Analytic surface
in a Euclidean space
An arbitrary two-dimensional analytic submanifold in the space
,
. However, the term "analytic surface in Rn" is often employed in a wider sense as a manifold which is (locally) analytically parametrizable. This means that the coordinates of the points
can be represented by analytic functions
of a real parameter
which varies in a certain range
,
. If the rank of the Jacobi matrix
, which for an analytic manifold is maximal everywhere in
, is equal to
, then the dimension of the analytic surface
is
.
In the complex space the term "analytic surface" is also employed to denote a complex-analytic surface
in
, i.e. a manifold which allows a holomorphic (complex-analytic) parametrization. This means that the complex coordinates of points
can be expressed by holomorphic functions
of a parameter
which varies within a certain range
(it is also usually assumed that
). If
and all the functions
are linear, one obtains a complex-analytic plane (cf. Analytic plane). If
, the term which is sometimes employed is holomorphic curve (complex-analytic curve); if all functions
are linear, one speaks of a complex straight line in the parametric representation:
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References
[1] | B.V. Shabat, "Introduction of complex analysis" , 1–2 , Moscow (1976) (In Russian) |
[2] | V.S. Vladimirov, "Methods of the theory of functions of several complex variables" , M.I.T. (1966) pp. Chapt. 2 (Translated from Russian) |
Analytic surface. Encyclopedia of Mathematics. URL: http://encyclopediaofmath.org/index.php?title=Analytic_surface&oldid=11625