Hi, I'm calculating the Raman spectrum of a system and in the output I have that some values of the polarizability tensor are asterisks (divergences?). What problem could there be? Thank you for any help or suggestions. Simone -- You received this message because you are subscribed to the Google Groups "cp2k" group. To unsubscribe from this group and stop receiving emails from it, send an email to <a href="mailto:cp2k+unsubscribe@googlegroups.com">cp2k+unsubscribe@googlegroups.com</a>. To view this discussion on the web visit <a href="https://groups.google.com/d/msgid/cp2k/14b6a4b8-369f-4967-aaab-d99ac550305fn%40googlegroups.com?utm_medium=email&utm_source=footer">https://groups.google.com/d/msgid/cp2k/14b6a4b8-369f-4967-aaab-d99ac550305fn%40googlegroups.com</a>.