Unbounded coefficients

Author(s):  
Vassili N. Kolokoltsov
2021 ◽  
Vol 2021 (1) ◽  
Author(s):  
Kordan N. Ospanov

AbstractWe give some sufficient conditions for the existence and uniqueness of the solution of a higher-order linear differential equation with unbounded coefficients in the Hilbert space. We obtain some estimates for the weighted norms of the solution and its derivatives. Using these estimates, we show the conditions for the compactness of some integral operators associated with the resolvent.


2013 ◽  
Vol 28 (2) ◽  
pp. 140-153 ◽  
Author(s):  
Adam Czornik ◽  
Michał Niezabitowski

1970 ◽  
Vol 37 ◽  
pp. 5-12 ◽  
Author(s):  
Tadashi Kuroda

Let Rn be the n-dimensional Euclidean space, each point of which is denoted by its coordinate x = (x1,...,xn). The variable t is in the real half line [0, ∞).


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