菲尔兹奖得主带头，千余数学家抵制在美国举办国际数学家大会

[Lilyamao]

2026年的国际数学家大会（ICM）原定于今年7月在美国费城举办。然而就在近期，一封由两位菲尔兹奖得主和逾千名数学家联署的公开抗议书在学界广泛流传，措辞鲜明：若大会坚持在美国举行，签名者将集体拒绝出席。他们同时呼吁国际数学联盟（IMU）重新审议这一决定，将大会迁往更为合适的地点。
这场风波的震中，正是数学界最古老、最具分量的舞台。
ICM创办于二十世纪初，每四年举办一届，是全球数学家共聚一堂、分享突破性成果、展望学科未来的最高平台。对于每一位数学家而言，能在ICM上作受邀报告，本身便是对其学术地位的权威认可；在中国数学界，ICM的受邀报告数目甚至被视为衡量一国数学实力的重要标尺。更为人熟知的是，数学界最高荣誉——菲尔兹奖——正是在ICM的颁奖典礼上揭晓。
今年七月，ICM本将重返美国费城——这是时隔四十年，这场盛会再度踏上美国土地，上一次还是在美国伯克利举办的1986 ICM。然而，就在开幕倒计时之际，一群数学家在互联网上公开发出这样的声音：
“为了我们社群的安全，也为了全球数学家之间真正的团结，我们，以下签名者，承诺：如果国际数学家大会在美国举办，我们将不参加。我们敦促国际数学联盟将大会移至一个更为适宜的地点，使ICM有机会真正实现其促进数学家之间凝聚力与团结的使命。”

[Leuning]

确实不合适： 开会的时候ICE 抓几个，组办方肿么办？

[wass]

2026年的国际数学家大会（ICM）原定于今年7月在美国费城举办。然而就在近期，一封由两位菲尔兹奖得主和逾千名数学家联署的公开抗议书在学界广泛流传，措辞鲜明：若大会坚持在美国举行，签名者将集体拒绝出席。他们同时呼吁国际数学联盟（IMU）重新审议这一决定，将大会迁往更为合适的地点。
这场风波的震中，正是数学界最古老、最具分量的舞台。
ICM创办于二十世纪初，每四年举办一届，是全球数学家共聚一堂、分享突破性成果、展望学科未来的最高平台。对于每一位数学家而言，能在ICM上作受邀报告，本身便是对其学术地位的权威认可；在中国数学界，ICM的受邀报告数目甚至被视为衡量一国数学实力的重要标尺。更为人熟知的是，数学界最高荣誉——菲尔兹奖——正是在ICM的颁奖典礼上揭晓。
今年七月，ICM本将重返美国费城——这是时隔四十年，这场盛会再度踏上美国土地，上一次还是在美国伯克利举办的1986 ICM。然而，就在开幕倒计时之际，一群数学家在互联网上公开发出这样的声音：
“为了我们社群的安全，也为了全球数学家之间真正的团结，我们，以下签名者，承诺：如果国际数学家大会在美国举办，我们将不参加。我们敦促国际数学联盟将大会移至一个更为适宜的地点，使ICM有机会真正实现其促进数学家之间凝聚力与团结的使命。”

这次不来以后不让来

[dragonfly]

数学家真把自己当根儿葱了，搞数学他们是专家，搞政治可能还不如红脖子有common sense。

[resso]

数学家真把自己当根儿葱了，搞数学他们是专家，搞政治可能还不如红脖子有common sense。

红脖子可以停船，他们就能反串，没啥大不了的
至于红脖子有没有common sense，我的评价是没有

[牛大春]

支持。

2026年的国际数学家大会（ICM）原定于今年7月在美国费城举办。然而就在近期，一封由两位菲尔兹奖得主和逾千名数学家联署的公开抗议书在学界广泛流传，措辞鲜明：若大会坚持在美国举行，签名者将集体拒绝出席。他们同时呼吁国际数学联盟（IMU）重新审议这一决定，将大会迁往更为合适的地点。
这场风波的震中，正是数学界最古老、最具分量的舞台。
ICM创办于二十世纪初，每四年举办一届，是全球数学家共聚一堂、分享突破性成果、展望学科未来的最高平台。对于每一位数学家而言，能在ICM上作受邀报告，本身便是对其学术地位的权威认可；在中国数学界，ICM的受邀报告数目甚至被视为衡量一国数学实力的重要标尺。更为人熟知的是，数学界最高荣誉——菲尔兹奖——正是在ICM的颁奖典礼上揭晓。
今年七月，ICM本将重返美国费城——这是时隔四十年，这场盛会再度踏上美国土地，上一次还是在美国伯克利举办的1986 ICM。然而，就在开幕倒计时之际，一群数学家在互联网上公开发出这样的声音：
“为了我们社群的安全，也为了全球数学家之间真正的团结，我们，以下签名者，承诺：如果国际数学家大会在美国举办，我们将不参加。我们敦促国际数学联盟将大会移至一个更为适宜的地点，使ICM有机会真正实现其促进数学家之间凝聚力与团结的使命。”

[Lilyamao]

2026年的国际数学家大会（ICM）原定于今年7月在美国费城举办。然而就在近期，一封由两位菲尔兹奖得主和逾千名数学家联署的公开抗议书在学界广泛流传，措辞鲜明：若大会坚持在美国举行，签名者将集体拒绝出席。他们同时呼吁国际数学联盟（IMU）重新审议这一决定，将大会迁往更为合适的地点。
这场风波的震中，正是数学界最古老、最具分量的舞台。
ICM创办于二十世纪初，每四年举办一届，是全球数学家共聚一堂、分享突破性成果、展望学科未来的最高平台。对于每一位数学家而言，能在ICM上作受邀报告，本身便是对其学术地位的权威认可；在中国数学界，ICM的受邀报告数目甚至被视为衡量一国数学实力的重要标尺。更为人熟知的是，数学界最高荣誉——菲尔兹奖——正是在ICM的颁奖典礼上揭晓。
今年七月，ICM本将重返美国费城——这是时隔四十年，这场盛会再度踏上美国土地，上一次还是在美国伯克利举办的1986 ICM。然而，就在开幕倒计时之际，一群数学家在互联网上公开发出这样的声音：
“为了我们社群的安全，也为了全球数学家之间真正的团结，我们，以下签名者，承诺：如果国际数学家大会在美国举办，我们将不参加。我们敦促国际数学联盟将大会移至一个更为适宜的地点，使ICM有机会真正实现其促进数学家之间凝聚力与团结的使命。”

这次不来以后不让来

数学是基础科学，以后不让来、科学家没问题，美国失去了科学的根基

[Lilyamao]

数学家真把自己当根儿葱了，搞数学他们是专家，搞政治可能还不如红脖子有common sense。

一个没有科学家只有红脖子的美国留给你们华人川粉吧

哎呀、太糟糕了，红脖子不喜欢你们

[crane]

https://sites.google.com/view/icm2026boycott/home

Move the 2026 ICM out of the United States

We, the undersigned mathematicians, call on the IMU to reconsider its decision to hold the 2026 International Congress of Mathematicians in the United States this coming July. We rely heavily on the important precedent set by the IMU in 2022 when it decided not to hold the ICM in Russia in the context of its war of aggression in Ukraine and the potential dangers associated with holding such a conference in Russia in regards to freedom of political expression and the safety of LGBTQ participants. In the wake of this past decision, there is simply no sound argument one could make that claims international participants are more safe at this iteration of the ICM than they would have been in Russia in 2022.

The current American government has demonstrated in no uncertain terms its unbridled hatred of immigrants. This stance has increased the risks of traveling to the US, as it is now a country on the verge of martial law and there is a serious concern that academics (or anyone) traveling to the US may be denied entry. Indeed, the French mathematical society has already chosen not to attend the conference for these very reasons. The US supreme court recently ruled that government agents can stop and question civilians about their immigration status based solely on racial appearance or what language they speak. There are numerous cases all around the country of American citizens being caught up in this dragnet, and released only after experiencing terrible brutality and extended detainment. The highly publicized murders of US citizens by border patrol and ICE agents on the streets of Minneapolis and Los Angeles have not stopped or even slowed the brutality. Systemic mistreatment of detainees by federal enforcement officers have continued unabashedly. We point to the recent case of Nurul Amin Shah Alam, a blind man who froze to death after being picked up by ICE officers and then subsequently abandoned miles from his home. And in Philadelphia, the proposed host city, Parady La died alone and without access to his family while in ICE custody in what is suspected to be (assuming one gives the government the benefit of the doubt that no intentional harm was caused to La) a case of severe medical neglect.

This is the context in which the IMU is inviting mathematicians from all over the world, people who may not look to an ICE agent as though they “belong”, and therefore, people who may be subject to indiscriminate harassment and physical violence. And even if mathematicians from the 75 countries for which the current US administration has suspended visa processing are able to obtain conference visas, how can we expect such mathematicians to safely visit Philadelphia and engage fruitfully in the conference without fear of harm and unlawful detention? The IMU is irresponsible in its promotion of such risky behavior amongst the world's mathematicians, especially when over 40 countries have issued travel warnings to their citizens when traveling to and from the US.

So if the goal of the ICM is to encourage a sense of international unity amongst mathematicians, the IMU would completely fail on its own terms were it to go through with its plans to host the conference in the United States. The impossibility of achieving this sense of unity comes not only from the actions the Trump administration takes within US borders, but also from its flagrant disregard of basic humanity all around the world. Thus, just as many mathematicians objected to Russia’s hosting of ICM on the basis of its invasion of Ukraine, we argue that the current American government disqualifies the US from hosting the ICM in 2026. Indeed, America’s role in destabilizing the world through widespread attacks include:

• the illegal kidnapping of the leader of Venezuela under bogus “war on drugs” claims,

• continued extrajudicial killings in the Caribbean,

• aiding and abetting the ongoing genocide in Palestine, including pushing for the ethnic cleansing of Gaza to make room for luxury real estate,

• the creation of a humanitarian crisis through a coercive and punitive blockade in Cuba,

• a brazen and thoughtless war on Iran (which included the bombing of a school that lead to the deaths of over 150 children and 20 teachers), and

• its absurd attempt to colonize Greenland completely against the desires of its current inhabitants

These actions can be under no circumstances deemed civilized, justified, or representative of the spirit of unity to which the ICM aspires. Indeed, when Trump’s secretary of War, Pete Hegseth, was interviewed about the United State’s most recent attempt to disguise the destruction of another Middle Eastern country as “liberation”, he proclaimed proudly that “the only ones that need to be worried right now are Iranians who think they’re gonna live.”

We emphasize that the violence perpetrated internationally by the US government directly connects to the primary concern of safety and well-being of conference participants. Given that one of the highest ranking governmental officials of the host country expressed an intention to indiscriminately murder Iranians, one might forgive an Iranian mathematician (regardless of their personal political orientation towards the war and the stated goals of its initiators) for not feeling a sense of unity at a US-based ICM.

For the sake of the safety of our community and in the name of genuine unity amongst mathematical scientists across the globe, we the undersigned commit not to participate in the ICM if it is to be held in the United States. And we urge the IMU to move the conference to a far more hospitable location, one that would grant the ICM the chance to succeed in its mission of fostering cohesion and solidarity between mathematicians.

Please fill out your name and affiliation on the Google Form below to publicly sign onto the petition. If you would like to sign anonymously, please fill out this form here.

Our goal is to send this letter to the IMU after receiving enough signatures. If you’d like to collaborate on next steps, please reach out to Ila Varma (ila@math.toronto.edu) and Tarik Aougab (taougab@haverford.edu). We are especially interested in collaborating with those who are willing to contact national math societies about joining the Société Mathématique de France (SMF), la Société de Mathématiques Appliquées et Industrielles (SMAI), la Fondation Sciences Mathématiques de Paris (FSMP), and a Sociedade Brasileira de Matemática (SBM) or hold a senior position at one of them and can publicize this petition.

[wass]

川普刚刚上台的时候，如果会议挪去别的国家，估计就没有几个人报名。现在折腾，就是既要当婊子，还要。。。