Sökning: "F Hansen"

Hittade 3 avhandlingar innehållade orden F Hansen.

1. 1. Interpolation of Hilbert spaces

   Författare :Yacin Ameur; Frank Hansen; Uppsala universitet; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Mathematics; Interpolation; Hilbert space; K-functional; K-monotonicity; Calderon couple; Pick function; matrix monotone function; K_2-functional; Löwner s and Donoghue s theorems.; MATEMATIK; MATHEMATICS; MATEMATIK; Mathematics; Matematik;

   Sammanfattning : (i) We prove that intermediate Banach spaces A, B with respect to arbitrary Hilbert couples H, K are exact interpolation iff they are exact K-monotonic, i.e. the condition f0∊A and the inequality K(t,g0;K)≤K(t,f0;H), t>0 imply g0∊B and ||g0||B≤||f0||A (K is Peetre's K-functional). LÄS MER

3. 2. Ultrasheaves

   Författare :Jonas Eliasson; Viggo Stoltenberg-Hansen; Steve Awodey; Carsten Butz; Uppsala universitet; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Logic; symbolic and mathematical; 03G30; 03C20; 03H05; Matematisk logik; Mathematical logic; Matematisk logik;

   Sammanfattning : This thesis treats ultrasheaves, sheaves on the category of ultrafilters. In the classical theory of ultrapowers, you start with an ultrafilter and, given a structure, you construct the ultrapower of the structure over the ultrafilter. LÄS MER

4. 3. On Pathophysiology and Treatment of Aortic Disease

   Författare :Marek Kuzniar; Kevin Mani; Gustaf Tegler; Anders Wanhainen; Tomas Hansen; Kak-Khee Yeung; Uppsala universitet; []
   Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; Abdominal aortic aneurysm; aortic dissection; fenestrated branched stent grafts; PET; molecular imaging; inflammation; Kirurgi; Surgery;

   Sammanfattning : Pathophysiological processes underlying abdominal aortic aneurysm (AAA) formation and aortic dissections (AD) are largely unknown. Molecular imaging of the inflammatory component may improve our understanding of AAA and AD pathophysiology. LÄS MER