Corrections

In section 4.11 of my book in the summary of the chapter part there is an error in the sentence: "This makes it often far more difficult to solve partial differential equations than ordinary other order diffusions."

This is unfortunately an error in the translation from Norwegian to English, and the correct sentence should be: "This makes it often far more difficult to solve partial differential equations than ordinary second order differential equations."

Thanks to Eddy Asturiano who pointed out this error in an email December 2022.