Understanding the effect of educational attainment on the risk of retinal detachment: a Mendelian randomization mediation analysis. [PDF]
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When air-raid sirens howl the rate of visits of pregnant women to the obstetrical emergency room decreases: results of a 4-months wartime follow up in a tertiary medical center. [PDF]
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Neural sequences underlying directed turning in Caenorhabditis elegans. [PDF]
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On the Validity of the Direct Sum Conjecture
SIAM Journal on Computing, 1986The direct sum conjecture states that the multiplicative complexity of disjoint sets of bilinear computations is the sum of their separate multiplicative complexities. This conjecture is known to hold for only a few specialized cases. In this paper, we establish its validity for large classes of computations.
Jean Takche
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Sum and direct sum of frame sequences
Linear and Multilinear Algebra, 2013Casazza, Han and Larson characterized various properties of the direct sum of two frame sequences. We add characterizations of other properties and study the relationship between the direct sum and the sum of frame sequences. In particular, we find a necessary and sufficient condition for the sum of two strongly disjoint (orthogonal) frame sequences ...
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