𝔖 Bobbio Scriptorium
✦   LIBER   ✦

Triple point of water as a basic fixed point


Publisher
Elsevier Science
Year
1942
Tongue
English
Weight
141 KB
Volume
234
Category
Article
ISSN
0016-0032

No coin nor oath required. For personal study only.


πŸ“œ SIMILAR VOLUMES


The melting point of mercury and the tri
✍ A. Michels; B. Blaisse; G. Koens πŸ“‚ Article πŸ“… 1942 πŸ› Elsevier Science βš– 221 KB

Apparatus is described for using the melting point of mercury and the triple point of carbon dioxide as auxiliary fixed points for the calibration of platinum thermometers. The repfoducibilities of the points were respectively 0.0005 and 0.0002 degree.

Least fixed point of a functor
✍ JiΕ™Γ­ AdΓ‘mek; VΓ‘clav Koubek πŸ“‚ Article πŸ“… 1979 πŸ› Elsevier Science 🌐 English βš– 918 KB
A fixed-point theorem of Krasnoselskii
✍ T.A Burton πŸ“‚ Article πŸ“… 1998 πŸ› Elsevier Science 🌐 English βš– 193 KB

Krasnoselskii's fixed-point theorem asks for a convex set M and a mapping Pz = Bz + Az such that: (i) Bx+AyEM for eachx, yE M, (ii) A is continuous and compact, (iii) B is a contraction. Then P has a fixed point. A careful reading of the proof reveals that (i) need only ask that Bx + Ay E M when x