Surface temperature determination from borehole measurements: Regularization by cardinal series

Authors: Đinh Ngọc Thanh, Nguyễn Văn Nhân, Alain Pham Ngoc Dinh, Trần Thị Lệ,

https://doi.org/10.1016/S0362-546X(01)00802-1

Publisher, magazine: ,

Publication year: 2002

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Abstract

The authors consider the problem of recovering the temperature on the surface of a heat conducting half-plane from temperature measurements on an interior line, given the initial temperature. The problem, which is ill-posed, is regularized by truncated integration and expansion in cardinal series. Error estimates and numerical results are given, and an illustrative figure is produced.

Tags: heat equation surface temperature; inner temperature; regularization; cardinal series; error estimate