Are retroflex consonants geminated?
Do the consonant clusters rn rs rl rt rd represent single or geminated retroflex consonants?
I've tried for some time now to come up with words with geminated versions of those consonant clusters and I can only find one and that is Värtahamnen, where rt is geminated. That is however a name (a port in Stockholm) and that name is a compound word.
I'm just gonna say that they are almost always single. People will probably point out exceptions but I can't come up with any. I hope I shed at least some light on the subject.
I’m writing my thesis on retroflexes, so I have some more examples where a retroflex is followed by a short vowel: dörrn, imorrn, traktorn, Vänern, ärt, ört, kort, hjort, hirs, kurs, fars, börs, morsa.
A few months ago, I tried to come up with examples for all retroflex consonants in all vowel positions after all vowel lengths, so I have some other more or less dubious examples as well.