Results 41 to 50 of about 2,470 (304)
Distributed Constructions of Dual-Failure Fault-Tolerant Distance Preservers [PDF]
, 2020 Fault tolerant distance preservers (spanners) are sparse subgraphs that preserve (approximate) distances between given pairs of vertices under edge or vertex failures.
Parter, Merav
core +1 more source
On Partially Trace Distance Preserving Maps and Reversible Quantum Channels
Journal of Applied Mathematics, 2013 We give a characterization of trace-preserving and positive linear maps preserving trace distance partially, that is, preservers of trace distance of quantum states or pure states rather than all matrices.
Long Jian, Kan He, Qing Yuan, Fei Wang
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Better Distance Preservers and Additive Spanners
, 2022 We study two popular ways to sketch the shortest path distances of an input graph. The first is distance preservers , which are sparse subgraphs that agree with the distances of the original graph on a given set of
Williams, Virginia Vassilevska +1 more
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Approximate Preservers on Banach Algebras and C*-Algebras
Abstract and Applied Analysis, 2013 The aim of the present paper is to give approximate versions of Hua’s theorem and other related results for Banach algebras and C*-algebras. We also study linear maps approximately preserving the conorm between unital C*-algebras.
M. Burgos +2 more
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Ant brood function as life preservers during floods.
PLoS ONE, 2014 Social organisms can surmount many ecological challenges by working collectively. An impressive example of such collective behavior occurs when ants physically link together into floating 'rafts' to escape from flooded habitat.
Jessica Purcell +4 more
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Pediatric Blood &Cancer, EarlyView.ABSTRACT Background Embryonal tumors comprise the majority of malignant central nervous system (CNS) neoplasms diagnosed in children under 3 years of age. Compared with their counterparts in older children, these tumors exhibit distinct molecular biology and a more aggressive clinical phenotype, while their management is complicated by the heightened ...
Sudarshawn Damodharan +3 more
wiley +1 more source
Linear preservers of row-dense matrices [PDF]
, 2016 summary:Let $\mathbf {M}_{m,n}$ be the set of all $m\times n$ real matrices. A matrix $A\in \mathbf {M}_{m,n}$ is said to be row-dense if there are no zeros between two nonzero entries for every row of this matrix.
Hall, Frank J. +2 more
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Itinéraires, 2011 This article explores the collective (cultural and linguistic) dimension of memory as realized in proverbs. These simple forms are called “frozen” because they are supposed to be the preservers of common sense in terms of intersubjectivity and mutual ...
Guy Achard-Bayle, Bertille Schneider
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