The paper describes a method to extract navigational information from link structure in Blogosphere such as Everything2. The purpose of the method is to support readers of weblogs in selecting hyperlinks from scattered anchor texts in the web pages by providing navigational information. The navigational information consists of hyperlinks that are organized with approximate subsumption relations...

In quantum teleportation, an unknown quantum state is transmitted from one party to another using only local operations and classical communication, at the cost of shared entanglement. Is possible similarly, using an N party entangled state, to have the state retrievable by any of the N − 1 possible receivers? If the receivers cooperate, and share a suitable state, this can be done reliably. Th...

After this paper was completed, we learned that the main result had in fact been proved much earlier by R.A. Rankin (”Sets of integers containing not more than a given number of terms in arithmetical progression”, Proc. Roy. Soc. Edinburgh Sect. A 65 (1960/1961), 332–344). Since very few people appear to have been aware of that result, I have decided to leave the present paper on my web page as...

0

0