This is the 5479th most frequent Russian word.
подвергнуты
"Subjected to."
The word 'подвергнуты' indicates that the documents underwent a process of detailed examination.
Документы были подвергнуты тщательной проверке.
The documents were subjected to thorough scrutiny.
Here, 'подвергнуты' signifies that the buildings are being subjected to a process of renovation or improvement.
Здания подвергнуты реконструкции после урагана.
The buildings are undergoing reconstruction after the hurricane.
In this case, 'подвергнуты' means that the ideas are often analyzed or critiqued due to their nature.