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» A generalization of the Lin-Zhao theorem
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TIP
2008
98views more  TIP 2008»
13 years 9 months ago
On the Construction of Invertible Filter Banks on the 2-Sphere
The theories of signal sampling, filter banks, wavelets and "overcomplete wavelets" are well-established for the Euclidean spaces and are widely used in the processing a...
B. T. Thomas Yeo, Wanmei Ou, Polina Golland
ACTA
2000
104views more  ACTA 2000»
13 years 9 months ago
Some results on the Collatz problem
The paper refers to the Collatz's conjecture. In the first part, we present some equivalent forms of this conjecture and a slight generalization of a former result from [1]. T...
Stefan Andrei, Manfred Kudlek, Radu Stefan Nicules...
ICALP
2009
Springer
14 years 9 months ago
Approximation Algorithms via Structural Results for Apex-Minor-Free Graphs
We develop new structural results for apex-minor-free graphs and show their power by developing two new approximation algorithms. The first is an additive approximation for colorin...
Erik D. Demaine, MohammadTaghi Hajiaghayi, Ken-ich...
CORR
2010
Springer
58views Education» more  CORR 2010»
13 years 7 months ago
Realizable Paths and the NL vs L Problem
A celebrated theorem of Savitch [Sav70] states that NSPACE(S) ⊆ DSPACE(S2 ). In particular, Savitch gave a deterministic algorithm to solve ST-CONNECTIVITY (an NL-complete probl...
Shiva Kintali
ATAL
2005
Springer
14 years 2 months ago
Towards a formal framework for the search of a consensus between autonomous agents
This paper aims at proposing a general formal framework for dialogue between autonomous agents which are looking for a common agreement about a collective choice. The proposed set...
Leila Amgoud, Sihem Belabbes, Henri Prade