Gunter Ewald Books

Geometry: an introduction.

By Gunter Ewald

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Combinatorial Convexity and Algebraic Geometry

By Gunter Ewald

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This text provides an introduction to the theory of convex polytopes and polyhedral sets, to algebraic geometry and to the fascinating connections between these fields: the theory of toric varietie...

Stralsund. Die Stadt am Meer.

By Gunter Ewald, Harry Hardenberg, Herbert Ewe

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Probleme der geometrischen Analysis

By Gunter Ewald

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Geometrie

By Gunter Ewald

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Contributions to Functional Analysis

By H. Reiter, Harro Heuser, Joseph Nieto, P. Szeptycki, Ky Fan, Angus E. Taylor, J. B. Diaz, Nelson Dunford, Kosaku Yosida, Vlastimil Ptak, Gerhard Neubauer, Tosio Kato, Hubert Berens, Max Landsberg, Heinz Konig, H. O. Cordes, M. A. Naimark, Victor Klee, Shozo Koshi, Takako Komura, Richard Arens, Jean Leray, J. L. B. Cooper, R. E. Fullerton, H. G. Garnir, J. L. Kelley, Joseph Wloka, Hidegoro Nakano, E. Michael, Czeslaw Bessaga, Gunter Ewald, Felix E. Browder, C. C. Braunschweiger, R. S. Bucy, A. C. Zaanen, Gregers Krabbe, F. T. Metcalf, Helmut H. Schaefer, Horst Leptin, Thomas Riedrich, Stefan Hildebrandt, Yukio Komura, Anastasios Mallios, W. A. J. Luxemburg, Elmar Thoma, Jean Dieudonne, N. Aronszajn, Ebbe Thue Poulsen, G. Maltese, L. Waelbroeck, P. L. Butzer, A. Martineau, Bernhard Gramsch

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An der Schwelle zum Jenseits

By Gunter Ewald

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Gibt es ein Jenseits Auferstehungsglaube und Naturwissenschaften

By Gunter Ewald

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Combinatorial Convexity and Algebraic Geometry

By Gunter Ewald

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Combinatorial Convexity and Algebraic Geometry

By Gunter Ewald

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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.