## National Mathematics Colloquium

UNION OF BULGARIAN MATHEMATICIANS INSTITUTE OF MATHEMATICS AND INFORMATICS, BULGARIAN ACADEMY OF SCIENCES NATIONAL MATHEMATICS COLLOQUIUM The next meeting of the National Mathematics Colloquium will be held on January 27, 2021 (Wednesday) at 4:15 p.m. online in Zoom at https://us02web.zoom.us/j/82089415188?pwd=d1JwU0hvdEtHSldYSHBGZ0FPRVpadz09. A talk on: Methodology for estimating the duration of the COVID-19 epidemic in a country, based on the newly developed ATVBG-SEIR models will be delivered by Prof. Ognyan Kounchev and Assist. Prof. Georgi Simeonov, IMI – BAS. ABSTRACT Everybody is invited. Head of the Colloquium: Acad. P. Popivanov