maria Acu; Ioan Rasa (Symmetry, 2020)

A C0-Semigroup of Ulam Unstable Operators. - Ana Maria Acu; Ioan Rasa (Symmetry, 2020)

Ulam Stability of a Second Linear Differential Operator with Nonconstant Coefficients. - Liviu Cadariu; Dorian Popa; Ioan Rasa (Symmetry, 2020)

Information potential for some probability density functions. - Ana Maria Acu; Gülen Bascanbaz Tunca; Ioan Rasa (Appl. Math. Comput., 2021)

Voronovskaya Type Results and operators Fixing two Functions. - Ana Maria Acu; Alexandra-Ioana Maduta; Ioan Rasa (Math. Model. Anal., 2021)

Voronovskaja-Type Quantitative Results for Differences of Positive Linear Operators. - Ana Maria Acu; Gülen Bascanbaz Tunca; Ioan Rasa (Symmetry, 2021)

Aldaz-Kounchev-Render operators and their approximation properties. - Ana Maria Acu; Stefano De Marchi; Ioan Rasa (CoRR, 2022)

Poisson approximation to the binomial distribution: extensions to the convergence of positive operators. - Ana Maria Acu; Margareta Heilmann; Ioan Rasa; Andra Seserman (CoRR, 2022)

Composition and Decomposition of Positive Linear Operators (VIII). - Ana Maria Acu; Ioan Rasa; Andra Seserman (Axioms, 2023)

An asymptotic formula for Aldaz-Kounchev-Render operators on the hypercube. - Ana Maria Acu; Ioan Rasa (CoRR, 2023)

Generalized Kantorovich modifications of positive linear operators. - Ana Maria Acu; Ioan Cristian Buscu; Ioan Rasa (Math. Found. Comput., 2023)

Positive linear operators and exponential functions. - Ana Maria Acu; Ioan Rasa; Andra Seserman (Math. Found. Comput., 2023)

Nonlinear algebraic systems with positive coefficients and positive solutions. - Ana Maria Acu; Ioan Rasa (J. Appl. Math. Comput., 2023)

Asymptotic properties for a general class of Szasz-Mirakjan-Durrmeyer operators. - Ulrich Abel; Ana Maria Acu; Margareta Heilmann; Ioan Rasa (CoRR, 2024)

Commutativity and spectral properties for a general class of Szasz-Mirakjan-Durrmeyer operators. - Ulrich Abel; Ana Maria Acu; Margareta Heilmann; Ioan Rasa (CoRR, 2024)