Ciro Santilli @cirosantilli 37

 0 Why Ciro Santilli uses excessive amounts of links even to things everyone knows what they are by Ciro Santilli 37  Updated 2025-05-23  +Created 2024-07-29

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This website is written for aliens, not humans.

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 0 PROMYS Europe 2024 application problem set answers by Ciro Santilli 37  Updated 2025-05-23  +Created 2024-07-12

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 0 PROMYS Europe 2024 application problem set by Ciro Santilli 37  Updated 2025-05-23  +Created 2024-07-12

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Visible at: www.maths.ox.ac.uk/system/files/attachments/PROMYSEurope_2024_Application-12.pdf

Archive: web.archive.org/web/20240224155507/https://www.maths.ox.ac.uk/system/files/attachments/PROMYSEurope_2024_Application-12.pdf

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 0 PROMYS Europe 2024 problem set / Set 2 / P14 by Ciro Santilli 37  Updated 2025-05-23  +Created 2024-07-12

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 0 PROMYS Europe 2024 problem set / Set 2 / P13 by Ciro Santilli 37  Updated 2025-05-23  +Created 2024-07-12

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 0 PROMYS Europe 2024 problem set / Set 2 / P12 by Ciro Santilli 37  Updated 2025-05-23  +Created 2024-07-12

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 0 PROMYS Europe 2024 problem set / Set 2 / P11 by Ciro Santilli 37  Updated 2025-05-23  +Created 2024-07-12

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 0 PROMYS Europe 2024 problem set / Set 2 / P10 by Ciro Santilli 37  Updated 2025-05-23  +Created 2024-07-12

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 0 PROMYS Europe 2024 problem set / Set 2 / P9 by Ciro Santilli 37  Updated 2025-05-23  +Created 2024-07-12

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 0 PROMYS Europe 2024 problem set / Set 2 / P8 by Ciro Santilli 37  Updated 2025-05-23  +Created 2024-07-12

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 0 PROMYS Europe 2024 problem set / Set 2 / P7 by Ciro Santilli 37  Updated 2025-05-23  +Created 2024-07-12

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 0 PROMYS Europe 2024 problem set / Set 2 / P6 by Ciro Santilli 37  Updated 2025-05-23  +Created 2024-07-12

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 0 PROMYS Europe 2024 problem set / Set 2 / P5 by Ciro Santilli 37  Updated 2025-05-23  +Created 2024-07-12

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 0 PROMYS Europe 2024 problem set / Set 2 / P4 by Ciro Santilli 37  Updated 2025-05-23  +Created 2024-07-12

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 0 PROMYS Europe 2024 problem set / Set 2 / P3 by Ciro Santilli 37  Updated 2025-05-23  +Created 2024-07-12

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 0 PROMYS Europe 2024 problem set / Set 2 / P2 by Ciro Santilli 37  Updated 2025-05-23  +Created 2024-07-12

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 0 PROMYS Europe 2024 problem set / Set 2 / P1 by Ciro Santilli 37  Updated 2025-05-23  +Created 2024-07-12

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 0 PROMYS Europe 2024 problem set / Set 2 / Q2 by Ciro Santilli 37  Updated 2025-05-23  +Created 2024-07-12

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• Section "Greatest common divisor".
• Section "Farey sequence".
  • Section "Number of elements in a Farey sequence"
  • Farey sunburst, e.g. $F_5$:

    

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 0 PROMYS Europe 2024 problem set / Set 2 / Q1 by Ciro Santilli 37  Updated 2025-05-23  +Created 2024-07-12

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Section "Greatest common divisor".

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 0 gmp/antihydra.c by Ciro Santilli 37  Updated 2025-05-23  +Created 2024-07-12

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Also posted at:

• wiki.bbchallenge.org/w/index.php?title=Antihydra&oldid=958 But obviously it got deleted, not even a tiny shitpage maintained by 5 people is immune to deletionism
• cstheory.stackexchange.com/questions/20978/what-is-the-smallest-turing-machine-where-it-is-unknown-if-it-halts-or-not/53326#53326
• cs.stackexchange.com/questions/59344/what-are-very-short-programs-with-unknown-halting-status/162108#162108

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