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Q&A

General Q&A about all branches of theoretical and applied mathematics, including closely-adjacent sciences where the central question is about the math.

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71%
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44%
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Cyclical or “loop” fractals?

2 answers  ·  posted 3mo ago by Julius H.‭  ·  last activity 12d ago by pbloem‭

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Defining Bayes’s theorem from scratch in ZFC

1 answer  ·  posted 3mo ago by Julius H.‭  ·  last activity 1mo ago by xamidi‭

66%
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Using convexity in the proof of Hölder’s inequality

1 answer  ·  posted 4mo ago by Snoopy‭  ·  last activity 2mo ago by Snoopy‭

22%
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What are the Peano axioms?

1 answer  ·  posted 3mo ago by Julius H.‭  ·  last activity 2mo ago by rmf‭

66%
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28%
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40%
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66%
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matrix inverse of $I + A$ where $A$ is skew-symmetric

1 answer  ·  posted 3mo ago by Trevor‭  ·  last activity 3mo ago by Trevor‭

28%
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What is a dual object? [closed]

0 answers  ·  posted 3mo ago by Julius H.‭  ·  closed 3mo ago by Peter Taylor‭

66%
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37%
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66%
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The derivatives of a function at a boundary point

1 answer  ·  posted 4mo ago by tommi‭  ·  last activity 4mo ago by Snoopy‭

57%
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60%
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60%
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71%
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Is there a $(n_3)$ configuration which is not self-dual?

1 answer  ·  posted 5mo ago by WheatWizard‭  ·  last activity 5mo ago by Peter Taylor‭

66%
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80%
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What is special about the 11-cell and 57-cell?

1 answer  ·  posted 11mo ago by WheatWizard‭  ·  last activity 6mo ago by ziggurism‭