Stancu, D. D. A study of the remainder in an approximation formula using a Favard-Szasz type operator. (English) Zbl 0488.41021 Stud. Univ. Babes-Bolyai, Math. 25, No. 4, 70-76 (1980). MSC: 41A36 41A25 47A99 PDF BibTeX XML Cite \textit{D. D. Stancu}, Stud. Univ. Babeş-Bolyai, Math. 25, No. 4, 70--76 (1980; Zbl 0488.41021)
Bitay, L. Sur la torsion des courbes qui sont tracees sur une surface. (French) Zbl 0475.53001 Stud. Univ. Babes-Bolyai, Math. 25, No. 4, 52-54 (1980). MSC: 53A04 53A05 PDF BibTeX XML Cite \textit{L. Bitay}, Stud. Univ. Babeş-Bolyai, Math. 25, No. 4, 52--54 (1980; Zbl 0475.53001)
Nemeth, A. B. Nonlinear operators that transform a wedge. (English) Zbl 0474.47027 Stud. Univ. Babes-Bolyai, Math. 25, No. 4, 55-69 (1980). MSC: 47H07 65J15 46A40 46G05 PDF BibTeX XML Cite \textit{A. B. Nemeth}, Stud. Univ. Babeş-Bolyai, Math. 25, No. 4, 55--69 (1980; Zbl 0474.47027)
Rus, Ioan A. Maps with phi-contractive iterates. (Romanian) Zbl 0471.54028 Stud. Univ. Babes-Bolyai, Math. 25, No. 4, 47-51 (1980). MSC: 54H25 PDF BibTeX XML Cite \textit{I. A. Rus}, Stud. Univ. Babeş-Bolyai, Math. 25, No. 4, 47--51 (1980; Zbl 0471.54028)
Manole, C. On the approximation of functions of two and several variables by positive linear operators. (Romanian) Zbl 0468.41014 Stud. Univ. Babes-Bolyai, Math. 25, No. 4, 31-38 (1980). MSC: 41A36 PDF BibTeX XML Cite \textit{C. Manole}, Stud. Univ. Babeş-Bolyai, Math. 25, No. 4, 31--38 (1980; Zbl 0468.41014)
Alicu, Mira-Cristiana; Mark, Otilia Some properties of the fixed points set for multifunctions. (English) Zbl 0467.54029 Stud. Univ. Babes-Bolyai, Math. 25, No. 4, 77-79 (1980). MSC: 54A25 54C60 PDF BibTeX XML Cite \textit{M.-C. Alicu} and \textit{O. Mark}, Stud. Univ. Babeş-Bolyai, Math. 25, No. 4, 77--79 (1980; Zbl 0467.54029)
Nag, S. K.; Datta, N. Flow of a dusty gas in a rotating channel. (English) Zbl 0466.76108 Stud. Univ. Babes-Bolyai, Math. 25, No. 4, 11-23 (1980). MSC: 76U05 76T99 76V05 PDF BibTeX XML Cite \textit{S. K. Nag} and \textit{N. Datta}, Stud. Univ. Babeş-Bolyai, Math. 25, No. 4, 11--23 (1980; Zbl 0466.76108)
Stan, Ioan; Gheorghiu, Calin Numerical methods for the flows with chemical reactions over a rotating disk. (Romanian) Zbl 0461.76026 Stud. Univ. Babes-Bolyai, Math. 25, No. 4, 24-31 (1980). MSC: 76D10 76R99 65Z05 76U05 80A30 PDF BibTeX XML Cite \textit{I. Stan} and \textit{C. Gheorghiu}, Stud. Univ. Babeş-Bolyai, Math. 25, No. 4, 24--31 (1980; Zbl 0461.76026)
Petrila, T. Sur l’ecoulement fluide tridimensionnel produit par la rototranslation dans la masse de fluide d’un corps rigide en presence d’une paroi illimitee. (Romanian) Zbl 0461.76005 Stud. Univ. Babes-Bolyai, Math. 25, No. 4, 3-10 (1980). MSC: 76B10 45B05 PDF BibTeX XML Cite \textit{T. Petrila}, Stud. Univ. Babeş-Bolyai, Math. 25, No. 4, 3--10 (1980; Zbl 0461.76005)
Duca, Dorel I. Saddlepoint optimality criteria of nonlinear programming in complex space without differentiability. (English) Zbl 0457.90063 Stud. Univ. Babes-Bolyai, Math. 25, No. 4, 39-46 (1980). MSC: 90C25 PDF BibTeX XML Cite \textit{D. I. Duca}, Stud. Univ. Babeş-Bolyai, Math. 25, No. 4, 39--46 (1980; Zbl 0457.90063)