Как ни странно, но даже чёткое определение, казалось бы, такого простого объекта, как многогранник, является не такой простой задачей. Желающим разобраться предлагаем посмотреть брошюру классика этой темы – Николай Петровича Долбилина – «Жемчужины теории многогранников».
Определения вершины многогранника можно давать разные. Но главной характеристикой вершины выпуклого многогранника является «недостаток угла» в этой точке https://etudes.ru/etudes/polyhedron-vertices/ .
Как ни странно, но даже чёткое определение, казалось бы, такого простого объекта, как многогранник, является не такой простой задачей. Желающим разобраться предлагаем посмотреть брошюру классика этой темы – Николай Петровича Долбилина – «Жемчужины теории многогранников».
Определения вершины многогранника можно давать разные. Но главной характеристикой вершины выпуклого многогранника является «недостаток угла» в этой точке https://etudes.ru/etudes/polyhedron-vertices/ .
The account, "War on Fakes," was created on February 24, the same day Russian President Vladimir Putin announced a "special military operation" and troops began invading Ukraine. The page is rife with disinformation, according to The Atlantic Council's Digital Forensic Research Lab, which studies digital extremism and published a report examining the channel. In a statement, the regulator said the search and seizure operation was carried out against seven individuals and one corporate entity at multiple locations in Ahmedabad and Bhavnagar in Gujarat, Neemuch in Madhya Pradesh, Delhi, and Mumbai. Given the pro-privacy stance of the platform, it’s taken as a given that it’ll be used for a number of reasons, not all of them good. And Telegram has been attached to a fair few scandals related to terrorism, sexual exploitation and crime. Back in 2015, Vox described Telegram as “ISIS’ app of choice,” saying that the platform’s real use is the ability to use channels to distribute material to large groups at once. Telegram has acted to remove public channels affiliated with terrorism, but Pavel Durov reiterated that he had no business snooping on private conversations. The fake Zelenskiy account reached 20,000 followers on Telegram before it was shut down, a remedial action that experts say is all too rare. At the start of 2018, the company attempted to launch an Initial Coin Offering (ICO) which would enable it to enable payments (and earn the cash that comes from doing so). The initial signals were promising, especially given Telegram’s user base is already fairly crypto-savvy. It raised an initial tranche of cash – worth more than a billion dollars – to help develop the coin before opening sales to the public. Unfortunately, third-party sales of coins bought in those initial fundraising rounds raised the ire of the SEC, which brought the hammer down on the whole operation. In 2020, officials ordered Telegram to pay a fine of $18.5 million and hand back much of the cash that it had raised.
from ua
