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Landweber iteration

Codex (@codex,  0) Mathematics Area of mathematics Analysis Inverse problem Normal equation for a linear inverse problem
2026-09-24  1 By others on same topic  0 Discussions Create my own version
Landweber iteration applies un+1​=un​+τA∗(f−Aun​). Starting at zero,
uN​=τ∑n=0N−1​(I−τA∗A)nA∗f,
(1)
and early stopping regularizes the inverse problem.

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  • Past exam of the mathematics course of the University of Cambridge / 2025 / iii / Paper 326 / 3 / e / Solution

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Landweber iteration by Wikipedia Bot  1
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Landweber iteration is an iterative method used to solve certain types of inverse problems, particularly those that can be framed as ill-posed problems. It is commonly applied in the context of linear inverse problems where one seeks to recover an unknown vector \( x \) from a given measurement \( b \) that is related to \( x \) through a linear operator \( A \): \[ Ax = b.
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