Results 51 to 60 of about 1,101,519 (253)

Skew Circulant Type Matrices Involving the Sum of Fibonacci and Lucas Numbers

open access: yesAbstract and Applied Analysis, 2015
Skew circulant and circulant matrices have been an ideal research area and hot issue for solving various differential equations. In this paper, the skew circulant type matrices with the sum of Fibonacci and Lucas numbers are discussed.
Zhaolin Jiang, Yunlan Wei
doaj   +1 more source

An Upper Bound of Fully Entangled Fraction of Mixed States

open access: yes, 2016
We study the fully entangled fraction of a quantum state. An upper bound is obtained for arbitrary bipartite system.
Huang, Xiaofen   +2 more
core   +1 more source

A New Method for the Bisymmetric Minimum Norm Solution of the Consistent Matrix Equations A1XB1=C1, A2XB2=C2

open access: yesJournal of Applied Mathematics, 2013
We propose a new iterative method to find the bisymmetric minimum norm solution of a pair of consistent matrix equations A1XB1=C1, A2XB2=C2. The algorithm can obtain the bisymmetric solution with minimum Frobenius norm in finite iteration steps in the ...
Aijing Liu   +2 more
doaj   +1 more source

Approximating the Real Structured Stability Radius with Frobenius-Norm Bounded Perturbations [PDF]

open access: yesSIAM Journal on Matrix Analysis and Applications, 2017
We propose a fast method to approximate the real stability radius of a linear dynamical system with output feedback, where the perturbations are restricted to be real valued and bounded with respect to the Frobenius norm.
N. Guglielmi   +3 more
semanticscholar   +1 more source

On subspace distances determined by the Frobenius norm

open access: yesLinear Algebra and its Applications, 2014
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Baksalary, Oskar Maria, Trenkler, Götz
openaire   +2 more sources

On Skew Circulant Type Matrices Involving Any Continuous Fibonacci Numbers

open access: yesAbstract and Applied Analysis, 2014
Circulant and skew circulant matrices have become an important tool in networks engineering. In this paper, we consider skew circulant type matrices with any continuous Fibonacci numbers.
Zhaolin Jiang, Jinjiang Yao, Fuliang Lu
doaj   +1 more source

Lower bounds for quantum-inspired classical algorithms via communication complexity [PDF]

open access: yesQuantum
Quantum-inspired classical algorithms provide us with a new way to understand the computational power of quantum computers for practically-relevant problems, especially in machine learning.
Nikhil S. Mande, Changpeng Shao
doaj   +1 more source

Fast Parallel Randomized Algorithm for Nonnegative Matrix Factorization with KL Divergence for Large Sparse Datasets [PDF]

open access: yes, 2016
Nonnegative Matrix Factorization (NMF) with Kullback-Leibler Divergence (NMF-KL) is one of the most significant NMF problems and equivalent to Probabilistic Latent Semantic Indexing (PLSI), which has been successfully applied in many applications.
Ho, Tu Bao, Nguyen, Duy Khuong
core   +2 more sources

A Deep Learning Framework for Forecasting Medium‐Term Covariance in Multiasset Portfolios

open access: yesJournal of Forecasting, Volume 45, Issue 4, Page 1797-1828, July 2026.
ABSTRACT Forecasting the covariance matrix of asset returns is central to portfolio construction, risk management, and asset pricing. However, most existing models struggle at medium‐term horizons, several weeks to months, where shifting market regimes and slower dynamics prevail.
Pedro Reis, Ana Paula Serra, João Gama
wiley   +1 more source

Deep Fuzzy Clustering Network With Matrix Norm Regularization

open access: yesIEEE Access
Recently, deep clustering networks, which able to learn latent embedding and clustering assignment simultaneously, attract lots of attention. Among the deep clustering networks, the suitable regularization term is not only beneficial to training of ...
Feiyu Chen, Yan Li, Wei Wang
doaj   +1 more source

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