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  2. List of musical supergroups - Wikipedia

    en.wikipedia.org/wiki/List_of_musical_supergroups

    Nick Massi (The Hollywood Playboys, among others [2] [3]) replaced Calello from late 1960 to September 1965.; Several studio albums and over 100 singles.Originally assembled from various New Jersey club groups, over the years, other notable names, including Don Ciccone (The Critters), John Paiva (The Happenings), Jerry Corbetta and session keyboardist Robby Robinson came and went as performers ...

  3. Group extension - Wikipedia

    en.wikipedia.org/wiki/Group_extension

    The question of what groups are extensions of by is called the extension problem, and has been studied heavily since the late nineteenth century.As to its motivation, consider that the composition series of a finite group is a finite sequence of subgroups {}, where each {+} is an extension of {} by some simple group.

  4. Telegram (software) - Wikipedia

    en.wikipedia.org/wiki/Telegram_(software)

    Telegram Messenger, commonly known as Telegram, is a cloud-based, cross-platform, social media and instant messaging (IM) service. It was originally launched for iOS on 14 August 2013 and Android on 20 October 2013. It allows users to exchange messages, share media and files, and hold private and group voice or video calls as well as public ...

  5. Supergroup (physics) - Wikipedia

    en.wikipedia.org/wiki/Supergroup_(physics)

    The concept of supergroup is a generalization of that of group. In other words, every supergroup carries a natural group structure, but there may be more than one way to structure a given group as a supergroup. A supergroup is like a Lie group in that there is a well defined notion of smooth function defined on them. However the functions may ...

  6. Telegraphy - Wikipedia

    en.wikipedia.org/wiki/Telegraphy

    A telegram service is a company or public entity that delivers telegraphed messages directly to the recipient. Telegram services were not inaugurated until electric telegraphy became available. Earlier optical systems were largely limited to official government and military purposes.

  7. Supergroup (biology) - Wikipedia

    en.wikipedia.org/wiki/Supergroup_(biology)

    A supergroup, in evolutionary biology, is a large group of organisms that share one common ancestor and have important defining characteristics. It is an informal, mostly arbitrary rank in biological taxonomy that is often greater than phylum or kingdom , although some supergroups are also treated as phyla .

  8. Telegram style - Wikipedia

    en.wikipedia.org/wiki/Telegram_style

    This telegram was sent by Orville Wright in December 1903 from Kitty Hawk, North Carolina, following the first successful airplane flight. Telegram style , telegraph style , telegraphic style , or telegraphese [ 1 ] is a clipped way of writing which abbreviates words and packs information into the smallest possible number of words or characters.

  9. Super-Poincaré algebra - Wikipedia

    en.wikipedia.org/wiki/Super-Poincaré_algebra

    Just as the Poincaré algebra generates the Poincaré group of isometries of Minkowski space, the super-Poincaré algebra, an example of a Lie super-algebra, generates what is known as a supergroup. This can be used to define superspace with N {\displaystyle {\mathcal {N}}} supercharges: these are the right cosets of the Lorentz group within ...