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ACTA
2000
104views more  ACTA 2000»
15 years 2 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...
CI
2002
102views more  CI 2002»
15 years 2 months ago
Topological Spatio-Temporal Reasoning and Representation
We present here a theory of motion from a topological point of view, in a symbolic perspective. Taking space-time histories of objects as primitive entities, we introduce temporal...
Philippe Muller
TIT
2002
75views more  TIT 2002»
15 years 2 months ago
Iterative multiuser joint decoding: Unified framework and asymptotic analysis
We present a framework for iterative multiuser joint decoding of code-division multiple-access (CDMA) signals, based on the factor-graph representation and on the sum-product algor...
Joseph Boutros, Giuseppe Caire
JCT
2010
63views more  JCT 2010»
15 years 1 months ago
Cyclic sieving, promotion, and representation theory
We prove a collection of conjectures of D. White [37], as well as some related conjectures of Abuzzahab-Korson-Li-Meyer [1] and of Reiner and White [21], [37], regarding the cyclic...
Brendon Rhoades
SCL
2010
141views more  SCL 2010»
15 years 1 months ago
On the computation of structured singular values and pseudospectra
Structured singular values and pseudospectra play an important role in assessing the properties of a linear system under structured perturbations. This paper discusses computation...
Michael Karow, Effrosini Kokiopoulou, Daniel Kress...