Spectral Theory of the Dirac Operator.
A discrete Hardy-Laptev-Weidl-type inequality and associated Schrödinger-type operators.
On the Limit-Point and Strong Limit-Point Classification of 2 n-th Order Differential Expressions with Widly Oscillating Coefficients.
Sharp estimates of the embedding constants for Besov spaces.
Sharp estimates are obtained for the rates of blow up of the norms of embeddings of Besov spaces in Lorentz spaces as the parameters approach critical values.
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