EDNOTE. In resonse to my query Dr. Maria Dmitrovskaya at Kalingrad State University, reports:
 
Five  of my grad students are writing on Nabokov's language. Their topics are:
The Emotionally Evaluative Lexicon in VN's Works: Chudnyi [wonderful],Volshebnyi [enchanting],            Vosxititel'nyi [entrancing]
Linguistic Means of Expression for Doubleness In DESPAIR
The System of  Names for the Protagonist in LOLITA
The Concept of Fate in VN's Works
Nabokov's Color Designations
 
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U menya 5 aspirantov, kotoryye pishut po yazyku Nabokova.
Temy raznyye:
- Emotscional'no otscenochnaya leksika v proizvedeniyach Nabokova [o slovach
chudnyy, volshebnyy, voschititel'nyy, etc,]

-  Yazykovyye sredstva vyrazheniya idti dvoynichestva v romane "Otchayaniye"
- Sistema niminatsciy glavnogo geroya v romane Lolita
- Koncept sud'by v proizvedeniyach Nabokova
- Tshvetooboznacheniya u Nabokova.