Uniform approximation of functions by solutions of strongly elliptic equations of second order on compact sets in [IMG align=ABSMIDDLE alt=$ R^2$]tex_im_3055_img1[/IMG]
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2006 ◽
Vol 253
(1)
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pp. 57-70
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2017 ◽
Vol 298
(1)
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pp. 35-50
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2018 ◽
Vol 301
(1)
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pp. 1-10
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2012 ◽
Vol 364
(5)
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pp. 2443-2460
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1989 ◽
pp. 939-957
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