Results 1 to 10 of about 221 (121)
Permutative universal realizability [PDF]
Special Matrices, 2021 A list of complex numbers Λ is said to be realizable, if it is the spectrum of a nonnegative matrix. In this paper we provide a new sufficient condition for a given list Λ to be universally realizable (UR), that is, realizable for each possible Jordan ...
Soto Ricardo L. +2 more
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On new universal realizability criteria
Special Matrices, 2022 A list Λ={λ1,λ2,…,λn}\Lambda =\left\{{\lambda }_{1},{\lambda }_{2},\ldots ,{\lambda }_{n}\right\} of complex numbers is said to be realizable if it is the spectrum of an entrywise nonnegative matrix and is said to be universally realizable (UR), if it is
Arrieta Luis E., Soto Ricardo L.
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On universal realizability of spectra [PDF]
Linear Algebra and Its Applications, 2019 22 pages, 2 ...
Ana I Julio, C Marijuan, M Pisonero
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Spectra inhabiting the left half-plane that are universally realizable
Special Matrices, 2021 Let Λ = {λ1, λ2, . . ., λn} be a list of complex numbers. Λ is said to be realizable if it is the spectrum of an entrywise nonnegative matrix. Λ is universally realizable if it is realizable for each possible Jordan canonical form allowed by Λ. Minc ([21]
Soto Ricardo L.
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Quantitative Languages Defined by Functional Automata [PDF]
Logical Methods in Computer Science, 2015 A weighted automaton is functional if any two accepting runs on the same finite word have the same value. In this paper, we investigate functional weighted automata for four different measures: the sum, the mean, the discounted sum of weights along edges
Emmanuel Filiot +2 more
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Centrosymmetric universal realizability
The Electronic Journal of Linear Algebra, 2021 A list $\Lambda =\{\lambda_{1},\ldots,\lambda_{n}\}$ of complex numbers is said to be realizable, if it is the spectrum of an entrywise nonnegative matrix $A$. In this case, $A$ is said to be a realizing matrix. $\Lambda$ is said to be universally realizable, if it is realizable for each possible Jordan canonical form (JCF) allowed by $\Lambda$.
Ana Julio +2 more
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Procedures for realizing an approximate universal-not gate [PDF]
Physical Review A, 2012 We consider procedures to realize an approximate universal NOT gate in terms of average fidelity and fidelity deviation. The average fidelity indicates the optimality of operation on average, while the fidelity deviation does the universality of operation.
Bang, Jeongho +3 more
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Realizing Universal Dependencies Structures [PDF]
Proceedings of the 2nd Workshop on Multilingual Surface Realisation (MSR 2019), 2019 We first describe a surface realizer forUniversal Dependencies (UD) structures. The system uses a symbolic approach to transform the dependency tree into a tree of constituents that is transformed into an English sentence by an existing realizer. This approach was then adapted for the two shared tasks of SR’19.
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Realization of the optimal universal quantum entangler [PDF]
Physical Review A, 2004 We present the first experimental demonstration of the ''optimal'' and ''universal'' quantum entangling process involving qubits encoded in the polarization of single photons. The structure of the ''quantum entangling machine'' consists of the quantum injected optical parametric amplifier by which the contextual realization of the 1->2 universal ...
SCIARRINO, Fabio +2 more
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Toeplitz nonnegative realization of spectra via companion matrices
Special Matrices, 2019 The nonnegative inverse eigenvalue problem (NIEP) is the problem of finding conditions for the existence of an n × n entrywise nonnegative matrix A with prescribed spectrum Λ = {λ1, . . ., λn}.
Collao Macarena +2 more
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