The Decomposition Theorem
The Decomposition Theorem
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DOI:
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发表时间:
1992
期刊:
影响因子:
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通讯作者:
W. Ramey
中科院分区:
文献类型:
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作者:
S. Axler;P. Bourdon;W. Ramey
If K ⊂ Ω is compact and u is harmonic on Ω K, then u might be badly behaved near both ∂K and ∂Ω; see, for example, Theorem 11.18. In this chapter we will see that u is the sum of two harmonic functions, one extending harmonically across ∂K, the other extending harmonically across ∂Ω. More precisely, u has a decomposition of the form
$$u =
u + w$$
on Ω K, where v is harmonic on Ω and w is harmonic on R n K. Furthermore, there is a canonical choice for w that makes this decomposition unique.