Posts by ictp

On the analogue of the Chebyshev method and the method of tangent hyperbolas

Abstract AuthorsB. Janko Institutul de Calcul Keywords? Paper coordinatesB. Jankó, Sur l’analogue de la méthode de Tchebycheff et de la méthode des hyperboles tangents. (French) Mathematica (Cluj) 2 (25) 1960 269–275. PDFhttps://ictp.acad.ro/wp-content/uploads/2025/11/1960-Janko-Sur-lanalogue.pdf About this paperJournalMathematica…

On the analogue of the Chebysheff method and the method of tangent hyperbolas for the approximate solution of nonlinear functional equations

Abstract AuthorsB. Janko Institutul d eCalcul Keywords? Paper coordinatesB. Jankó, Sur l’analogue de la méthode de Tchébycheff et de la méthode des hyperboles tangentes pour la résolution approximative des équations fonctionelles…

On the group relations of a node

Abstract AuthorsGh. Calugareanu Gheorghe Călugăreanu (1902-1976) Keywords? Paper coordinatesGh. Călugăreanu, Sur les relations du groupe d’un nœud, Rev. Roum. Math. Pures et Appl., Tome XIV, no.6, Bucarest, 1969, pp. 753-757.…

The solution of an interval equation

Abstract AuthorsSt. N. Berti Institutul de Calcul Keywords? Paper coordinatesŞt.N. Berţi, The solution of an interval equation, Mathematica (Cluj) 11 (34) 1969 189–194. PDFhttps://ictp.acad.ro/wp-content/uploads/2025/11/1969-Berti-The-solution-of-an-interval-equation.pdf About this paperJournalMathematica Publisher Namepublished by the Romanian Academy Publishing…

Applications of the theory of relations in mathematical logic

Abstract AuthorsSt. N. Berti Institutul de Calcul Keywords? Paper coordinatesŞt.N. Berţi, Applications of the theory of relations in mathematical logic (in Romanian) Stud. Cerc. Mat. 21 1969 3–11. PDFhttps://ictp.acad.ro/wp-content/uploads/2026/10/1969-Berti-St-Cercet-Matem-Tom-21-Bucuresti-Aplicatii-ale-teoriei-relatiilor-in-logica-matematica.pdf About this paperJournalStudii si Cercetari…

The geometry of the relations in the set of real numbers

Abstract AuthorsSt. N. Berti Institutul de Calcul Keywords? Paper coordinatesŞt.N. Berţi, The geometry of the relations in the set of real numbers, Mathematica (Cluj) 11 (34) 1969 29–48. PDFhttps://ictp.acad.ro/wp-content/uploads/2025/11/1969-Berti-The-geometry-of-the-relations-in-the-set-of-real-numbers.pdf About this paperJournalMathematica Publisher Namepublished by…

An analogy in LP space of Ch. J. de la Vallée’s inequality, relative to the polylocal problem

Abstract AuthorsO. Arama Institutul de Calcul Keywords? Paper coordinatesO. Aramă, Un analoques dans l’espace LP de l’inégalité de Ch. J. de la Vallée, relative au problème polylocal. Lucrarea a apărut în…

Non-injective collineations on some sets in Desarguesian projective planes and extension of non-commutative valuations

Abstract AuthorsF. Rado Institutul de Calcul Keywords? Paper coordinatesF. Radó, Non-injective collineations on some sets in Desarguesian projective planes and extension of non-commutative valuations, Aequationes Math. 4 1970 307–321. PDFhttps://ictp.acad.ro/wp-content/uploads/2026/09/1970-Aequationes-Math-Rado-Non-injective-collineations-on-some-sets-in-Desarguesian-projective-planes-and-extension-of-non-commutative-valuations.pdf About this paperJournalAequationes mathematicae…

Reports of Meetings: Seventh International Symposium on Functional Equations

Abstract AuthorsF. Rado Institutul de Calcul Keywords? Paper coordinatesF. Radó, Reports of Meetings: Seventh International Symposium on Functional Equations September 1–13, 1969, Aequationes Math. 4(1970), no. 1-2, 205–257. PDFhttps://ictp.acad.ro/wp-content/uploads/2026/09/1970-Rado-F-Aequationes-Math-Reports-of-Meetings-Seventh-International-Symposium-on-Functional-Equations-205–257.pdf About this paperJournalAequationes mathematicae Publisher…

On a type of interpolation

Abstract AuthorsP. Petrisor Institutul de Calcul Keywords? Paper coordinatesP. Petrişor, Sur un type d’interpolation, Mathematica (Cluj) 12(35) (1970), 189–194. (in French) PDFhttps://ictp.acad.ro/wp-content/uploads/2025/10/1970-Petrisor_Sur_un_type-Mathematica.pdf About this paperJournalMathematica Cluj Publisher Namepublished by the Romanian…