Dear Mr. Wang,  尊敬的王先生，
On behalf of the Organizing Committee, I am pleased to invite you to participate in the 2025 Fields Undergraduate Summer Research Program (June 15-August 15, 2025), hereafter referred to as FUSRP 2025. Updated information on program activities is available at: http://www.fields.utoronto.ca/activities/25-26/2025-FUSRP.
王，洪宇 我谨代表组委会，很高兴邀请您参加 2025 年菲尔兹大学生暑期研究项目（2025 年 6 月 15 日至 8 月 15 日），以下简称 FUSRP 2025。有关项目活动的最新信息可在以下网址获取：http://www.fields.utoronto.ca/activities/25-26/2025-FUSRP。

You have been selected for Project 06: Low-Dimensional Topology and Formalization, with Professor Maia Fraser and Professor C.-M. Michael Wong, hosted at the University of Ottawa (Ottawa, Ontario, Canada). Please contact your supverisor(s) directly to discuss any questions you have about the project, as well as how to prepare.
您已被选为项目 06：低维拓扑与形式化，由 Maia Fraser 教授和 C.-M. Michael Wong 教授主持，在渥太华大学（加拿大安大略省渥太华）举办。请直接联系您的导师讨论您对项目有任何疑问，以及如何准备。

For your participation in FUSRP 2025, we are pleased to offer you the following (all currency is listed in Canadian Dollars - $CAD):
为您的参与 FUSRP 2025，我们很高兴为您提供以下（所有货币单位均为加拿大元 - CAD）：

The Fields Institute supports as many participants as possible with limited resources. To confirm your spot in the program, please respond to this offer by 9:00 AM (EST) on Wednesday, February 26 ${}^{\text{th}},2025$${}^{\text{th }},2025$^("th "),2025{ }^{\text {th }}, 2025.
Fields 学院在有限的资源下尽可能支持尽可能多的参与者。为了确认您在项目中的位置，请在 2 月 26 日星期三上午 9:00（美国东部时间）之前对此出价做出回应。

The Fields Institute’s reimbursement instructions can be found at www.fields.utoronto.ca/resources/reimbursementclaims. Please ensure that you read these carefully before making travel arrangements. Please retain all receipts, boarding passes and other documentation of expenses to support your reimbursement claim. If you have any questions about this, please contact our Senior Program Coordinator, Shu-Chen Kuo, at skuo@fieldsinstutite.ca.
Fields Institute 的报销指南可在 www.fields.utoronto.ca/resources/reimbursementclaims 找到。请在安排旅行前仔细阅读这些指南。请保留所有收据、登机牌和其他支持报销申请的文件。如有任何疑问，请联系我们的高级项目协调员郭淑贞，邮箱 skuo@fieldsinstutite.ca。

It may be necessary for you to contact a Canadian Consulate to make arrangements for your visit and, if required, obtain the necessary travel documents to be permitted entry to Canada. For visa information see http://www.cic.gc.ca/english/visit/visas.asp. Should you accept this letter of invitation and need a letter in support of your visa application we would be pleased to provide one.
您可能需要联系加拿大领事馆安排您的访问，并在必要时获取允许进入加拿大的必要旅行文件。有关签证信息，请参阅 http://www.cic.gc.ca/english/visit/visas.asp。如果您接受此邀请函并需要一封支持您签证申请的信件，我们将很乐意提供。

The Fields Institute receives funding from public and private sources. To help us demonstrate the impact of our programs, we request that you acknowledge the support of the Fields Institute in any publications that result from your visit and that you send citation for these publications to programs@fieldsinstitute.ca. Please also keep us informed of significant advances in your work as well as collaborations resulting from your stay.
Fields Institute 从公共和私人来源获得资金。为了帮助我们展示我们项目的影响，我们要求您在您访问产生的任何出版物中承认 Fields Institute 的支持，并将这些出版物的引用发送至 programs@fieldsinstitute.ca。请还让我们了解您工作中取得的重大进展以及您停留期间产生的合作。

With best wishes for a productive and enjoyable visit,
祝您访问愉快且富有成效

Kasra Rafi  卡萨·拉菲
Deputy Director, Fields Institute
副院长，菲尔兹研究所
Professor of Mathematics, University of Toronto
数学教授，多伦多大学

On behalf of the Organizing Committee:
代表组委会：