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Report 2000-18

Analytic regularity of Stokes flow in polygonal domains

B.Q. Guo and C. Schwab

Abstract: We investigate the analytic regularity of the Stokes problem in a polygonal domain $\Omega \subset \R^2$ with straight sides and piecewise analytic data. We establish a shift theorem in weighted Sobolev spaces of arbitrary order with explicit control of the order-dependence of the constants. The shift-theorem in countably normed weighted Sobolev spaces implies in particular interior analyticity and Gevrey-type analytic regularity near the corners.

Paper: Available as PDF (821 KB) or as hardcopy to order reports@sam.math.ethz.ch.

 

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