celtschk‭

A quiet enigma. We don't know anything about celtschk‭ yet.

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Q&A Are there useful topologies on Cartesian products “in between” the product topology and the box topology?

1 answer · posted 5y ago by celtschk‭ · last activity 4mo ago by clemens‭

Question topology

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Q&A Classification of topological points

1 answer · posted 6y ago by celtschk‭ · last activity 5y ago by Technically Natural‭

Question topology

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Q&A Does there exist a non-zero game such that the sum of three or more copies of it is zero?

1 answer · posted 4y ago by celtschk‭ · last activity 4mo ago by clemens‭

Question combinatorial-game-theory

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Meta Why doesn't $ work?

posted 4y ago by celtschk‭ · edited 4y ago by DNB‭

Answer

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Q&A Does this construction always give a topological vector space?

1 answer · posted 5y ago by celtschk‭ · last activity 2y ago by JohnnyJohn‭

Question topology linear-algebra topological-vector-spaces

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Q&A For which spaces are all continuous functions either constant or the identity?

1 answer · posted 2y ago by celtschk‭ · last activity 3mo ago by clemens‭

Question topology

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Q&A All numbers are triangular modulo $N$ iff $N$ is a power of $2$?

2 answers · posted 2y ago by celtschk‭ · last activity 5mo ago by clemens‭

Question modular-arithmetic

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Q&A Are there other topologies on $\mathbb R$ that make it a topological field?

3 answers · posted 1y ago by celtschk‭ · last activity 6mo ago by clemens‭

Question topology

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Q&A Are 3 10% chances better than one 30% chance (when penalized by a variable for failures)?

posted 5y ago by celtschk‭

Answer

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Q&A Does this generalization of path-connectedness also cover general connectedness?

1 answer · posted 5y ago by celtschk‭ · last activity 2y ago by ronno‭

Question topology connectedness

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Q&A Why aren't $z_1=f(xy)$ and $z_2=f(x/y)$ functions of 2 variables?

posted 5y ago by celtschk‭

Answer

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Q&A Is this topology basis dependent?

1 answer · posted 5y ago by celtschk‭ · last activity 5y ago by Incnis Mrsi‭

Question topology linear-algebra topological-vector-spaces

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Q&A Is this a proper measure for irrationality?

1 answer · posted 11mo ago by celtschk‭ · last activity 11mo ago by r~~‭

Question classification

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Q&A Intuitively, why's X% of Y = Y% of X?

posted 5y ago by celtschk‭

Answer

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Q&A Is this formula for the minimal sum correct?

1 answer · posted 4y ago by celtschk‭ · last activity 4y ago by celtschk‭

Question set-theory ordinal-numbers

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