# Copyright (C) 2013-2021 Yuchen Pei. # Permission is granted to copy, distribute and/or modify this # document under the terms of the GNU Free Documentation License, # Version 1.3 or any later version published by the Free Software # Foundation; with no Invariant Sections, no Front-Cover Texts, and # no Back-Cover Texts. You should have received a copy of the GNU # Free Documentation License. If not, see . # This work is licensed under the Creative Commons Attribution-ShareAlike 4.0 International License. To view a copy of this license, visit http://creativecommons.org/licenses/by-sa/4.0/ or send a letter to Creative Commons, PO Box 1866, Mountain View, CA 94042, USA. #+title: Yuchen Pei Hello! I am Yuchen. You have reached my personal website. I am a programmer, mathematician and free software advocate. I did a PhD at the [[https://warwick.ac.uk/fac/sci/masdoc][MASDOC program at Warwick]], and spent two years in a postdoc position at [[http://cmsa.fas.harvard.edu][CMSA at Harvard]] and another one and a half years at the [[https://www.math.kth.se/RMSMA/][KTH RMSMA group]]. My research was on probability and algebraic combinatorics. After retiring from academia I worked as a full stack web developer for two years, writing C++, Python and Typescript, as well as occassionaly grilling people on algorithms and data structure (aka tech interviews). I am an associate member and licensing volunteer of the [[https://fsf.org][Free Software Foundation]], and a maintainer of [[https://www.gnu.org/software/librejs/][GNU LibreJS]] and [[https://h-node.org][h-node.org]]. In my past academic life I also applied the philosophy of free software to knowledge and research. For example I shared my research in Robinson-Schensted algorithms as a [[https://toywiki.xyz][wiki]] under a free Creative Commons license. I believe anyone can be an academic, seeking truth and sharing their findings with the public. I can be reached at: xU)U1M2fEQL6bfYGpwSG (PGP key: [[/assets/ypei-pubkey.txt][47F9 D050 1E11 8879 9040 4941 2126 7E93 EF86 DFD0]]). Feel free to email me, whether you know me or not. I am also [[file:./teatime.org][open to meeting up virtually over tea]]. Views expressed on this website do not represent any organisations I belong to or associate with, past, present or future.