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Henno Brandsma's user avatar
Henno Brandsma's user avatar
Henno Brandsma's user avatar
Henno Brandsma
  • Member for 13 years, 5 months
  • Last seen more than 2 years ago
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About

Henno Brandsma (1970-2022)

Got a PhD in topology in 98, now a cryptographer and security researcher.

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Top posts
answer
6
Was “lukewarm” a way of saying “warm warm”?
Nov 7, 2018
answer
2
Should I say "I derive the equation", "I derivate the equation" or "I differentiate the equation"?
Nov 13, 2018
Top network posts
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110
Elementary proof that $\mathbb{R}^n$ is not homeomorphic to $\mathbb{R}^m$
104
A map is continuous if and only if for every set, the image of closure is contained in the closure of image
93
Projection map being a closed map
92
How secure is Chrome storing a password?
72
Is $\mathbb R^3$ the square of some topological space?