Gauss - Legendre sky pixelization (GLESP) for CMB maps

@article{Doroshkevich2005GaussL,
  title={Gauss - Legendre sky pixelization (GLESP) for CMB maps},
  author={Andrei G. Doroshkevich and Pavel D. Naselsky and O. V. Verkhodanov and Dmitry I. Novikov and V. I. Turchaninov and Igor Novikov and Per Rex Christensen and L. Y. Chiang},
  journal={International Journal of Modern Physics D},
  year={2005},
  volume={14},
  pages={275-290}
}
A new scheme of sky pixelization is developed for CMB maps. The scheme is based on the Gauss–Legendre polynomials zeros and allows one to create strict orthogonal expansion of the map. A corresponding code has been implemented and comparison with other methods has been done. 

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