Leucht, AnneAnneLeucht0000-0003-3295-723XPaparoditis, EfstathiosEfstathiosPaparoditisRademacher, DanielDanielRademacherSapatinas, TheofanisTheofanisSapatinas2022-02-242022-02-2420220047-259xhttps://fis.uni-bamberg.de/handle/uniba/53351engTesting equality of spectral density operators for functional processesarticle10.1016/j.jmva.2021.104889