Posts by ictp

A boundary value problem related to a partial differential equation

Abstract AuthorsD. Ripianu (Ripeanu) Institutul de Calcul Keywords? Paper coordinatesD. Ripianu (Ripeanu), Un problème aux limites relatif à une équation aux dérivées partielles. (Romanian)Acad. R. P. Romîne Fil. Cluj Stud.…

A minimum problem in the theory of interpolation

Abstract AuthorsD. Ripianu (Ripeanu) Institutul de Calcul Keywords? Paper coordinatesD. Ripianu, O problemă de minimum în teoria interpolației (Romanian) Stud. Cerc. Mat. Cluj, 14 1963 no. 2, 365–397, MR0174908. [A…

On De la Vallée Poussin’s inequality in the case of second-order differential equations

Abstract AuthorsD. Ripianu (Ripeanu) Institutul de Calcul Keywords? Paper coordinatesD. Ripianu (Ripeanu), Asupra inegalităţii lui De la Vallée Poussin în cazul ecuaţiilor diferenţiale de ordinul al doilea (Romanian) Stud. Cerc.…

An interpolation problem in the theory of linear differential equations

Abstract AuthorsD. Ripianu (Ripianu Institutul de Calcul Keywords? Paper coordinatesD. Ripeanu (Ripianu), Un problème d’interpolation dans la théorie des équations différentielles linéaires. (French) Mathematica (Cluj) 7 (30) 1965, 71–127. PDFhttps://ictp.acad.ro/wp-content/uploads/2025/11/1965-Ripianu-Une-probleme-dinterp.pdf About this…

On certain classes of interpolating differential equations in a given interval

Abstract AuthorsD. Ripeanu (Ripianu) Institutul de Calcul Keywords? Paper coordinatesD. Ripeanu (Ripianu), Sur certaines classes d’équations différentielles interpolatoires dans un intervalle donné. (French) Rev. Anal. Numér. Théorie Approximation 3 (1974), no. 2, 215–223. PDFhttps://ictp.acad.ro/jnaat/journal/article/view/1974-vol3-no2-art11/Ripeanu…

An extremal problem for the transfinite diameter of a continuum

Abstract AuthorsT. Mocanu D. Ripeanu Institutul de Calcul Keywords? Paper coordinatesT. Mocanu, D. Ripeanu, An extremal problem for the transfinite diameter of a continuum. Romanian-Finnish Seminar on Complex Analysis (Proc., Bucharest,…

On the functional f(z1)/f′(z2) in the case of typically real functions. II

Abstract AuthorsD.Ripeanu (Ripianu) Institutul de Calcul Keywords? Paper coordinatesD.Ripeanu (Ripianu), Sur la fonctionnelle f(z1)/f′(z2)au cas des fonctions typiquement réelles. II. (French) Mathematica (Cluj), 22(45) (1980), no. 1, 131–165. PDFhttps://ictp.acad.ro/wp-content/uploads/2025/11/Sur-la-fonctionnelle-fz1-f′z2au-cas-des-fonctions-typiquement-reelles.-II.pdf About this paperJournalMathematica Cluj…

On the interpolating second-order differential equations in a given interval

Abstract AuthorsD.Ripeanu (Ripianu) Institutul de Calcul Keywords? Paper coordinatesD. Ripeanu (Ripianu), Sur les équations différentielles du second ordre interpolatoires dans un intervalle donné. (French) [On the interpolating second-order differential equations…

On a third-order partial differential equation

Abstract AuthorsD.V.Ionescu Institutul de Calcul Keywords? Paper coordinatesD.V.Ionescu, Sur une equation aux derivees partieles du troisieme ordre, Bulletin de la Societe Mathematique de France, p. 224-229 PDFhttps://ictp.acad.ro/wp-content/uploads/2025/11/1930-IonescuDVSur-une-eqution-aux-derives-partieles-du-troisieme-ordre.pdf.pdf About this paperJournalBulletin…

On the safety parabola

Abstract AuthorsD.V. Ionescu Institutul de Calcul Keywords? Paper coordinatesD.V. Ionescu, Sur la parabole de sureté, în “Bull. scient. de l’Éc. polyt. de Timişoara”, t. 4 fasc. 3-4, 1931, pp. 192-195.…