411 REFERENCE · Wiktionary
Flachmacher
Reference material by Wiktionary contributors. This retains its source identity and is not 411 news reporting.
German
de 2022 April 3
Etymology
Either de flachmachen -er or de flach Macher flat maker. Named such because these mappings make the manifold geometrically trivial; they iron, straighten or flatten it, intuitively speaking.
Pronunciation
de /ˈflaxˌmaxəʁ/ [ˈflaχˌmaχɐ]
de De-Flachmacher.ogg <<Germany>> (<<Berlin>>)
de Flach ma cher
Noun
m
de differential geometry coordinate chart
de Karte
de https://books.google.ch/books?id=hzEiBAAAQBAJ&lpg=PA106&dq=%22Flachmacher%22&pg=PA103#v=onepage&q=%22Flachmacher%22&f=false Mathematik 2: Geschrieben für Physiker Klaus Jänich Springer-Verlag Springer-Lehrbuch 9783642161506 1087350906 2011-01-15 103 Einen solchen Diffeomorphismus wollen wir, seiner anschaulichen Bedeutung nach, auch einen Flachmacher für um nennen. In einer anderen Sprechweise heißt ein Flachmacher eine äußere Karte für um , im Unterschied nämlich zur zugehörigen inneren Karte : We want to additionally call such a diffeomorphism , in accordance with its illustrative meaning, a flat maker for around . In another mode of speaking, a flat maker is also named an outer chart for around , in contrast namely to the corresponding inner chart :
Usage notes
More commonly used in introductory university classes and introductory literature because of its highly self-explanatory nature.
Declension
m