The logarithmic singularity should be easier to cope with . talk ) 23 : 52, 5 March 2011 ( UTC)
2.
The theory of Bost is based on the use of Green functions which, up to logarithmic singularities, belong to the Sobolev space L " 2 " " 1 ".
3.
Integrating the Taylor series for e ^ {-t } / t, and extracting the logarithmic singularity, we can derive the following series representation for E _ 1 ( x ) for real x:
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