This book is a brief and focused introduction to the reverse mathematics and computability theory of combinatorial principles, an area of research which has seen a particular surge of activity in the ...

This repo contains the working files for my personal lecture notes for Algebraic Topology 1 being taught in the Winter term of 2023/4 by Prof. Dr. Markus Hausmann at the University of Bonn. A compiled ...

:books: 计算机电子书 2018. Contribute to it-ebooks-0/it-ebooks-2018-allinone development by creating an account on GitHub.

These lecture notes are based on a series of lectures given at the Nankai Institute of Mathematics in the fall of 1998. They provide an overview of the work of the author and the late Chih-Han Sah on ...

Using a Times video series as a model, an English teacher puts her students in the director’s chair. By Michele Haiken “Masking” can help us navigate the world, but at what price? By Jeremy Engle ...