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Harnack Inequality and Hölder Regularity Estimates for a Lévy Process with Small Jumps of High Intensity

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Abstract

We consider a Lévy process in ℝd (d≥3) with the characteristic exponent

$$\varPhi(\xi)=\frac{|\xi|^2}{\ln(1+|\xi|^2)}-1.$$

The scale invariant Harnack inequality and a priori estimates of harmonic functions in Hölder spaces are proved.

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Correspondence to Ante Mimica.

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On leave from Department of Mathematics, University of Zagreb, Croatia.

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Mimica, A. Harnack Inequality and Hölder Regularity Estimates for a Lévy Process with Small Jumps of High Intensity. J Theor Probab 26, 329–348 (2013). https://doi.org/10.1007/s10959-011-0361-8

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  • DOI: https://doi.org/10.1007/s10959-011-0361-8

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