This is one of the key papers on singular integral operators.

All working systems, including those incorporating advanced technology of processes and process control, depend on skilled operators.

But rules are being drafted that would heap regulatory and financial pressures on operators.

Do they think they have a monopoly on operators, too?

To make the first contact with these ideas, let us look more precisely on operators .

Perhaps most important was his work with Calderón on singular integral operators.

See the article on self-adjoint operators for a full treatment.

This body provides a common fare structure that allows travel on various operators in and around Berlin.

If we try at this stage to impose on operators the burdens of the universal service, it will result in a fatal price increase.

Making a further change would add an unnecessary burden on operators without bringing any greater safety guarantees.