On a generalization of the notion of convexity
Abstract AuthorsE. Moldovan (Popoviciu) Institutul de Calcul Keywords? Paper coordinatesE. Moldovan (Popoviciu), Asupra unei generalizări a noțiunii de convexitate. Studii și cercetări…
works
About Lobachevsky-Bolyai’s cones and conics
Abstract AuthorsE. Gergely (Institute of Numerical Analysis) Eugen Gergely (1896-1974) Keywords? Paper coordinatesE. Gergely, Despre conurile și conicele lui Lobacevschi-Bolyai. Buletin…
Surface classification based on intrinsic geometry
Abstract AuthorsE. Gergely Institutul de Calcul Keywords? Paper coordinatesE. Gergely, Clasificarea suprafețelor bazată pe geometria intrinsecă. Comunicările Acad. R.P.R., tom. V,…
The geometry of convex surfaces and their connection to differential geometry
Abstract AuthorsE. Gergely (Institute of Numerical Institute) Eugen Gergely (1896-1974) Keywords? Paper coordinatesE. Gergely, Geometria suprafețelor convexe și legătura lor cu…
Elementary geometry of the Lobachevsky – Bolyai – plane straight line series
Abstract AuthorsE. Gergely Institutul de Calcul Keywords? Paper coordinatesE. Gergely, A Lobacsevszkij – Bolyai – sik egyenes sorajnak elemi geometriaja. A…
About univalent domains
Abstract AuthorsGh. Călugăreanu Gheorghe Călugăreanu (1902-1976) Keywords? Paper coordinatesGh. Călugăreanu, Despre domeniile univalente, Buletin ştiinţific, Secţia de Ştiinţe Matematice şi Fizice,…
Representation of equations with 4 variables using the rhomboid nomogram
Abstract AuthorsL. Bal Institutul de Calcul F. Rado Institutul de Calcul E. Gergely Institutul de Calcul D.V. Ionescu Institutul de…
Separation of variables in nomography
Abstract AuthorsL. Bal Institutul de Calcul F. Radó Institutul de Calcul Keywords? Paper coordinatesL. Bal, F. Radó, Separarea variabilelor în nomografie.…
Two theorems regarding separation of variables for equations with five variables
Abstract AuthorsL. Bal (Institute of Numerical Analysis) Lascu Bal (1915-1998) F. Radó (Institute of Numerical Analysis) Francisc Radó (1921-1990) Keywords?…
From the activity of the institutes and research groups of the Cluj Branch of the R.P.R. Academy
Abstract AuthorsE. Moldovan (Popoviciu) (Mathematics Section of the Cluj Branch of the R.P.R. Academy) Elena Popoviciu (1924-2009) Keywordsresearch activity report;…