«…одна и та же задача может иметь “вложенные“ в нее интересные частные случаи, и в то же время может оказаться “вложенной” в более общую теорему. О примерах таких “математических матрёшек” рассказывает Павел Александрович Кожевников…»
«…одна и та же задача может иметь “вложенные“ в нее интересные частные случаи, и в то же время может оказаться “вложенной” в более общую теорему. О примерах таких “математических матрёшек” рассказывает Павел Александрович Кожевников…»
Again, in contrast to Facebook, Google and Twitter, Telegram's founder Pavel Durov runs his company in relative secrecy from Dubai. One thing that Telegram now offers to all users is the ability to “disappear” messages or set remote deletion deadlines. That enables users to have much more control over how long people can access what you’re sending them. Given that Russian law enforcement officials are reportedly (via Insider) stopping people in the street and demanding to read their text messages, this could be vital to protect individuals from reprisals. Stocks closed in the red Friday as investors weighed upbeat remarks from Russian President Vladimir Putin about diplomatic discussions with Ukraine against a weaker-than-expected print on U.S. consumer sentiment. Despite Telegram's origins, its approach to users' security has privacy advocates worried. Crude oil prices edged higher after tumbling on Thursday, when U.S. West Texas intermediate slid back below $110 per barrel after topping as much as $130 a barrel in recent sessions. Still, gas prices at the pump rose to fresh highs.
from es