In graph theory, Hedetniemi's conjecture, formulated by Stephen T. Hedetniemi in 1966, concerns the connection between graph coloring and the tensor product of graphs. This conjecture states that
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{"type":"standard","title":"Pierre Dumonstier I","displaytitle":"Pierre Dumonstier I","namespace":{"id":0,"text":""},"wikibase_item":"Q4172255","titles":{"canonical":"Pierre_Dumonstier_I","normalized":"Pierre Dumonstier I","display":"Pierre Dumonstier I"},"pageid":51925624,"thumbnail":{"source":"https://upload.wikimedia.org/wikipedia/commons/thumb/8/81/Pierre_Dumonstier_001.jpg/330px-Pierre_Dumonstier_001.jpg","width":320,"height":574},"originalimage":{"source":"https://upload.wikimedia.org/wikipedia/commons/8/81/Pierre_Dumonstier_001.jpg","width":1000,"height":1795},"lang":"en","dir":"ltr","revision":"1256774711","tid":"494a7605-a038-11ef-b85c-d2ce285b412f","timestamp":"2024-11-11T14:21:48Z","description":"French artist","description_source":"local","content_urls":{"desktop":{"page":"https://en.wikipedia.org/wiki/Pierre_Dumonstier_I","revisions":"https://en.wikipedia.org/wiki/Pierre_Dumonstier_I?action=history","edit":"https://en.wikipedia.org/wiki/Pierre_Dumonstier_I?action=edit","talk":"https://en.wikipedia.org/wiki/Talk:Pierre_Dumonstier_I"},"mobile":{"page":"https://en.m.wikipedia.org/wiki/Pierre_Dumonstier_I","revisions":"https://en.m.wikipedia.org/wiki/Special:History/Pierre_Dumonstier_I","edit":"https://en.m.wikipedia.org/wiki/Pierre_Dumonstier_I?action=edit","talk":"https://en.m.wikipedia.org/wiki/Talk:Pierre_Dumonstier_I"}},"extract":"Pierre Dumonstier I was a French artist, notable as one of the masters of drawn portraiture of his period.","extract_html":"
Pierre Dumonstier I was a French artist, notable as one of the masters of drawn portraiture of his period.
"}{"slip": { "id": 117, "advice": "A common regret in life is wishing one hadn't worked so hard."}}
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