The event "Toposes online" represents the third e dition of the main international conference on top os theory, following the previous ones "Topos à l’IHES" and "Toposes in Como". T he format of the event is the same as that of the other two editions: it will consist of a three-day school, offering introductory courses for the ben efit of students and mathematicians who are not al ready familiar with topos theory, followed by a th ree-day congress featuring both invited and contri buted presentations on new theoretical advances in the subject as well as applications of toposes in different fields such as algebra, topology, numbe r theory, algebraic geometry, logic, homotopy theo ry, functional analysis, and computer science.
\n\nThe main aim of this conference series is to celebrate the unifying power and interdiscipli nary applications of toposes and encourage further developments in this spirit, by promoting exchang es amongst researchers in different branches of ma thematics who use toposes in their work and by int roducing a new generation of scholars to the subje ct.
\nThere is room for a lim ited number of contributed, 30-minute talks at the conference. If you want to present a paper, pleas e send an extended abstract (between two and four pages long) before the 31st of May; you will be no tified about the outcome of your submission by the 10th of June.
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