𝔖 Bobbio Scriptorium
✦   LIBER   ✦

Parastrophic planar ternary rings

✍ Scribed by George E Martin


Publisher
Elsevier Science
Year
1968
Tongue
English
Weight
527 KB
Volume
10
Category
Article
ISSN
0021-8693

No coin nor oath required. For personal study only.


πŸ“œ SIMILAR VOLUMES


One application of isotopies of planar t
✍ Dalibor KluckΓ½ πŸ“‚ Article πŸ“… 1975 πŸ› Springer 🌐 English βš– 208 KB

In this paper we are dealing with coordinatization of a given affine plane d by a PTR1). Such coordinatizations were first investigated in [4]. In [5] and [6] the necessary and sufficient conditions that a PTRZ coordinatizes a translation plane, a Desarguesian plane and a Pappian plane were deduced.

Planar rings in glasses
✍ F.L. Galeener πŸ“‚ Article πŸ“… 1982 πŸ› Elsevier Science 🌐 English βš– 442 KB
The planar forms of large carbon rings
✍ Drew, H. D. K. πŸ“‚ Article πŸ“… 1933 πŸ› Wiley (John Wiley & Sons) βš– 334 KB

And hc that considcrs how most blossoms of trees, and grcntcst iiiiinlwr of flowcrs consist of fivc len~cs ; and t,lierciii (10th rest the sct,tlcd rulc of Xiiturc."-Sir Thomns Broivne.

Left ternary trees and non-separable roo
✍ Alberto Del Lungo; Francesco Del Ristoro; Jean-Guy Penaud πŸ“‚ Article πŸ“… 2000 πŸ› Elsevier Science 🌐 English βš– 205 KB

In this paper, we illustrate a bijective proof of the enumerative formula regarding non-separable rooted planar maps NS, by means of a class L of certain ternary trees (called left trees). Our ΓΏrst step consists in determining the left trees' combinatorial enumeration according to the number of thei