Download or read book BULLETIN TOME XCI written by and published by Srpska akademija nauka i umetnosti. This book was released on 1986-05-13 with total page 50 pages. Available in PDF, EPUB and Kindle. Book excerpt: TABLE DES MATIERES 1. S. Aljaneie — Generalization of a Theorem due to Cesare, 1 2. M. D. Leko — A Class of Stationary Metrics and the case of Static Metrics of Space-time which gives Conics as 3-paths of Inertial Motions of Mass Points . 5 3. Z. A. Ivkovie — Non-linear Time-domain Analysis of Gaussian Process, General Case 13 4. M. Janc — Optimal and Suboptimal Solutions of a Simultaneous Approximation Problem 17 5. M. Janc — Nonlinear Approximation in Locally Convex Spaces 25 6. D. Stolle i D. Durovie — The 75-day Variation of the Geomagnetic Field and Solar Activity 33