Title
Pointwise Computation in an Ill-Posed Spherical Pseudo-Differential Equation.
Abstract
In the present paper, we consider the approximation of the solution of an ill-posed spherical pseudo-differential equation at a given point. While the methods for approximating the whole solution are well-studied in Hilbert spaces, such as the space of square-summable functions, the computation of values of the solution at given points is much less studied. This can be explained, in particular, by the fact that for square-summable functions the functional of pointwise evaluation is, in general, not well defined. To overcome this limitation we adjust the regularized least-squares method of An, Chen, Sloan and Womersley [1] by using a special a posteriori parameter choice rule. We also illustrate our theoretical findings by numerical results for the reconstruction of the solution at a given point.
Year
DOI
Venue
2015
10.1515/cmam-2015-0006
COMPUTATIONAL METHODS IN APPLIED MATHEMATICS
Keywords
DocType
Volume
Spherical Pseudo-Differential Equations,Balancing Principle,Spherical Harmonics,Regularization
Journal
15
Issue
ISSN
Citations 
2
1609-4840
1
PageRank 
References 
Authors
0.38
0
2
Name
Order
Citations
PageRank
Sergei V. Pereverzyev1204.29
Pavlo Tkachenko284.26