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- Boo, Jörgen, 1961
(författare)
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Quadratic convexity
- 1993
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Licentiatavhandling (övrigt vetenskapligt/konstnärligt)
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- Crouzeix, Michel, et al.
(författare)
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The stability of rational approximations of analytic semigroups
- 1993
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Ingår i: BIT Numer. Math.. - 0006-3835 .- 1572-9125. ; 33:1, s. 74-84
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Tidskriftsartikel (refereegranskat)abstract
- This paper contains two new characterizations of generators of analytic semigroups of linear operators in a Banach space. These characterizations do not require use of complex numbers. One is used to give a new proof that strongly elliptic second order partial differential operators generate analytic semigroups inL p , 1
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