Hello! I discovered that latex2html treats them differently. Translating $f(n,k,\dots)$ and $g(n,k,\dots)$ i've got <I>f</I> (<I>n</I>, <I>k</I>,...) and <I>g</I>(<I>n</I>, <I>k</I>,...) (i skiped <!--MATH --> comments) with space after "f", but not after "g". Vadim