Kiran S. (Sridhara) Kedlaya (he/him/él/il)

Professor of Mathematics
Stefan E. Warschawski Chair in Mathematics
Department of Mathematics, Room 7202
University of California San Diego (no comma!)
La Jolla, CA 92093-0112 (land acknowledgment, variant)
email: kedlaya[at]ucsd[dot]edu (public key)
voicemail: (+1) 858-534-2629 (no live phone)
headshot: jpg (Laurie DeWitt, 2019)
me on: arXiv, GitHub, NSF-PAR, ORCID, UC open access

Some of the more useful parts of this site are linked from the navigation bar at left. Also available:

• Notes for potential students
• Questions of interest
• Recommendation letters
• The Nonarchimedean Scottish Book
• Job postings in arithmetic geometry

Note: I do not monitor or control any social media accounts (including Facebook, Instagram, LinkedIn, Twitter, TikTok). I highly recommend this life choice!

News (see also past news)

The Arizona Winter School is now able to accept donations! Please help to perpetuate one of the oldest, most successful instructional conferences in mathematics. (4 Mar 22)

Fast facts (see also my CV)

Teaching for 2022-2023:

• fall 2022: Math 100A (Abstract Algebra I) and Math 204A (Number Theory).
• winter and spring 2023: none. At various times I will be visiting the institute formerly known as MSRI, CIRM, and HRIM.

Advance notice: I will not be teaching during 2023-24 either, visiting IAS for most of the year.

See also my past courses.

Office hours for spring 2022: I will not be on campus frequently during spring 2022; however, I will continue to hold remote office hours by appointment (primarily for PhD students). Email me to schedule.

Research areas: number theory, arithmetic algebraic geometry. Specialties: p-adic Hodge theory, p-adic/nonarchimedean analytic geometry, p-adic differential equations, algorithms in arithmetic geometry (particularly related to L-functions), interactions between arithmetic geometry and computer science (cryptography, coding theory, etc.). For more, see my questions of interest.

Editorial boards: Nagoya Mathematical Journal, L-Functions and Modular Forms Database.

Boards of directors: Art of Problem Solving Initiative (this includes governance of Bridge to Enter Advanced Mathematics), board Chair for Pro Mathematica Arte (this includes governance of Budapest Semesters in Mathematics and Budapest Semesters in Mathematics Education). I am also the Chair of the steering committee for the Algorithmic Number Theory Symposium conference series. As of February 2021, I will be serving a three-year term on the Council of the American Mathematical Society and the AMS Committee on Publications (co-chairing the latter during 2022).

Current grants: NSF grant DMS-2053473 (sole PI); NSF grant DMS-1802161 (sole PI); NSF RTG grant DMS-1502651 (co-PI). I am also an advisory board member for the UTMOST Project (interactive open-source mathematics textbooks), the Southwest Center for Arithmetic Geometry (including the Arizona Winter School), and the PRiME REU; and an associated scientist of the Simons Collaboration on Arithmetic Geometry, Number Theory and Computation.

Professional societies: American Mathematical Society, Mathematical Association of America, Association for Women in Mathematics, National Association of Mathematicians.

Software projects: I am an active user and developer of the SageMath open-source computer algebra system. I am a contributor to the LMFDB. Some of my other projects, including Math 157, can be found on GitHub.

Other websites: I am a curator for MathMeetings, from which my conference list in arithmetic geometry is now derived. I maintain the Putnam Archive within this website; however, Daniel Kane serves as the UCSD Putnam coordinator and teaches the Putnam seminar (Math 96).

Social justice: My work with the BEAM program seeks to create pathways to STEM careers for high-potential K-12 students from underserved backgrounds. I am a proud alum of the PCMI-IAS Workshop on Rehumanizing Mathematics led by the phenomenal Rochelle Gutiérrez. I am a Math Alliance mentor. I self-identify as first-gen.

Tips for reaching me by email

In case you send me an email and get no response, the following tips may help you diagnose the issue.

• I typically process my email as a last-in-first-out (LIFO) queue, with a postponement for messages that cannot be answered quickly. A single message containing multiple issues may take significantly longer to elicit a response than multiple messages containing single issues.
• At the moment, I do not have time to review grant proposals or to write full referee reports for articles. In limited cases I may be able to provide quick evaluations for papers that are sufficiently close to my expertise; I am currently prioritizing requests for "doubly-anonymous" opinions, i.e., those for which the names of the authors have been suppressed.
• My direct supervision of students is typically limited to students at UCSD, and takes the following forms. (Exceptions to "UCSD student only" include participants of programs affiliated with UCSD, the UC system, or the Math Alliance.)
  • For undergraduates: faculty coordinator for an off-campus internship (Math 197; generally for students who took Math 157), reading course/honors thesis (Math 199/199H).
  • For graduate students: reading course/PhD thesis (Math 299), dissertation committee (including as an external member). In rare cases I may also serve as faculty coordinator for an off-campus internship (Math 297).
• Regarding recommendation letters, see my separate page.
• UCSD runs a hyperagressive spam filter which I am not able to completely circumvent, leading to silent loss of some messages or attachments. It might help to change the sending address. In case of emergency, try voicemail (or my non-UCSD email address or cell phone number if you have one of those).

Fine print

Opinions expressed on this site are mine alone and may not reflect the views of past or present employers, funding agencies, collaborators, professional organizations, or governments. Conversely, off-site material need not reflect my views unless it indicates my authorship.

This site is independently hosted (currently by Arvixe) and funded; I have not been compensated for any content.

This site does not collect or store any identifiable user data. It is thus compliant with the EU General Data Protection Regulation and the California Consumer Privacy Act.

Although I have limited resources or expertise to address this, I am committed to removing any barriers to accessibility of this website. Please let me know if this affects you and I'll do what I can. (See also the PreTeXt project.)

Aunque este sitio está disponible solamente en inglés, puedo responder al correo electrónico en español (con dificultad).

Bien que ce site ne soit disponible qu'en anglais, je peux répondre aux courriels en français (avec difficulté).

Obwohl diese Seite nur auf Englisch verfügbar ist, kann ich auf E-Mails auf Deutsch antworten (mit großen Schwierigkeiten).

对不起, 我无法用中文回复电子邮件. (太难了!)

Excerpt from KAHNOP • TO TELL A STORY, UC San Diego campus, 2022. See also these excerpts, this excerpt, and this excerpt.