Perhaps you should try some spelling variations:
"iteration theory, advances and applications" » "interaction theory, advances and applications", "vibration theory, advances and applications", "interpolation theory, advances and applications"
"operator theory, advances and applications" » "operators theory, advances and applications", "operation theory, advances and applications"

Try widening your search to All Fields.

You may be able to get more results by adjusting your search query.

• If you are trying to use Boolean operators, they must be ALL CAPS: (("operator theory, advances and applications") OR ((("iteration theory, advances and applications") OR ("integration theory, advances and applications")))).
• Removing quotes may allow a broader search: (( operator theory, advances and applications ) or ((( iteration theory, advances and applications ) or ( integration theory, advances and applications )))).
• Adding a wildcard symbol may retrieve word variants: (("operator theory, advances and applications") or ((("iteration theory, advances and applications") or ("integration theory, advances and applications"))))*.