Please use this identifier to cite or link to this item: http://hdl.handle.net/10077/4119
Title: On Approximation of Linear Second Order Elliptic Partial Differential Equations with Analytic Coefficients
Authors: Kumar, Devendra
Keywords: Elliptic Partial Differential EquationsBergman and Gilbert Integral OperatorOrder and TypeApproximation Error
Issue Date: 2007
Publisher: EUT Edizioni Università di Trieste
Source: Devendra Kumar, "On Approximation of Linear Second Order Elliptic Partial Differential Equations with Analytic Coefficients”, in: Rendiconti dell’Istituto di Matematica dell’Università di Trieste. An International Journal of Mathematics, 39 (2007), pp. 359–373.
Series/Report no.: Rendiconti dell’Istituto di Matematica dell’Università di Trieste. An International Journal of Mathematics
39 (2007)
Abstract: 
The linear second-order elliptic differential equation
with real-valued coefficients that are entire functions on $\Im^2$
and whose coefficient $c(x, y) \leq 0$ on the disk $D : x^2+y^2\leq1$
is given by
$\Delta^2 v+a(x,y)v_x + b(x,y)v_y+c(x,y)v=0, (x,y)\in E^2$.
The ideas of Bernstein and Saff have been applied by McCoy [9,
10] to study the singularities of certain second-order elliptic equations
with singular coefficients. These results contain calculations
of order and type of entire function potentials in terms
of best polynomial approximation errors. Here some inequalities
concerning order and type for the given equation have been
obtained.
Type: Article
URI: http://hdl.handle.net/10077/4119
ISSN: 0049-4704
Appears in Collections:Rendiconti dell'Istituto di Matematica dell'Università di Trieste: an International Journal of Mathematics vol.39 (2007)

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