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Mar 19, 2018 at 4:03 comment added Francois Ziegler Related: What is the historical origin for the use of the symbol ∂ in topology?
Dec 10, 2009 at 20:48 comment added Mikael Vejdemo-Johansson Also, boundary is Rand in german, with boundaries translating to Ränder.
Dec 9, 2009 at 9:06 comment added Lennart Meier Probably one reason for using the first letters of the German words here is that in English 'cycle' and 'chains' have the same first letter.
Dec 9, 2009 at 8:40 comment added Konrad Voelkel Z is for "Zykel" which means cycles, and B is for "Bilder" which means "images". (I'm german and that is what I learned in my german algebraic topology class)
Dec 9, 2009 at 4:23 history made wiki Post Made Community Wiki by Anton Geraschenko
Dec 9, 2009 at 3:34 history answered liuyao CC BY-SA 2.5