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 920930112 (land acknowledgment, variant)
email: kedlaya[at]ucsd[dot]edu (public key)
voicemail: (+1) 8585342629 (no live phone)
headshot: jpg (Laurie DeWitt, 2019)
me on: arXiv, GitHub,
NSFPAR,
ORCID,
UC open access
Note: I do not control any accounts on social media platforms (e.g., Facebook, Instagram, LinkedIn, Twitter). I highly recommend this life choice!
News (see also past news)
Nothing at the moment, check back later.
Fast facts (see also my CV)
Teaching for 20212022: (intended to be inperson)
 fall 2021: Math 100A (Abstract Algebra I).
 winter 2022: Math 157 (Intro to Math Software). Warning: I have not updated the course web site for winter 2022 yet.
 spring 2022: Math 106 (Intro to Algebraic Geometry).
Teaching for 20202021: (all remote, for obvious reasons)
 fall 2020: Math 204A (Number Theory) plus an "epicourse" for the world; see the web site.
 winter 2020: Math 187A (Introduction to Cryptography); Math 204B (Number Theory) plus an epicourse. (See also Thomas Grubb's Math 157 site.)
 spring 2021: Math 206 (Topics in Algebraic Geometry) plus an epicourse. Topic: prismatic cohomology.
See also my past courses.
Office hours for fall 2021: In addition to the regular office hours for Math 100A (see the course website), I have office hours on Mondays by appointment, and a few 15minute openings on Wednesdays and Fridays scheduled via Calendly, in both cases with inperson and remote options.
Research areas: number theory, arithmetic algebraic geometry. Specialties: padic Hodge theory, padic/nonarchimedean analytic geometry, padic differential equations, algorithms in arithmetic geometry (particularly related to Lfunctions), interactions between arithmetic geometry and computer science (cryptography, coding theory, etc.). For more, see my questions of interest.
Editorial boards: Nagoya Mathematical Journal, LFunctions 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 threeyear term on the Council of the American Mathematical Society and the AMS Committee on Publications.
Current grants: NSF grant DMS2053473 (sole PI); NSF grant DMS1802161 (sole PI); NSF RTG grant DMS1502651 (coPI); NSF grant DMS1844206 (custodial PI). I am also an advisory board member for the UTMOST Project (interactive opensource mathematics textbooks), an advisory board member for the Southwest Center for Arithmetic Geometry (including the Arizona Winter School), an advisory board member for 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 opensource computer algebra system. I am a contributor to the LMFDB. Some of my other projects 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, the UCSD Putnam coordinator is Daniel Kane.
Social justice: My work with the BEAM program seeks to create pathways to STEM careers for highpotential K12 students from underserved backgrounds. I am a proud alum of the PCMIIAS Workshop on Rehumanizing Mathematics led by the phenomenal Rochelle Gutiérrez. I am a Math Alliance mentor. I selfidentify as firstgen.
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 lastinfirstout (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 "doublyanonymous" 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 or the UC system, or of the Math Alliance.)
 For undergraduates: faculty coordinator for an offcampus 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 offcampus 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 nonUCSD 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, offsite 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. Access to the site may have been degraded by the recent weakening of the Federal Communications Commission net neutrality policy. In addition, if you are viewing this web site in the US, your Internet service provider may have the right to sell your user data.
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.
Due to lack of time and energy, this site has not been optimized for viewing on mobile phones or other small screens. It has also not been optimized for screen readers or other accessibility tools, but I would welcome advice about this. (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 EMails auf Deutsch antworten (mit großen Schwierigkeiten).
Хотя этот сайт доступен только на английском языке, я могу отвечать на электронные письма на русском языке (с огромными трудностями).
对不起，我无法用中文回复电子邮件. (太难了!)