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APPML
2008
73views more  APPML 2008»
15 years 6 months ago
Free vibrations for some Koiter shells of revolution
The asymptotic behaviour of the smallest eigenvalue in linear Koiter shell problems is studied, as the thickness parameter tends to zero. In particular, three types of shells of r...
Edoardo Artioli, Lourenço Beirão da ...
AUTOMATICA
2007
70views more  AUTOMATICA 2007»
15 years 6 months ago
On detectability of stochastic systems
We discuss notions of detectability for stochastic linear control systems of Itˆo type. A natural concept of detectability requires a non-zero output, if the state process is uns...
Tobias Damm
EJC
2010
15 years 6 months ago
Connectivity of chamber graphs of buildings and related complexes
Let be a finite building (or, more generally, a thick spherical and locally finite building). The chamber graph G(), whose edges are the pairs of adjacent chambers in , is known t...
Anders Björner, Kathrin Vorwerk
EJC
2006
15 years 6 months ago
Deza digraphs
As a generalization of Deza graphs, we introduce Deza digraphs and describe the basic theory of these graphs. We also prove the necessary and sufficient conditions when a weakly d...
Kaishun Wang, Yan-Quan Feng
195
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JCT
2008
120views more  JCT 2008»
15 years 6 months ago
Approximate min-max theorems for Steiner rooted-orientations of graphs and hypergraphs
Given an undirected hypergraph and a subset of vertices S V with a specified root vertex r S, the STEINER ROOTED-ORIENTATION problem is to find an orientation of all the hypered...
Tamás Király, Lap Chi Lau