𝔖 Bobbio Scriptorium
✦   LIBER   ✦

A convenient method of finding or identifying an Asteroid.

✍ Scribed by O. C. Wendell

Publisher
John Wiley and Sons
Year
1884
Tongue
English
Weight
144 KB
Volume
106
Category
Article
ISSN
0004-6337

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πŸ“œ SIMILAR VOLUMES

Minimizing the size of an identifying or
Minimizing the size of an identifying or locating-dominating code in a graph is NP-hard
✍ IrΓ¨ne Charon; Olivier Hudry; Antoine Lobstein πŸ“‚ Article πŸ“… 2003 πŸ› Elsevier Science 🌐 English βš– 144 KB

Let G = (V; E) be an undirected graph and C a subset of vertices. If the sets Br(v) ∩ C, v ∈ V (respectively, v ∈ V \C), are all nonempty and di erent, where Br(v) denotes the set of all points within distance r from v, we call C an r-identifying code (respectively, an r-locating-dominating code). W

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## Abstract A convenient and environmentally benign method for reducing the carbonyl group in hydroxy‐ and amino‐ 9,10‐anthracenediones, __ortho__ (or __para__) acyl phenols and acyl anilines to a methylene group by zinc powder in an aqueous sodium hydroxide solution was reported. Based on theoreti