Accretivity and form boundedness of second order differential operators (PAFA)
	Volume 5, Number 2, 391-406, 2020 Accretivity and form boundedness of second order differential operators Vladimir G. Maz'ya and Igor E. Verbitsky    ONLINE SUBSCRIPTION (Library Only) PDF   PDF   Open Access (Free) Flash   Flash              Copyright © 2020 Yokohama Publishers