Posts by ictp

On a certain operator that preserves the sign of a function and of its derivatives

Abstract AuthorsDumitru Ripeanu (Ripianu) Institutul de Calcul Keywords? Paper coordinatesD. Ripeanu (Ripianu), On a certain operator that preserves the sign of a function and of its derivatives. (Romanian) Rev. Anal. Numer. Teoria…

On an operator that retains the appearance of a function

Abstract AuthorsDumitru Ripeanu (Ripianu) Institutul de Calcul Keywords? Paper coordinatesD. Ripeanu, Sur un opérateur qui conserve l’allure d’une fonction. (French) Rev. Anal. Numér. Théorie Approximation 2 (1973), 105–112. PDFhttps://ictp.acad.ro/jnaat/journal/article/view/1973-vol2-art11/Ripeanu About this paperJournalRev. Anal.…

Research on the transportation problem. II

Abstract AuthorsP. Ney Institutul de Calcul Keywords? Paper coordinatesP. Ney, Research on the transportation problem. II, Rev. Anal. Numer. Teoria Aproximaţiei 2 (1973), 201–209. PDFhttps://ictp.acad.ro/ranta-ro-72-74/journal/article/view/35/35 About this paperJournalRev. Anal. Numer. Teoria Aproximaţiei Publisher NameAcademia Republicii…

On a type of compactification

Abstract AuthorsP.A. Petrisor Institutul de Calcul Keywords? Paper coordinatesP.A. Petrişor, Sur un type de compactification, Mathematica (Cluj) 15(38) (1973), 263–287 (in French). PDFhttps://ictp.acad.ro/wp-content/uploads/2025/10/1973-Petrisor-Mathematica.pdf About this paperJournalMathematica Cluj Publisher Namepublished by the…

The best constant in an integral inequality

Abstract AuthorsAlexandru Lupaş Institutul de Calcul Keywords? Paper coordinatesA. Lupaş, The best constant in an integral inequality, Mathematica (Cluj) 15(38) (1973), 219–222. PDFhttps://ictp.acad.ro/wp-content/uploads/2025/10/1973-Lupas-Mathematica.pdf About this paperJournalMathematica Cluj Publisher NameRomanian Academy Publishing House…

An intersection property of the support functions of compact sets in Rn

Abstract AuthorsKramer Horst Institutul de Calcul Keywords? Paper coordinatesH. Kramer, Eine Schnitteigenschaft der Stützfunktionen kompakter Mengen im Rn. (German) Mathematica (Cluj) 15(38) (1973), 57–69. PDFhttps://ictp.acad.ro/wp-content/uploads/2025/10/1973-Kramer-Mathematica.pdf About this paperJournalMathematica Cluj Publisher NameRomanian Academy Publishing House DOIPrint…

Supporting spheres for families of sets in product spaces

Abstract AuthorsKramer Horst Institutul de Calcul Keywords? Paper coordinatesKramer, Horst, Supporting spheres for families of sets in product spaces. Rev. Anal. Numér. Théorie Approximation 2 (1973), 49–53. PDFhttps://ictp.acad.ro/jnaat/journal https://ictp.acad.ro/jnaat/journal/article/view/1973-vol2-art5/Kramer About this paperJournalRev. Anal.…

Approximation theory and imbedding problems

Abstract AuthorsA.B. Nemeth Institutul de Calcul Keywords? Paper coordinatesNémeth, A. B. ,Approximation theory and imbedding problems.Rev. Anal. Numér. Théorie Approximation 2 (1973), 61–67 PDFhttps://ictp.acad.ro/jnaat/journal/article/view/1973-vol2-art7/Nemeth About this paperJournalRev. Anal. Numér. Théorie Approximation Publisher…

Inclusion relations between families of bounded languages

Abstract AuthorsC. Jalobenau Institutul de Calcul Keywords? Paper coordinatesJalobeanu, C. , Inclusion relations between families of bounded languages. (Romanian) Rev. Anal. Numer. Teoria Aproximaţiei 2 (1973), 159–166. PDFhttps://ictp.acad.ro/ranta-ro-72-74/journal/article/view/30/30 About this paperJournalRevue d’analyse numérique et…

On the absolute p-centers of a graph. The stability of the absolute p-centers

Abstract AuthorsIon Horvath Institutul de Calcul Keywords? Paper coordinatesHorvath, Ion, On the absolute p-centers of a graph. The stability of the absolute p-centers. (Romanian) Rev. Anal. Numer. Teoria Aproximaţiei 2(1973), 151–157. PDFhttps://ictp.acad.ro/ranta-ro-72-74/journal/article/view/29/29 About this paperJournalRev.…