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Open System – Ark's blog
Monthly Archives: December 2010
Notes on Ehresmann’s connections -Part 2, Frölicher–Nijenhuis bracket
In this note I shall introduce the Frölicher-Nijenhuis bracket – a powerful tool, especially when dealing with connections on fibre bundles. Continue reading
Posted in Geometry, Nauka (science)
3 Comments
Notes on Ehresmann’s connections -Part 1
A preferred distribution of horizontal subspaces is determined by what is called an Ehresmann connection. Continue reading
Posted in Geometry, Nauka (science)
7 Comments
Einstein, prędkości, styczne
W Relatywistycznym składaniu prędkości wyprowadziliśmy wzór na składanie prędkości w ramach szczególnej teorii względności. Oznaczmy przez bezwymiarową prędkość względną układu odniesienia S’ względem układu odniesienia S. Niech będzie prędkością S” względem S’ – przy czym S” i S’ poruszają się … Continue reading
