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#ICM2026
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The ICM2022 visa policy was part of why their bid was successful. #ICM2026 never said anything of the kind.

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I would like to add "held a valid visa that was rescinded without explanation" and "hastily deported along with his son" to the ever growing list of reasons why

WE SHOULD NOT HAVE #ICM2026 IN THE USA

Local organisers' "mitigating the risk" claim: hollow

AMS + IMU declarations: cynical

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Absolutely heartbreaking. So many mathematicians I know studied there, men AND women.

Maryam Mirzakhani studied there.

If this isn't enough to cancel/relocate from the US the International Congress of Mathematicians #ICM2026, nothing will be.

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Video

"For me, math is really something that I share with people." — 2022 Fields Medal winner Hugo Duminil-Copin.

Find out who wins the 2026 Fields Medal at #ICM2026 in July, where mathematicians will come together to celebrate the shared spirit of #math: https://bit.ly/4drp3sg

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Mathematical societies worldwide have THE DUTY to boycott #ICM2026.

The International Mathematical Union should step in, just as they did in 2022 and for the same excellent reasons.

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Look I understand I keep saying we should move #ICM2026 and give different reasons, so I will not add this one. I will just say [redacted, but in Italian] I would be scared to travel to any country with such an (un)health policy.

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Video

In 2022, EPFL's Maryna Viazovska won the Fields Medal at the International Congress of Mathematicians. This July, the 2026 Fields Medalists will be announced at #ICM2026 in Philadelphia: www.icm2026.org/event/ac193975-5d24-4628... #math

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Further comments

This panel is where I learned to say cilicio in English.

A later strip shows Mo and Sydney loving the word syzygy. So do I, and I have papers with syzygy in the title.

PS I wouldn't go to #ICM2026 even if they had Alison Bechdel as artist in residence. But I would be SAD.

/end

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To all mathematicians, there's still time to sign the letter against holding #ICM2026 in PHiladelphia!

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for some reason this reminds of #icm2026

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ALL fields have prime characteristic 😎

PS I learned this in Italian, hence caratteristica.

Reminder: IMU should move #ICM2026 away from Philadelphia just like it moved ICM2022 away from Saint Petersburg.

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I am trying to build a firm list of reasons NOT to let #ICM2026 take place in Philadelphia, or more generally the USA, but I keep having to add items.

Also works as reasons not to attend.

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Oh look folks! Philadelphia airport!
I can't imagine anyone who might want to fly in having second thoughts about this, especially foreign mathematicians attending a conference.

Delenda #ICM2026

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Read the whole thread and then if you are a mathematician do NOT go to #ICM2026.

ICM2926 must be cancelled or like ICM2022 dismembered and each part take place outside the US.

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A curled up cat lying on a black leather coat, his face hidden under a lapel to shelter himself from daylight in his sleep.

A curled up cat lying on a black leather coat, his face hidden under a lapel to shelter himself from daylight in his sleep.

I went out for two walks, a referendum vote, and a gelato, all of it wearing a too light coat (plus an intermediate layer) because the coat I wanted was unavailable.

I wish I could say "we proved the conjecture" but, alas, only one more special case.

Also, they should move #ICM2026 to Mexico.

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I am Italian. We have the same R as the Russians, and the same havit of thinking that if a letter is written iy should also be pronounced.

On the other hand, if #ICM2026 is moved to Canada, I promise to learn to pronounce correctly Toronto, Alberta and Saskatchewan.

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Oggi non riuscivo a trovare la tessera elettorale. L’ho cercata ovunque, poi l'ho detto a mia figlia, e lei l’ha trovata in due minuti cercando dove io l’avevo già cercata.

Adesso è in videochiamata e ha raccontato la storia a tuttə lə suə amichə online.

Ceterum censeo #ICM2026 delenda est

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Yesterday Lothar and I ate lunch outdoors, under a centuries old wall, right next to a canal. We also did maths on the train and were VERY puzzled by the results. They didn’t make sense for odd n.

Today I pointed out a detail we missed and he SMILED.

Moreover, #ICM2026 must be cancelled. #MathSky

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I hope many of my colleagues see this, and decide accordingly about attending.

Ceterum censeo #ICM2026 in Philadelphia must be cancelled.

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Video

Attend the #ICM2026 opening ceremony and witness the top mathematicians be awarded the Fields Medal, Abacus Medal and other prizes.

The rest of the schedule will be packed with prestigious speakers presenting the latest #math breakthroughs. See the full agenda and register: https://www.icm2026.org

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Does the international Mathematical Union have an account here? I truly hope no one but (those who can do so safely among) the invited speakers attends #ICM2026.

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Video

#ICM2026 is returning to the U.S. after 40 years! Come see the Fields Medal get awarded and attend prestigious #math talks in Philadelphia this July. Register today: www.icm2026.org/event/ac193975-5d24-4628...

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No one from outside the US should go to #ICM2026. No mathematical societies should send official delegations. Let them sit on their own, with the invited speakers they are paying for (at least those who can make it there safely) and NO ONE ELSE.

And pay through their nose for the empty rooms.

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Ditto for #ICM2026!

@amsmath.bsky.social

International Congress of Mathematicians, Philadelphia, 2026.

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ICM 2026 - motion du CA | Société Mathématique de France La SMF ne tiendra pas de stand à l'ICM de Philadelphie.

#ICM2026 #France La SMF n'ira pas à l'ICM de Philadelphie smf.emath.fr/actualites-smf/icm-2026-... En effet ni la délivrance de visas par le pays hôte, ni sa sécurité intérieure alors qu'y est régulièrement évoquée la loi martiale, ne semblent garanties.

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ICM 2026 - motion du CA | Société Mathématique de France La SMF ne tiendra pas de stand à l'ICM de Philadelphie.

#ICM2026 #France La SMF n'ira pas à l'ICM de Philadelphie smf.emath.fr/actualites-s... En effet ni la délivrance de visas par le pays hôte, ni sa sécurité intérieure alors qu'y est régulièrement évoquée la loi martiale, ne semblent garanties.

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Hey @amermathsoc.bsky.social still convinced it's a good idea to have #ICM2026 in the USA?

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thinking about #icm2026 in #philly.

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The #ICM2026 will be absolutely fine! An event @amermathsoc.bsky.social will be proud of in the years to come!
/Sarcasm

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It's Minneapolis today. It could be Philadelphia next summer.
It is not safe in any way to hold #ICM2026 there. @amermathsoc.bsky.social are you doing anything?

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