bn:02240381n
Noun Concept
Categories: Differential geometry, Complex analysis, All articles needing additional references, Hyperbolic geometry, Articles with short description
EN
upper half-plane  closed upper half-plane  complex upper half-plane  lower half-plane  Lower half plane
EN
In mathematics, the upper half-plane, H {\displaystyle \,{\mathcal {H}}\,}, is the set of points {\displaystyle } in the Cartesian plane with y > 0 {\displaystyle y>0}. Wikipedia
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EN
In mathematics, the upper half-plane, H {\displaystyle \,{\mathcal {H}}\,}, is the set of points {\displaystyle } in the Cartesian plane with y > 0 {\displaystyle y>0}. Wikipedia
Complex numbers with positive imaginary part Wikidata