Christian U. Jensen Books

Generic Polynomials

By Arne Ledet, Noriko Yui, Christian U. Jensen

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"The main theme of the book is an exposition of a family of "generic" polynomials for certain finite groups, which give all Galois extensions having the required group as their Galois group. The ex...

Model theoretic algebra

By Christian U. Jensen

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Model Theoretic Algebra with Particular Emphasis on Fields Rings Modules

By Christian U. Jensen

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Model Theoretic Algebra with Particular Emphasis on Fields Rings Modules

By Christian U. Jensen

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Model Theoretic Algebra with Particular Emphasis on Fields Rings Modules

By Christian U. Jensen

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Model Theoretic Algebra with Particular Emphasis on Fields Rings Modules

By Christian U. Jensen

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Foncteurs Derives de Lim et Leurs Applications en Theorie des Modules

By C. U. Jensen

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How to Convert ISBN-10 to ISBN-13 (and Vice Versa): A Complete Guide

If you’re in the world of books—whether as a publisher, librarian, bookseller, or avid collector—you’ve likely come across the terms ISBN-10 and ISBN-13. Understanding these formats and knowing how to convert between them is essential for maintaining consistency and compatibility in book records. In this post, we’ll cover everything you need to know about ISBN conversions, step by step.

What is an EAN and How Does it Relate to an ISBN?

If you’ve ever purchased a product online or in a store, you’ve likely come across a barcode. Behind these barcodes lies a standardized system that makes modern commerce possible. Two key codes often encountered are the EAN (European Article Number) and ISBN (International Standard Book Number). But what are they, how are they connected, and why are they so crucial? Let’s explore.