Sökning: "N Langer"

Hittade 2 avhandlingar innehållade orden N Langer.

1. 1. Lp-contractivity of Semigroups Generated by Linear Partial Differential Operators

   Författare :Mikael Langer; Stig Larsson; Linköpings universitet; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES;

   Sammanfattning : This thesis is devoted to the study of contraction semigroups generated by linear partial differential operators. It is shown that linear partial differential operators of order higher than two cannot generate contraction semigroups on (LP)N for p ∈ [1, oo) unless p = 2. LÄS MER

3. 2. Deep levels in SiC

   Författare :Franziska C. Beyer; Erik Janzén; Carl Hemmingsson; Jörg Weber; Linköpings universitet; []
   Nyckelord :NATURAL SCIENCES; NATURVETENSKAP;

   Sammanfattning : Silicon carbide (SiC) has been discussed as a promising material for high power bipolar devices for almost twenty years. Advances in SiC crystal growth especially the development of chemical vapor deposition (CVD) have enabled the fabrication of high quality material. LÄS MER