Results 41 to 50 of about 1,035,661 (292)

Nonnegative Combined Matrices

open access: yesJournal of Applied Mathematics, 2014
The combined matrix of a nonsingular real matrix A is the Hadamard (entrywise) product A∘A-1T. It is well known that row (column) sums of combined matrices are constant and equal to one. Recently, some results on combined matrices of different classes of
Rafael Bru   +3 more
doaj   +1 more source

Ligand‐dependent transcriptional heterogeneity in cell cycle gene expression delays G1/S entry

open access: yesFEBS Letters, EarlyView.
EGF and HRG induce distinct G1/S progression programs in ErbB2‐amplified BT474 breast cancer cells. Despite activating the potent ErbB2–ErbB3 heterodimer, HRG does not accelerate cell‐cycle entry. Instead, EGF promotes earlier restriction‐point passage via ERK–FOS signaling, whereas HRG activates the AKT–MYC axis, driving transcriptional heterogeneity ...
Ririn Rahmala Febri   +5 more
wiley   +1 more source

Finite-Time Admissibility and Controller Design for T-S Fuzzy Stochastic Singular Systems with Distinct Differential Term Matrices

open access: yesComplexity, 2021
The finite-time admissibility analysis and controller design issues for extended T-S fuzzy stochastic singular systems (FSSSs) with distinct differential term matrices and Brownian parameter perturbations are discussed.
Liang Qiao, Zhaomin Lv
doaj   +1 more source

Single‐cell DNA methylation profiling: Technologies, computation, and applications in precision oncology

open access: yesMolecular Oncology, EarlyView.
Single‐cell DNA methylation (scDNAme) profiling maps epimutational clonal evolution, revealing mechanisms of malignancy and therapeutic resistance across diverse cancer types. By providing a high‐resolution landscape of intratumoral heterogeneity, these technologies empower precise patient stratification, guide the development of enhanced ...
Ik Soo Kim
wiley   +1 more source

Sztochasztikus Rendszerek és Pénzügyi Piacok Modellezése = Stochastic Systems and Modelling of Financial Markets [PDF]

open access: yes, 2007
A kutatások célja a sztochasztikus rendszerek legkorszerűbb módszereinek az alkalmazása a pénzügyi piacok modellezésében és maguknak a módszereknek a továbbfejlesztése.
Véber, Miklós   +11 more
core   +1 more source

Observer‐Based Adaptive Event‐Triggered Tracking Control for Fuzzy TS Systems With Premise Mismatch

open access: yesInternational Journal of Adaptive Control and Signal Processing, EarlyView.
This paper presents an adaptive logistic event‐triggered observer‐based tracking controller for Takagi‐Sugeno fuzzy systems under constrained inputs and network delays. Leveraging a hybrid LMI and Secretary Bird Optimization approach, this strategy significantly minimizes communication overhead and computational burden while ensuring optimal reference ...
Oussama Djadane   +3 more
wiley   +1 more source

Subadditivity of Entropy for Stochastic Matrices

open access: yesOpen Systems & Information Dynamics, 2002
The entropy of an irreducible stochastic matrix measures its mixing properties. We show that this quantity is subadditive and strongly subadditive.
openaire   +3 more sources

Double-null Operators and the Investigation of Birkhoff\'s Theorem on Discrete lp Spaces

open access: yesپژوهش‌های ریاضی, 2020
Doubly stochastic matrices play a fundamental role in the theory of majorization. Birkhoff's theorem explains the relation between $ntimes n$ doubly stochastic matrices and permutations.
Ali Bayati Eshkaftaki
doaj  

Corrigendum to “Spectra universally realizable by doubly stochastic matrices”

open access: yesSpecial Matrices, 2023
We correct an error in the statement and the proof of Theorem 2.1 and Corollary 2.1 in our previous study [Spec. Matrices 6 (2018), 301–309], Section 2: On nonnegative matrices similar to positive matrices.
Collao Macarena   +2 more
doaj   +1 more source

An inequality for doubly stochastic matrices

open access: yes, 1976
Interrelated inequalities involving doubly stochastic matrices are presented. For example, if B is an n by n doubly stochastic matrix, x any nonnegative vector and y = Bx, then x1x2xn = y1y2yn.
Johnson, Charles R.; Kellogg, R.B.
core   +1 more source

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