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Four Colour Theorem: more detail  

1. Four Colour Theorem A new proof of the four color theorem by Ashay Dharwadker that uses group theory and Steiner systems. http://www.geocities.com/dharwadker/ 
2. The Four Color Theorem The Four Color Theorem. N. Robertson, DP Sanders, PD Seymour and R. Thomas,The four colour theorem, J. Combin. Theory Ser. B. 70 (1997), 244. http://www.math.gatech.edu/~thomas/FC/fourcolor.html  

3. Sci.math FAQ: The Four Colour Theorem sci.math FAQ The four colour theorem. There are reader questions on this topic! Help others by sharing your knowledge math Subject sci.math FAQ The four colour theorem Date 17 Feb 2000 225204 Version 7.5 The four colour theorem Theorem 2 four colour theorem Every planar map http://www.faqs.org/faqs/scimathfaq/fourcolour  

4. The Four Colour Theorem The four colour theorem. basic errors. The four colour theorem returnedto being the Four Colour Conjecture in 1890. Percy John Heawood http://wwwgap.dcs.stand.ac.uk/~history/HistTopics/The_four_colour_theorem.html  

5. The Four Colour Theorem References References for The four colour theorem. Books DA Holton and S Purcell, The fourcolour theorema short history, Austral. Math. Soc. Gaz. 6 (1) (1979), 1114. http://wwwgap.dcs.stand.ac.uk/~history/HistTopics/References/The_four_colour_t  

6. The Four Colour Theorem The four colour theorem. Geometry and topology index. History Topics Index. The Four Colour Conjecture first seems to have been made by Francis Guthrie. He was a student at University College London http://wwwgroups.dcs.stand.ac.uk/~history/HistTopics/The_four_colour_theorem.h  

7. Four Colour Map Theorem mathematics, application (Or "four colour theorem") The theorem stating that if the plane is divided into connected the world), it is never necessary to use more than four colours http://www.linuxguruz.org/foldoc/foldoc.php?four colour map theorem 
8. Four Colour Map Theorem From FOLDOC four colour theorem four colour map theorem. mathematics, application (Or "four colour theorem") The theorem stating that if the plane is divided into connected never necessary to use http://www.instantweb.com/D/dictionary/foldoc.cgi?four colour theorem 
9. Four Colour Theorem  Main A NEW PROOF OF. THE four colour theorem. BY. ASHAY DHARWADKER. H501 PALAMVIHAR DISTRICT GURGAON HARYANA 1 2 2 0 1 7 INDIA four colour theorem. http://www.geocities.com/dharwadker/main.html  

10. Four Color Theorem Four Color Theorem. Around book. The MacTutor History of Mathematics archiveat Saint Andrews has a nice article on the four colour theorem. http://grail.cba.csuohio.edu/~somos/4ct.html  

11. Four Colour Map Theorem From FOLDOC mathematics, application (Or "four colour theorem") The theorem stating that if the plane is divided into adjacent regions have the same colour (as when colouring countries on a http://www.instantweb.com/D/dictionary/foldoc.cgi?four colour map theorem 
12. Four Colour Map Theorem  FOLDOC Definition four colour map theorem. ( Or "four colour theorem") The theorem stating that if the plane is divided adjacent regions have the same colour (as when colouring countries on a http://www.nightflight.com/foldocbin/foldoc.cgi?four colour map theorem 
13. Four Color Theorem Intro Four Color Theorem Intro. Also see Nancy Casey Four Color Theorem and TheMacTutor History of Mathematics archive  four colour theorem. Addendum http://www.jimloy.com/geometry/4color.htm  

14. Claim Of Proof To FourColor Theorem The recent announcement by two American computer scientists that they have a proofof the four colour theorem, although they certainly have not published a http://www.lawsofform.org/gsb/nature.html  

15. LookSmart  Directory  FourColor Theorem four colour theorem Find an overview of Francis Guthrie s Four ColourConjecture. Includes reference articles and related links. http://search.looksmart.com/p/browse/us1/us317914/us328800/us10163846/us10165260  

16. LookSmart  Directory  FourColor Theorem New Proof of the four colour theorem Ashay Dharwadker uses Eilenberg modules, Hallmatchings, Riemann surfaces, Steiner systems, and a map of Madhya Pradesh to http://search.looksmart.com/p/browse/us1/us317914/us328800/us10163846/us10165260 
17. Four Colour Theorem  Encyclopedia Article About Four Colour Theorem. Free Acces encyclopedia article about four colour theorem. four colour theorem in Free onlineEnglish dictionary, thesaurus and encyclopedia. four colour theorem. http://encyclopedia.thefreedictionary.com/Four colour theorem  

18. The Four Colour Theorem The four colour theorem. 21, 1977, pp. 429567. N. Robertson, D. Sanders,P. Seymour, R. Thomas The four colour theorem Preprint, February 1994. http://db.uwaterloo.ca/~alopezo/mathfaq/node56.html  

19. The Four Colour Theorem The four colour theorem. Theorem 3 four colour theorem Every loopless planargraph admits a vertexcolouring with at most four different colours. http://db.uwaterloo.ca/~alopezo/mathfaq/mathtext/node27.html  

20. Four Colour Theorem four colour theorem. http://www.virtualology.com/virtualpubliclibrary/hallofeducation/Mathematics/Fou  

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