The spectral function of an elliptic operator
The spectral function of an elliptic operator
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DOI:
10.1007/bf02391913
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发表时间:
1968-12
期刊:
影响因子:
3.7
通讯作者:
L. Hörmander
中科院分区:
文献类型:
--
作者:
L. Hörmander
In this paper we shall obtain the best possible estimates for the remainder term in the asymptotic formula for the spectral function of an arbitrary elliptic (pseudo-)differential operator. This is achieved by means of a complete description of the singularities of the Fourier transform of the spectral function for low frequencies.