While I do spend lots of time pushing the idea of linear approximations on my students, we do need nonlinear functions to describe most interesting physical phenomena.

Almost perfect nonlinear (APN) functions play a pivotal role in cryptography, particularly in securing symmetric key algorithms against differential attacks. Their algebraic properties, including ...

Two teams found different ways for quantum computers to process nonlinear systems by first disguising them as linear ones.

We consider a nonlinear function-on-function additive regression model with multiple functional predictors. The forms of the nonlinear functions are unspecified, and offer great flexibility to model ...

This article reviews work on the planning of experiments with response functions nonlinear in some parameters. Apart from older work on dilution series experiments and quantal bioassays, this field is ...

The standard Kalman filter I've just summarized doesn't directly apply to nonlinear systems. However, if we linearize a nonlinear system we can use linear-estimation methods to estimate the states. In ...

A screenwriter makes the morph from films to games--and starts thinking differently.