Wikipedia:Reference desk/Archives/Mathematics/January 2022

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January 2

Wikipedia:Reference_desk/Archives/Mathematics/2022 January 2

1. Most notable mathematical discovery by an amateur since WWII
2. Notation

January 5

Wikipedia:Reference_desk/Archives/Mathematics/2022 January 5

1. What is special about Cartesian coordinates?

January 6

Wikipedia:Reference_desk/Archives/Mathematics/2022 January 6

1. Gluing construction for the non-orientable flat 3-manifolds

January 12

Wikipedia:Reference_desk/Archives/Mathematics/2022 January 12

1. The sign of harmonic addition theorem

January 14

Wikipedia:Reference_desk/Archives/Mathematics/2022 January 14

1. How to prove that Chaitin constant is a normal number?
2. Continuum hypothesis is true.
3. “2ⁿ color theorem” in n dimensions?

January 18

Wikipedia:Reference_desk/Archives/Mathematics/2022 January 18

1. What's the name of the vertical bar notation?
2. cardinality of recursive set
3. Cuboctahedral dice (D14? D6/8?)

January 19

Wikipedia:Reference_desk/Archives/Mathematics/2022 January 19

1. rotationally symmetric circle graphs equivalent to regular polyhedra vertices and edges.

January 21

Wikipedia:Reference_desk/Archives/Mathematics/2022 January 21

1. Where do 2/P in Fourier coefficients come from?

January 22

Wikipedia:Reference_desk/Archives/Mathematics/2022 January 22

1. Zeros of the Riemann zeta function

January 23

Wikipedia:Reference_desk/Archives/Mathematics/2022 January 23

1. Dissections into equal parts