Horizontal normal map on the Heisenberg group (JNCA)
Volume 12
Number 2
pp. 287-307

Horizontal normal map on the Heisenberg group
A. Calogero and R. Pini

Key words Mathematices Subject Classification
Heisenberg group, convex function, horizontal subdifferential, horizontal normal map, Monge--Amp\`ere measure, Rockafellar function Primary 52A01; Secondary 26B25, 22E15

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