Kiran Sridhara Kedlaya
Professor of Mathematics (he/him)
Stefan E. Warschawski Chair in Mathematics
Department of Mathematics, Room 7202
University of California, San Diego (land acknowledgment)
9500 Gilman Drive #0112
La Jolla, CA 920930112
email: kedlaya[at]ucsd[dot]edu (public key)
voicemail: (+1) 8585342629 (no live phone)
headshot: jpg (Laurie DeWitt, 2019)
me on: arXiv, ORCID,
NSFPAR,
UC open access
News (see also past news)
I will continue to hold online office hours on Mondays during winter 2021, plus a social "RTG tea" 4:004:30pm PDT/PST. If you wish to schedule a meeting or join tea, email me for the Zoom links. (25 Nov 20)
For those interested in my course Math 157: Intro to Mathematical Software, it will be taught this year by my student Thomas Grubb. See his course web site. (16 Nov 20)
In 2021, the Arizona Winter School will be operating in a modified format due to the pandemic. The program originally scheduled for 2021 has been postponed to 2022; instead, AWS will offer four 6week lecture series at a more introductory level. Applications are now open! (29 Oct 20)
Fast facts (see also my CV)
Teaching for 20202021:
 fall 2020: Math 204A (Number Theory) plus an "epicourse" for the world; see the web site.
 winter 2020: Math 187A (Introduction to Cryptography) (page not live yet, but see Alina Bucur's spring 2020 version); Math 204B (Number Theory) plus an epicourse. (See also Thomas Grubb's Math 157 site.)
 spring 2021: Math 206 (Topics in Algebraic Geometry). Probable topic: prismatic cohomology. I plan to make this course available online as well.
Teaching for 20192020 (see also my past courses):
 fall 2019: Math 206A (Topics in Algebraic Geometry).
 winter 2020: Math 157 (Intro to Math Software); Math 203B (Algebraic Geometry).
 spring 2020: none.
Office hours: throughout fall 2020, I will be holding Zoom office hours on Monday afternoons; email me to set up an appointment. I also host a social "RTG tea" Mondays 4:004:30pm PDT; email me for the link. (For course office hours, see the course home page.)
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 Vice 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.
Current grants: 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), 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 address opportunity gaps 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 some modification so that responses that take less time to write get written sooner. In particular, 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. I may be able to provide quick evaluations for papers that are sufficiently close to my expertise.

My direct supervision of students is typically limited to students at UCSD, and takes the following forms.
(Disregard if you found me through Math Alliance.)
 For undergraduates: faculty coordinator for an offcampus internship (Math 197), reading course/honors thesis (Math 199H).
 For graduate students: reading course/PhD thesis (Math 299), dissertation committee (including as an external member).
 Regarding recommendation letters, see my separate page.
 The UCSD math department has had some issues with its mail server, 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).
抱歉，我无法用中文回复电子邮件. (太难了!)