\markboth{leftTEXT}{rightTEXT}
.
Then, odd page headers will display rightTEXT
while even page
headers will display leftTEXT
together with the page number.
The command \head{headTEXT}
will put the string headTEXT
on the header of the title page.
Inserting the commands \thispagestyle{empty}
and
\pagestyle{empty}
just after the \maketitle
command removes any text from the
headers, leaving them empty.