1. Chapter 3 - Group Theory A Group is a collection of elements which is: i) closedunder some single-valuedassociative binary operation ii) contains a singleelement satisfyingthe…
Slide 1ICDCS 2008 @ Beijing China Routing of XML and XPath Queries in Data Dissemination Networks Guoli Li, Shuang Hou Hans-Arno Jacobsen Middleware Systems Research Group…