The recently re-discovered multipole vector approach to understanding the harmonic decomposition of the cosmic microwave background traces its roots to Maxwell's Treatise on Electricity and Magnetism. Taking Maxwell's directional derivative approach as a starting point,... View more
 C. Bennett et al., First year Wilkinson Microwave Anisotropy Probe (WMAP 1) observations: preliminary maps and basic results, Astrophysical Journal Supplement Series 148 (2003), 1-27.
 M. Tegmark, A. de Oliveira-Costa and A.J.S. Hamilton, A high resolution foreground cleaned CMB map from WMAP, Phys. Rev. D68 (2003) 123523, astro-ph/0302496.
 H.K. Eriksen, F.K. Hansen, A.J. Banday, K.M. G´orski and P.B. Lilje, Asymmetries in the cosmic microwave background anisotropy field, Astrophys. J. 605 (2004) 14-20, astro-ph/0307507.
 H.K. Eriksen, A.J. Banday, K.M. G´orski and P.B. Lilje, On foreground removal from the Wilkinson Microwave Anisotropy Probe data by an internal linear combination method: limitations and implications, Astrophys. J. 612 (2004) 633-646, astro-ph/0403098.
 C.J. Copi, D. Huterer and G.D. Starkman, Multipole vectors - a new representation of the CMB sky and evidence for statistical anisotropy or non-Gaussianity at 2 ≤ ℓ ≤ 8, Phys. Rev. D70 (2003) 043515, astro-ph/0310511.
 D.J. Schwarz, G.D. Starkman, D. Huterer and C.J. Copi, Is the low-ℓ microwave background cosmic?, Phys. Rev. Lett. 93 (2004) 221301, astro-ph/0403353.
 G. Katz and J. Weeks, Polynomial interpretation of multipole vectors, Phys. Rev. D70 (2004) 063527, astro-ph/0405631.
 C.J. Copi, Multipole Vectors Information, web site phys.cwru.edu/ projects/mpvectors/ , version of 4 November 2004.
 James Clerk Maxwell, A Treatise on Electricity and Magnetism, 1st ed. 1873, 3rd ed. 1891, reprinted by Dover Publications, 1954.
 M. Dennis, Canonical representation of spherical functions: Sylvester's theorem, Maxwell's multipoles and Majorana's sphere, J. Phys. A 37 (2004) 9487-9500, math-ph/0408046.