The domain of a relation is the set that contains all the first elements, x, from the ordered pairs (x,y) that make up the relation. In mathematics, a relation is defined as a set of ordered pairs (x,y) for which each y depends on x in a predetermined...

The set of values a variable can take. See also: continuous variable; discrete...

In mathematics, a domain is most often defined as the set of values, D for which a function is defined.[1] A function that has a domain N is said to be a function over N, where N is an arbitrary...

The Internet's key oversight agency is investigating suspicions that insider information is being used to snatch desired domain names before an individual or business can register them.The Security and Stability Advisory Committee of the Internet Corporation for Assigned Names and Numbers termed the practice "domain...

A company that sells Internet domain names is facing criticisms for holding some in reserve as a consumer-protection measure, a move that also prevents interested parties from shopping around for better prices.After weeks of testing, Network Solutions LLC began this week to grab names that...

Internet addresses ending in ".asia" will be open to governments and trademark owners starting in October, with general registrations coming in 2008.The initial round, which starts Oct. 9, is limited to governments desiring geographical names such as "china.asia" and those with trademarks applied before March...

Sample addresses in nearly a dozen languages will be added to the Internet's central directories as early as next week, paving the way for Web surfers around the world to get online without knowing any English.At this point, the 11 domain names are meant primarily...