scholarly journals Pitt's inequality and the fractional Laplacian: Sharp error estimates

2012 ◽  
Vol 24 (1) ◽  
Author(s):  
William Beckner

2019 ◽  
Vol 57 (4) ◽  
pp. 2775-2798 ◽  
Author(s):  
Marta D'Elia ◽  
Christian Glusa ◽  
Enrique Otárola


1995 ◽  
Vol 8 (2) ◽  
pp. 177-188
Author(s):  
W. L. Chan ◽  
S. P. Yung

Sharp error estimates for optimality are established for a class of distributed parameter control problems that include elliptic, parabolic, hyperbolic systems with impulsive control and boundary control. The estimates are obtained by constructing manageable dual problems via the extremum principle.



2007 ◽  
Vol 345 (6) ◽  
pp. 359-362 ◽  
Author(s):  
Francisco Guillén-González ◽  
María Victoria Redondo-Neble


1983 ◽  
Vol 40 (161) ◽  
pp. 151-151 ◽  
Author(s):  
Goong Chen ◽  
Wendell H. Mills ◽  
Shun Hua Sun ◽  
David A. Yost


CALCOLO ◽  
2018 ◽  
Vol 55 (3) ◽  
Author(s):  
Carlo Bardaro ◽  
Paul L. Butzer ◽  
Ilaria Mantellini ◽  
Gerhard Schmeisser




Author(s):  
Doina Cioranescu ◽  
Alain Damlamian ◽  
Georges Griso
Keyword(s):  


1993 ◽  
Vol 03 (06) ◽  
pp. 711-723 ◽  
Author(s):  
RICARDO H. NOCHETTO ◽  
MAURIZIO PAOLINI ◽  
CLAUDIO VERDI

The evolution of a curvature dependent interface is approximated via a singularly perturbed parabolic double obstacle problem with small parameter ε>0. The velocity normal to the front is proportional to its mean curvature plus a forcing term. Optimal interface error estimates of order [Formula: see text] are derived for smooth evolutions, that is before singularities develop. Key ingredients are the construction of sub(super)-solutions containing several shape corrections dictated by formal asymptotics, and the use of a modified distance function.



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