Introduction

Abstract

The present book grew out of an overrating of my compeence. In September 2017 I was asked by Springer to give commentaries and make a report about a submitted manuscript dealing with Cauchy. I had to tell that I knew too little about Cauchy, and even less about research dealing with Cauchy and his mathematics, to be able to do that. I was then asked whether I could instead propose anything from my own hand, and I suggested an anthology containing mostly articles I have written within the last two decades. That was accepted, and later my selection was accepted by referees.