Я тут с двумя китайскими и одним российским студентами теорию накрытий ориентированных графов построил, связал её с путевыми гомологиями, построив спектральную последовательность, и применил для вычисления путевых гомологий некоторых графов Кэли.
Я тут с двумя китайскими и одним российским студентами теорию накрытий ориентированных графов построил, связал её с путевыми гомологиями, построив спектральную последовательность, и применил для вычисления путевых гомологий некоторых графов Кэли.
Telegram was founded in 2013 by two Russian brothers, Nikolai and Pavel Durov. This ability to mix the public and the private, as well as the ability to use bots to engage with users has proved to be problematic. In early 2021, a database selling phone numbers pulled from Facebook was selling numbers for $20 per lookup. Similarly, security researchers found a network of deepfake bots on the platform that were generating images of people submitted by users to create non-consensual imagery, some of which involved children. Some privacy experts say Telegram is not secure enough Despite Telegram's origins, its approach to users' security has privacy advocates worried. At its heart, Telegram is little more than a messaging app like WhatsApp or Signal. But it also offers open channels that enable a single user, or a group of users, to communicate with large numbers in a method similar to a Twitter account. This has proven to be both a blessing and a curse for Telegram and its users, since these channels can be used for both good and ill. Right now, as Wired reports, the app is a key way for Ukrainians to receive updates from the government during the invasion.
from fr
