Schattschneider_Reconstruction_of_Escher's_Coxeter_Diagram.jpg (440 × 227 pixels, file size: 42 KB, MIME type: image/jpeg)
Summary[edit]
Description | Doris Schattschneider's reconstruction of the diagram of hyperbolic tiling sent by the graphic artist M. C. Escher to the mathematician H. S. M. Coxeter. |
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Author or copyright owner |
Doris Schattschneider after M. C. Escher |
Source (WP:NFCC#4) | Original publication: The Mathematical Side of M. C. Escher, Notices of the AMS, 57, 6, 706-718, 2010 Immediate source: http://www.ams.org/notices/201006/rtx100600706p.pdf |
Date of publication | 2010 |
Use in article (WP:NFCC#7) | M. C. Escher |
Purpose of use in article (WP:NFCC#8) | The diagram shows the depth of the mathematical research undertaken by Escher, as understood by a practising mathematician. |
Not replaceable with free media because (WP:NFCC#1) |
There isn't one; the diagram could be copied and redrawn using a graphics tool but that would still be breaching Schattschneider's and Escher's copyright in the image. |
Minimal use (WP:NFCC#3) | The image is the only analytic diagram used in the article. It is used only in this one article. It is greatly reduced in size. |
Respect for commercial opportunities (WP:NFCC#2) |
The image has long been published in an academic paper; both it and the rest of that paper are too technical to be highly commercial, but are of encyclopedic interest for the understanding of Escher's life and work. |
Fair useFair use of copyrighted material in the context of M. C. Escher//en.wikipedia.org/wiki/File:Schattschneider_Reconstruction_of_Escher%27s_Coxeter_Diagram.jpgtrue |
Licensing[edit]
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Date/Time | Thumbnail | Dimensions | User | Comment | |
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current | 10:48, 4 November 2015 | 440 × 227 (42 KB) | Chiswick Chap (talk | contribs) | Uploading a non-free file using File Upload Wizard |
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