# Toby Sanders, Ph.D.

Magnetic Insight, Inc.

Email: SANDERTL20@gmail.com

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Below are links to various documents on selected topics that I have written over time. They are useful for me to reference back to from time to time, and perhaps someone else may find them useful. Some are less formal than others.

Stein's Unbiased Risk Estimator (SURE) Versus Maximum Likelihood (ML) in Inverse Problems

Informal Notes on Lagrange Multiplier Theory and the Augmented Lagrangian Function

A Brief Discussion: Image Sharpening versus Image Deconvolution

Notes on automated parameter selection for regularization methods in signal and image reconstruction

Determining Noise Levels in Blurry Image Data

Introduction to the Mathematical Theory of Wavelets

An Introduction to Compressed Sensing

Chebyshev's Alternating Theorem

Whitney's Theorem: A detailed proof of Whitney's Theorem from 1957.