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Post As5IR8MhvrxFpXoCA4 by [email protected] |
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More posts by [email protected] |
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Post #As3QMiuH3Ve31xzsRs by [email protected] |
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HARDCORE MATH POSTThe McGee graph, shown here by Mamuka Jibladze, is the unique… |
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Post #As4Gt6aXjovrMTWvsu by [email protected] |
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@johncarlosbaez Interesting! Wikipedia has an article on McGee graph: https://e… |
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Post #As4Gt6gvM62JgGW1pY by [email protected] |
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@thebluewizard - yes, and I just added some material to it today, based on what… |
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Post #As4u617hGWGIO8BYBc by [email protected] |
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@johncarlosbaez I tried to solve the puzzle, but I must be confused about somet… |
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Post #As5EE6H7zZF3lcjDYu by [email protected] |
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@gregeganSF @johncarlosbaez The partial automorphism you found are inner on the… |
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Post #As5EE6NraWd66Vsb3o by [email protected] |
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@oantolin @gregeganSF - I'm afraid this is one of those nasty puzzles where… |
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Post #As5F4AS3i40TmIfWl6 by [email protected] |
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@oantolin @gregeganSF - SmallGroup(32,43) is indeed the group we're talking… |
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Post #As5IR8MhvrxFpXoCA4 by [email protected] |
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@oantolin @gregeganSF - Here are a bunch of examples of finite groups with oute… |
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Post #As5K9xaAy8zzNE2y9o by [email protected] |
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@oantolin @gregeganSF - okay, I read that this paper shows the semidirect produ… |
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Post #As5YEopEM1Pp1IIdRg by [email protected] |
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@johncarlosbaez @oantolin @gregeganSF What a nice surprise this morning to see … |
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Post #As5bc8db9rPYzQfb72 by [email protected] |
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@redrot - it sounds very much related, at least!@oantolin @gregeganSF |
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Post #As5r1Fd3nfgbE0qp9c by [email protected] |
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@johncarlosbaez @oantolin I checked all 4^4 possibilities, but I can’t find a… |
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Post #As5tFtJnEVroHVwoXw by [email protected] |
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@gregeganSF @oantolin - now it's getting 𝑟𝑒𝑎𝑙𝑙𝑦 interesti… |
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Post #As6bPueZWI7vIkFuc4 by [email protected] |
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@johncarlosbaez @oantolin I think I’ve found four class-preserving outer auto… |
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Post #As6bPukFBCfDaKuRSC by [email protected] |
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@gregeganSF - it's bed time for me now, so I'll have to think about thi… |
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Post #As7jLBz4eQ3gOY473g by [email protected] |
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@johncarlosbaez there should be an embedding of this graph into a genus 2 surfa… |
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Post #As7mwpOJOnaRBtVXqC by [email protected] |
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@dimpase - Fun question! @gregeganSF showed how to embed the McGee graph into… |
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Post #As7ubCLOBBkZdlL03U by [email protected] |
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@johncarlosbaez @oantolin The crucial properties that D(a) needs to satisfy in … |
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Post #As7ubCRPomZRwS9oRs by [email protected] |
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@gregeganSF - thanks! Today I'm busy transferring all my Visual Insight ar… |
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Post #As8BETrOaRmsWh3tOy by [email protected] |
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@johncarlosbaez @gregeganSF it's a "combinatorial embedding", i.e… |
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Post #As8Vx1Au5DgFfthWFc by [email protected] |
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@gregeganSF @johncarlosbaez @oantolin those equations are exactly the definitio… |
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Post #As8Vx1HHhUmhzggcCG by [email protected] |
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@joshuagrochow @gregeganSF @oantolin - super-cool! I was trying to recognize … |
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Post #As8WshwNkmSIohPvjE by [email protected] |
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@johncarlosbaez @gregeganSF @oantolin the gif in the first post looks very Mobi… |
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Post #As8zop4yAUDOT7vwu0 by [email protected] |
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@johncarlosbaez @joshuagrochow @oantolin I should just add that, while the equa… |
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Post #AsBjEhlsqTxDaQdrZA by [email protected] |
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@gregeganSF @johncarlosbaez @oantolin I mean, sure, but I feel like that fits i… |
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Post #AsBjEhtKOnuPxW7oAa by [email protected] |
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@joshuagrochow I wasn’t arguing against anything you’re saying, I was just … |
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Post #AsBjEi03zlISIPHBfU by [email protected] |
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@gregeganSF @johncarlosbaez @oantolin Oh, I don't think you were arguing ag… |
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Post #AsBjEi6Rc2OucCGHc8 by [email protected] |
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@gregeganSF @johncarlosbaez @oantolin This totally nerd-sniped me.For the role … |
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Post #AsBjEiDBCzmwx5Pf72 by [email protected] |
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@joshuagrochow @oantolin - I'll definitely check this out. Do you think th… |
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Post #AsBlPvSyT4SF9eH95E by [email protected] |
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@johncarlosbaez @oantolin @gregeganSF oh, uh, maybe not. Just explains why deri… |
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Post #AsMdFYFhGE4VMoANaS by [email protected] |
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@gregeganSF - on the train up to Berkeley I just checked by hand that your firs… |
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Post #AsMremKTSTihckKAhk by [email protected] |
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@johncarlosbaez Deleting the red edges (and erasing the red vertices), one get… |
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Post #AsMsLPTkI8YpCrzOb2 by [email protected] |
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@johncarlosbaez I heard the train pass through town today. Had I known you wer… |
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Post #AsMsqTE4PSPvnzT4Yi by [email protected] |
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@4raylee -thanks! If I'd known where you were I'd have waved back! Th… |
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Post #AsMt5W2IFCMwre8LEe by [email protected] |
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@Ianagol - thanks, I'll have to think about this! Btw I'll be in Berke… |
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Post #AsMtVJcP2ELpsgKG12 by [email protected] |
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@johncarlosbaez I’ve taken the coast starlight leg from here (San Luis Obispo… |
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Post #AsMuSuJiEZuAmj00NU by [email protected] |
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@johncarlosbaez Cool, are you visiting the topos institute? We are on spring br… |
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Post #AsNqh7WPjKiV8PQDU8 by [email protected] |
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@Ianagol - I hadn't known about semidihedral groups (nice picture below). … |
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Post #AsNrwPZH18KJOxcAEq by [email protected] |
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@johncarlosbaez @gregeganSF I hadn’t heard of it before, I just looked at the… |
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Post #AsOS6yfOyKllVKook4 by [email protected] |
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@4raylee - Nice! I've rarely been to Seattle or Portland, and now I'm … |
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Post #AsP8p87dNICre7lBq4 by [email protected] |
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@johncarlosbaez As you mention, due to the timing I’ve only seen snow coming … |
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Post #AsQ26zs6HeCQkV1iuO by [email protected] |
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@4raylee - her interest in Navajo weaving is not professional (she works on com… |
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Post #AsSXp4Vjsj1ym4z3XU by [email protected] |
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@gregeganSF @oantolin - I'm writing about this now, and I just noticed that… |
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Post #AsSab2qHaYdbPKb0oi by [email protected] |
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@johncarlosbaez @oantolin Yes, I phrased that badly; I knew the other two condi… |
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Post #AsSqI9LWmVqjLNDrhQ by [email protected] |
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@gregeganSF @oantolin - got it. It matters a bit because there's a thing … |
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Post #AsSqi2zl18gzAvO9jc by [email protected] |
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@gregeganSF @johncarlosbaez @oantolin My impression is that you can coordinatiz… |
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Post #AsSqi36Uc651VoXXEW by [email protected] |
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@glc - you're reminding me of @gregeganSF's work on this, which is expl… |
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Post #AsSrJGBYwFuknbeevY by [email protected] |
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@johncarlosbaez @gregeganSF Oh - I dropped in in the middle, and that looked li… |
