Wikipedia:Reference desk/Archives/Mathematics/January 2022

= January 2 = Reference_desk/Archives/Mathematics/2022 January 2


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

= January 5 = Reference_desk/Archives/Mathematics/2022 January 5


 * 1) What is special about Cartesian coordinates?

= January 6 = Reference_desk/Archives/Mathematics/2022 January 6


 * 1) Gluing construction for the non-orientable flat 3-manifolds

= January 12 = Reference_desk/Archives/Mathematics/2022 January 12


 * 1) The sign of harmonic addition theorem

= January 14 = 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 = 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 = Reference_desk/Archives/Mathematics/2022 January 19


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

= January 21 = Reference_desk/Archives/Mathematics/2022 January 21


 * 1) Where do $2⁄P$ in Fourier coefficients come from?

= January 22 = Reference_desk/Archives/Mathematics/2022 January 22


 * 1) Zeros of the Riemann zeta function

= January 23 = Reference_desk/Archives/Mathematics/2022 January 23


 * 1) Dissections into equal parts