
doi: 10.1155/2011/825951
For the evolution equation y′(t) = Ay(t) with a scalar type spectral operator A in a Banach space, conditions on A are found that are necessary and sufficient for all weak solutions of the equation on [0, ∞) to be strongly infinite differentiable on [0, ∞) or [0, ∞). Certain effects of smoothness improvement of the weak solutions are analyzed.
Linear differential equations in abstract spaces, QA1-939, Mathematics
Linear differential equations in abstract spaces, QA1-939, Mathematics
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