The Hessian of the distance from a surface in the Heisenberg group.
Arcozzi, Nicola ; Ferrari, Fausto
Annales Academiae Scientiarum Fennicae. Mathematica, Tome 33 (2008), p. 35-63 / Harvested from The Electronic Library of Mathematics
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Publié le : 2008-01-01
EUDML-ID : urn:eudml:doc:129167 
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     title = {The Hessian of the distance from a surface in the Heisenberg group.},
     journal = {Annales Academiae Scientiarum Fennicae. Mathematica},
     volume = {33},
     year = {2008},
     pages = {35-63},
     zbl = {1142.49020},
     language = {en},
     url = {http://dml.mathdoc.fr/item/05245077}
}

Arcozzi, Nicola; Ferrari, Fausto. The Hessian of the distance from a surface in the Heisenberg group.. Annales Academiae Scientiarum Fennicae. Mathematica, Tome 33 (2008) pp. 35-63. http://gdmltest.u-ga.fr/item/05245077/