Bonfiglioli A., Lanconelli E., Uguzzoni F. Stratified Lie Groups and Potential Theory for their Sub-Laplacians

Springer, 2007. 802p. ISSN 1439-7382Monographs in Mathematics.
This series publishes advanced monographs giving well-written presentations of the state-of-the-art in fields of mathematical research that have acquired the maturity needed for such a treatment. They are suf-ficiently self-contained to be accessible to more than just the intimate specialists of the subject, and suffi-ciently comprehensive to remain valuable references formany years. Besides the current state of knowledge in its field, an SMM volume should also describe its relevance to and interaction with neighbouring fields of mathematics, and give pointers to future directions of research.