| Title:
|
Distinct equilateral triangle dissections of convex regions (English) |
| Author:
|
Donovan, Diane M. |
| Author:
|
Lefevre, James G. |
| Author:
|
McCourt, Thomas A. |
| Author:
|
Cavenagh, Nicholas J. |
| Language:
|
English |
| Journal:
|
Commentationes Mathematicae Universitatis Carolinae |
| ISSN:
|
0010-2628 (print) |
| ISSN:
|
1213-7243 (online) |
| Volume:
|
53 |
| Issue:
|
2 |
| Year:
|
2012 |
| Pages:
|
189-210 |
| Summary lang:
|
English |
| . |
| Category:
|
math |
| . |
| Summary:
|
We define a proper triangulation to be a dissection of an integer sided equilateral triangle into smaller, integer sided equilateral triangles such that no point is the vertex of more than three of the smaller triangles. In this paper we establish necessary and sufficient conditions for a proper triangulation of a convex region to exist. Moreover we establish precisely when at least two such equilateral triangle dissections exist. We also provide necessary and sufficient conditions for some convex regions with up to four sides to have either one, or at least two, proper triangulations when an internal triangle is specified. (English) |
| Keyword:
|
equilateral triangle dissection |
| Keyword:
|
latin trade |
| MSC:
|
05B45 |
| idZBL:
|
Zbl 1265.05091 |
| idMR:
|
MR3017254 |
| . |
| Date available:
|
2012-08-08T08:57:25Z |
| Last updated:
|
2014-07-07 |
| Stable URL:
|
http://hdl.handle.net/10338.dmlcz/142884 |
| . |
| Reference:
|
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| Reference:
|
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| Reference:
|
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| Reference:
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| Reference:
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| Reference:
|
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| Reference:
|
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| Reference:
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| Reference:
|
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| Reference:
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| Reference:
|
[11] McCourt T.A.: On defining sets in latin squares and two intersection problems, one for latin squares and one for Steiner triple systems.PhD Thesis, University of Queensland, Australia, 2010. Zbl 1195.05014, MR 2685159 |
| Reference:
|
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| . |
