Results 21 to 30 of about 1,734,778 (295)

Fractional minimal rank

open access: yesLinear and Multilinear Algebra, 2018
18 pages, no ...
Grossmann, Ben W., Woerdeman, Hugo J.
openaire   +2 more sources

Subspace expanders and matrix rank minimization [PDF]

open access: yes2011 IEEE International Symposium on Information Theory Proceedings, 2011
Matrix rank minimization (RM) problems recently gained extensive attention due to numerous applications in machine learning, system identification and graphical models. In RM problem, one aims to find the matrix with the lowest rank that satisfies a set of linear constraints.
Oymak, Samet   +2 more
openaire   +4 more sources

Persistent Tensors and Multiqudit Entanglement Transformation [PDF]

open access: yesQuantum
We construct a lower bound of the tensor rank for a new class of tensors, which we call $\textit{persistent tensors}$. We present three specific families of persistent tensors, of which the lower bound is tight.
Masoud Gharahi, Vladimir Lysikov
doaj   +1 more source

Stochastic Model for Phonemes Uncovers an Author-Dependency of Their Usage. [PDF]

open access: yesPLoS ONE, 2016
We study rank-frequency relations for phonemes, the minimal units that still relate to linguistic meaning. We show that these relations can be described by the Dirichlet distribution, a direct analogue of the ideal-gas model in statistical mechanics ...
Weibing Deng, Armen E Allahverdyan
doaj   +1 more source

On Extremal Ranks and Least Squares Solutions Subject to a Rank Restriction

open access: yesAbstract and Applied Analysis, 2014
We discuss the feasible interval of the parameter k and a general expression of matrix X which satisfies the rank equation r(A-BXC)=k. With these results, we study two problems under the rank constraint r(A-BXC)=k.
Hongxing Wang, Yeguo Sun
doaj   +1 more source

Groups with many Subgroups which are Commensurable with some Normal Subgroup [PDF]

open access: yesAdvances in Group Theory and Applications, 2019
A subgroup H of a group G is called commensurable with a normal subgroup (cn) if there is N C G such that |HN/(H ∩ N)| is finite. We characterize generalized radical groups G which have one of the following finiteness conditions: (A) the minimal ...
Ulderico Dardano, Silvana Rinauro
doaj   +1 more source

A PRESENTATION FOR A SUBMONOID OF THE SYMMETRIC INVERSE MONOID

open access: yesUral Mathematical Journal, 2023
In the present paper,  we study a submonoid of the symmetric inverse semigroup \(I_n\). Specifically, we  consider the monoid of all order-, fence-, and parity-preserving transformations of \(I_n\).
Apatsara Sareeto, Jörg Koppitz
doaj   +1 more source

Secretary Ranking with Minimal Inversions

open access: yesCoRR, 2018
We study a twist on the classic secretary problem, which we term the secretary ranking problem: elements from an ordered set arrive in random order and instead of picking the maximum element, the algorithm is asked to assign a rank, or position, to each of the elements. The rank assigned is irrevocable and is given knowing only the pairwise comparisons
Sepehr Assadi   +2 more
openaire   +4 more sources

Optimization Problems of Hermitian Quadratic Matrix-Valued Functions and Applications

open access: yesAxioms
In this paper, we investigate optimization problems for a Hermitian quadratic matrix-valued function involving two variable matrices. We derive algebraic formulas for the maximal and minimal ranks and partial inertias of this function based on a ...
Sihem Guerarra
doaj   +1 more source

Disability Adjusted Life Years and minimal disease: application of a preference-based relevance criterion to rank enteric pathogens

open access: yesPopulation Health Metrics, 2008
Background Burden of disease estimates, which combine mortality and morbidity into a single measure, are used increasingly for priority setting in disease control, prevention and surveillance.
Haagsma Juanita A   +3 more
doaj   +1 more source

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