Results 31 to 40 of about 230,048 (301)
MAPPING FROM SPACE – ONTOLOGY BASED MAP PRODUCTION USING SATELLITE IMAGERIES [PDF]
The International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences, 2013 Determination of the maximum ability for feature extraction from satellite imageries based on ontology procedure using cartographic feature determination is the main objective of this research.
A. Asefpour Vakilian, M. Momeni
doaj +3 more sources
Completely positive module maps and completely positive extreme maps [PDF]
Proceedings of the American Mathematical Society, 1996 Let A , B A,B
openaire +2 more sources
Infinite dimensional generalizations of Choi’s Theorem
Special Matrices, 2019 In this paper we give a simple sequence of necessary and sufficient finite dimensional conditions for a positive map between certain subspaces of bounded linear operators on separable Hilbert spaces to be completely positive. These criterions are natural
Friedland Shmuel
doaj +1 more source
A completely positive map associated with a positive map [PDF]
Pacific Journal of Mathematics, 2011 We show that each positive map from B(K) to B(H) with K and H finite dimensional Hilbert spaces is a scalar multiple of a map of the form $Tr - ψ$ with $ψ$ completely positive. This is used to give necessary and sufficient conditions for maps to be C-positive for a large class of mapping cones; in particular we apply the results to k-positive maps.
openaire +2 more sources
Bloch equations and completely positive maps [PDF]
Journal of Modern Optics, 2004 The phenomenological dissipation of the Bloch equations is reexamined in the context of completely positive maps. Such maps occur if the dissipation arises from a reduction of a unitary evolution of a system coupled to a reservoir. In such a case the reduced dynamics for the system alone will always yield completely positive maps of the density ...
Daffer, Sonja +2 more
openaire +2 more sources
Completely positive quantum trajectories with applications to quantum state smoothing
, 2020 To compare quantum estimation theory schemes we must acknowledge that, in some cases, the quantitative difference between them might be small and hence sensitive to numerical errors.
Guevara, I, Wiseman, HM
core +1 more source
Veterinary Sciences, 2020 Paratuberculosis (PTB) is an enteric granulomatous disease caused by Mycobacterium avium subsp. paratuberculosis (MAP) that mainly affects ruminants. Current vaccines have shown to be cost−effective control reagents, although they are restricted ...
Rakel Arrazuria +8 more
doaj +1 more source
The Curvature and Index of Completely Positive Maps [PDF]
Proceedings of the London Mathematical Society, 2003 We study conjugacy invariants for completely positive maps that are inspired by the concept of curvature introduced for commuting d-tuples of contractions by ...
Muhly, Paul S., Solel, Baruch
openaire +3 more sources
Distinguishing between statistical and systematic errors in quantum process tomography
New Journal of Physics, 2019 It is generally assumed that every process in quantum physics can be described mathematically by a completely positive map. However, experimentally reconstructed processes are not necessarily completely positive due to statistical or systematic errors ...
Sabine Wölk +3 more
doaj +1 more source
Quantized Markov Chain Couplings that Prepare Qsamples [PDF]
QuantumWe present a novel approach to quantizing Markov chains. The approach is based on the Markov chain coupling method, which is frequently used to prove fast mixing. Given a particular coupling, e.g., a grand coupling, we construct a completely positive and
Kristan Temme, Pawel Wocjan
doaj +1 more source