Dusan Holý Books

USCO And Quasicontinuous Mappings

By .̲̲̲̲̲̲̲ Warren, Dusan Holý, Moors, Ľubica Holá, L'Ubica Holá, Holy, Warren Moors, Dusan, Holá, Ľubica

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"This book presents two natural generalizations of continuous mappings, namely usco and quasicontinuous mappings. The first class considers set-valued mappings, the second class relaxes the definit...

USCO And Quasicontinuous Mappings

By Dusan Holý, Ľubica Holá, L'Ubica Holá, Warren Moors

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USCO And Quasicontinuous Mappings

By Dusan Holý, L'Ubica Holá, Warren Moors, L’Ubica Holá; Dušan Holý; Warren Moors

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The series is devoted to the publication of monographs and high-level textbooks in mathematics, mathematical methods and their applications. Apart from covering important areas of current interest,...

Lidová Hudba : Výběrová Bibliografie

By Dusan Holý

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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.