The deal, subject to government approval would create the world's largest exchange operator for mining stocks.

It is the second largest betting exchange operator in the market, with Betfair being the largest.

He was said to be convinced that she, as one of the manual telephone exchange operators was sending calls "to the undertaker" to her husband.

"Get me Prospect 83945," he said when the exchange operator in the lobby asked for his number.

Let us define a linear operator P, called the exchange operator.

The user alerted the other end, or the exchange operator, by whistling into the transmitter.

All of Euronext's markets are operated by its subsidiaries, each of which holds a national license as an exchange operator.

Since the particles are identical, the notion of exchange symmetry requires that the exchange operator be unitary.

Therefore it is always possible and usually most convenient to choose a basis in which the states are eigenstates of the exchange operator.

The exchange operator is not well defined in a strictly 1-dimensional system, though there are constructions of 1-dimensional networks that behave as effective 2-dimensional systems.