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File:Tietze genus 2 colouring.svg

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Original file (SVG file, nominally 512 × 512 pixels, file size: 5 KB)

Summary

Description A redrawing of Hermann Tietze's drawing of a complete map of 8 regions on a double torus (genus-two surface) with each region touching every other by CMG Lee. Regions of the same colour wrap around along the dotted lines. Each bubble denotes a unique combination of two regions.
Source Own work
Author Cmglee

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File history

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Date/TimeThumbnailDimensionsUserComment
current19:37, 4 November 2021Thumbnail for version as of 19:37, 4 November 2021512 × 512 (5 KB)CmgleeCurve red-green boundary and make yellow region more symmetrical // Editing SVG source code using c:User:Rillke/SVGedit.js
19:31, 4 November 2021Thumbnail for version as of 19:31, 4 November 2021512 × 512 (5 KB)CmgleeSmooth transition // Editing SVG source code using c:User:Rillke/SVGedit.js
01:30, 3 November 2021Thumbnail for version as of 01:30, 3 November 2021512 × 512 (5 KB)CmgleeHide white gaps // Editing SVG source code using c:User:Rillke/SVGedit.js
17:30, 23 October 2021Thumbnail for version as of 17:30, 23 October 2021512 × 512 (5 KB)CmgleeAdd shading
01:15, 16 October 2021Thumbnail for version as of 01:15, 16 October 2021512 × 512 (5 KB)CmgleeAvoid overlap and improve colours // Editing SVG source code using c:User:Rillke/SVGedit.js
00:12, 16 October 2021Thumbnail for version as of 00:12, 16 October 2021512 × 512 (5 KB)Cmglee{{Information |Description=A redrawing of Hermann Tietze's drawing of a complete map of 8 regions on a double torus (genus-two surface) with each region touching every other by CMG Lee. Regions of the same colour wrap around along the dotted lines. Each bubble denotes a unique combination of two regions. |Source={{own}} |Date= |Author= Cmglee |Permission= |other_versions= }} Category:SVG orb Category:Torus Category:Heawood graph Category:Four-color theorem

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