European Congress of Mathematics
Portorož (Slovenia)
June 20 - 26, 2021
https://www.8ecm.si/
International Scientific and Practical Conference
INFORMATION TECHNOLOGIES AND COMPUTER MODELLING
Ivano-Frankivsk – Yaremche (Ukraine)
July 5 - 10, 2021
https://itcm.comp-sc.if.ua/
10th International Conference on Mathematical Modeling
in Physical Sciences
September 6-9, 2021
https://www.icmsquare.net/
9th International Conference on Computational Methods and Function Theory
(CMFT 2021)
Valparaiso (Chile)
January 10–14, 2022
http://cmft2021.inf.utfsm.cl/
PostNauka - all You want to know about science, but don't know who to ask -
http://postnauka.ru/
Proofs.Wiki Free, community-based web resource dedicated to collecting and providing rigorous definitions, proofs and theorems in all of mathematics, physics, chemistry, computer science and biology -
http://proofs.wiki/