Page Layout ⇒ Linebreak before/after subsubsection and paragraph headings

[genetix]

Hello,

I am trying to modify the subsubsection and paragraph headings for a document which uses the documentclass amsbook but so far I have been only half successful.
I have searched this forum and found the sectsty package and I managed to change the font settings etc. but I wasn't able to find a solution to the follwing problem: How can I automatically insert a newline before and after a subsubsection/paragraph heading? The goal is to make subsubsection headings look the same as subsection headings, just smaller. I cannot even insert the linebreaks manually using \\ or an empty line. The headings still remain in the same line as the remainder of the text.

Can anyone give me a hint, please?

Best regards,
Anja

[localghost]

At first you should typeset the code below, look at the output and then clarify if we're still talking about the sectioning commands you mentioned.

Code: Select all

\documentclass[11pt,a4paper,english]{amsbook}
\usepackage[T1]{fontenc}
\usepackage[latin1]{inputenc}
\usepackage{babel}
\usepackage{blindtext}

\begin{document}
  \blinddocument
\end{document}

Best regards and welcome to the board
Thorsten

[genetix]

Thank you a lot for your reply. I've tried it out and found the mistake in my previous posting. Sorry, actually, I am trying to make the commands

/subsection
/subsubsection
/paragraph

behave in the same way as /section (not /subsection):

-some space before the heading
-Heading (no plain text in the same line as the heading)
-some space after the heading
...Plain text...

Best regards,
Anja