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  1. Singular values inequalities via matrix monotone functions

    This paper uses matrix monotone functions as a key tool to obtain several relations among the singular values of certain celebrated matrix...

    Hamid Reza Moradi, Wasim Audeh, Mohammad Sababheh in Analysis and Mathematical Physics
    Article 30 July 2023
  2. S-Nodes, Factorisation of Spectral Matrix Functions and Corresponding Inequalities

    Using factorisation and Arov–Krein inequality results, we derive important inequalities (in terms of S -nodes) in interpolation problems.

    Alexander Sakhnovich in Complex Analysis and Operator Theory
    Article 01 July 2024
  3. Degenerate Elliptic Operators and Kato’s Inequality

    For all \(k,l \in \{ 1,\ldots ,d \} \) let...
    Tan Duc Do, A. F. M. ter Elst in From Complex Analysis to Operator Theory: A Panorama
    Chapter 2023
  4. On the unconstrained optimization reformulations for a class of stochastic vector variational inequality problems

    In this paper, a class of stochastic vector variational inequality (SVVI) problems are considered. By employing the idea of a D-gap function, the...

    Dan-dan Dong, Guo-ji Tang, Hui-ming Qiu in Journal of Inequalities and Applications
    Article Open access 27 July 2023
  5. A direct proof of the Sharp Gårding inequality for symbols with limited smoothness

    We give a proof of the (possibly optimal) Sharp Gårding inequality for system operators with symbol of limited smoothness directly from the original...

    Article Open access 14 November 2022
  6. From the Brunn-Minkowski Inequality to a Class of Generalized Poincaré-Type Inequalities for Torsional Rigidity

    In this paper, we establish a class of generalized Poincaré-type inequalities for torsional rigidity on the boundary of a convex body of class ...

    Niufa Fang, **rong Hu, Leina Zhao in The Journal of Geometric Analysis
    Article 27 February 2024
  7. Observability Inequality from Measurable Sets and the Shape Design Problem for Stochastic Parabolic Equations

    The primary objective of this paper is to directly establish the observability inequality for stochastic parabolic equations from measurable sets. In...

    Article 31 January 2024
  8. Relaxed Inertial Methods for Solving Split Variational Inequality Problems Without Product Space Formulation

    Many methods have been proposed in the literature for solving the split variational inequality problem. Most of these methods either require that...

    Grace Nnennaya Ogwo, Chinedu Izuchukwu, Oluwatosin Temitope Mewomo in Acta Mathematica Scientia
    Article 25 July 2022
  9. Strongly convex matrix functions

    In this article, we study strongly convex matrix functions and the strong Davis-Sherman condition to see their relations, corresponding to those of...

    Article 10 February 2024
  10. Lower Bounds for Column Matrix Approximations

    Abstract

    We show a connection between lower and upper bounds on the column matrix approximation accuracy and the bounds on the norms of the...

    Article 01 November 2023
  11. Further bounds for the spread of a matrix

    The spread of a matrix is defined as the maximum absolute value of the difference between any two eigenvalues of that matrix. In this work, we give a...

    Soumia Soltani, Abdelkader Frakis in Bollettino dell'Unione Matematica Italiana
    Article 02 June 2023
  12. Robust and continuous metric subregularity for linear inequality systems

    This paper introduces two new variational properties, robust and continuous metric subregularity, for finite linear inequality systems under data...

    J. Camacho, M. J. Cánovas, ... J. Parra in Computational Optimization and Applications
    Article Open access 16 December 2022
  13. Equivalence Theorem for Absolute Matrix Summability Methods

    Abstract

    In this paper, we obtain necessary and sufficient conditions for the equivalence of two matrix summability methods. Some known results are...

    H. N. Özgen in Mathematical Notes
    Article 01 December 2023
  14. Matrix Hölder-McCarthy inequality via matrix geometric means

    In this paper, by virtue of an expression of matrix geometric means for positive semidefinite matrices via the Moore-Penrose inverse, we show matrix...

    Ryosuke Nakayama, Yuki Seo, Reo Tojo in Advances in Operator Theory
    Article 13 February 2020
  15. On a supercritical k-Hessian inequality of Trudinger–Moser type and extremal functions

    We establish a supercritical Trudinger–Moser type inequality for the k -Hessian operator on the space of the k -admissible radially symmetric functions ...

    José Francisco de Oliveira, João Marcos do Ó, Pedro Ubilla in Annali di Matematica Pura ed Applicata (1923 -)
    Article 07 May 2024
  16. Khasminskii’s Theorem for the Kolmogorov Equation with Partially Degenerate Diffusion Matrix

    Abstract

    The stationary Kolmogorov equation with partially degenerate diffusion matrix and discontinuous drift coefficient is studied. Sufficient...

    S. V. Shaposhnikov, D. V. Shatilovich in Mathematical Notes
    Article 01 April 2024
  17. On the Probability of Generating a Primitive Matrix

    Given a k × n integer primitive matrix A (i.e., a matrix can be extended to an n × n unimodular matrix over the integers) with the maximal absolute...

    **gwei Chen, Yong Feng, ... Wenyuan Wu in Journal of Systems Science and Complexity
    Article 07 February 2024
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