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1. Positive definiteness of fourth-order partially symmetric tensors

   In this paper, we consider the positive definiteness of fourth-order partially symmetric tensors. First, two analytically sufficient and necessary...

   Hua-ge Wang in Applied Mathematics-A Journal of Chinese Universities

   Article 18 December 2023

2. Existence and multiplicity results for nonlinear Schrödinger-Poisson equation with general potential

   Yuan Shan in Frontiers of Mathematics in China

   Article 01 December 2020

3. Theorems of the Alternative Revisited and Some Extensions of Yuan’s Lemma

   In this paper we deal with theorems of the alternative for systems of inequalities. Precisely, we give a formulation that encompasses several known...

   Ahmed Roubi in Set-Valued and Variational Analysis

   Article 18 May 2022

4. The minimal measurement number for generalized conjugate phase retrieval

   The generalized conjugate phase retrieval problem aims to reconstruct a complex signal x ∈ ℂ ⁿ from quadratic measurements x * A ₁ x ,…, x * A _m x , where A ₁ ,…...

   Wei Dan in Science China Mathematics

   Article 21 October 2020

5. Linear Complementarity Problems and Bi-Linear Games

   In this paper, we define bi-linear games as a generalization of the bimatrix games. In particular, we generalize concepts like the value and...

   Gokulraj Sengodan, Chandrashekaran Arumugasamy in Applications of Mathematics

   Article 25 June 2020

6. Some New Quaternionic Quadratics with Zeros in Terms of Second Order Quaternion Recurrences

   In this paper a comprehensive analysis of the Horadam quaternion zeros for some new types of bivariate quadratic quaternion polynomial equations is...

   Ilker Akkus, Gonca Kizilaslan in Advances in Applied Clifford Algebras

   Article 02 January 2019

7. On Generalized Heisenberg Groups: The Symmetric Case

   Kritsada Sangkhanan, Teerapong Suksumran in Results in Mathematics

   Article 13 June 2018

8. On Indecomposable Ideals Over Some Algebras

   In this paper we investigate a family of algebras endowed with a suitable non-degenerate bilinear form that can be used to define two different...

   Alessandro Ardizzoni, Fabio Stumbo in Algebras and Representation Theory

   Article 21 May 2019

9. Complementary inequalities to improved AM-GM inequality

   Hamid Reza Moradi, Mohsen Erfanian Omidvar in Acta Mathematica Sinica, English Series

   Article 15 November 2017

10. Cauchy–Riemann Operators in Octonionic Analysis

    Janne Kauhanen, Heikki Orelma in Advances in Applied Clifford Algebras

    Article 31 January 2018

11. Regular Fractional Differential Equations in the Sobolev Space

    In this paper regular fractional Sturm-Liouville boundary value problems are considered. In particular, new inner products are described in the...

    Ekin Ugurlu, Dumitru Baleanu, Kenan Tas in Fractional Calculus and Applied Analysis

    Article 22 June 2017

12. Canonical form for H-symplectic matrices

    In this paper we consider pairs of matrices (A,H), with A and H either both real or both complex, H is invertible and skew-symmetric and A is H...

    G. J. Groenewald, D. B. Janse van Rensburg, A. C. M. Ran in Operator Theory, Analysis and the State Space Approach

    Chapter 2018
    

13. Rotations on a Lightcone in Minkowski 3-Space

    Hakan Simsek, Mustafa Özdemir in Advances in Applied Clifford Algebras

    Article 16 March 2017

14. Characterization of orthomaps on the Cayley plane

    We classify maps which preserve orthogonality on the Cayley projective plane over octonions. In addition, we also classify orthogonality preserving...

    G. Dolinar, B. Kuzma, N. Stopar in Aequationes mathematicae

    Article 20 January 2018

15. Homoclinic orbits for first order Hamiltonian systems with some twist conditions

    Yuan Shan in Acta Mathematica Sinica, English Series

    Article 15 October 2015

16. Generic rank-k Perturbations of Structured Matrices

    This paper deals with the effect of generic but structured low rank perturbations on the Jordan structure and sign characteristic of matrices that...

    Leonhard Batzke, Christian Mehl, ... Leiba Rodman in Operator Theory, Function Spaces, and Applications

    Conference paper 2016
    

17. Representation Theorems for Indefinite Quadratic Forms Without Spectral Gap

    The first and second representation theorem for sign-indefinite quadratic forms are extended. We include new cases of unbounded forms associated with...

    Stephan Schmitz in Integral Equations and Operator Theory

    Article 30 July 2015

18. An Alternative Approach to Elliptical Motion

    Elliptical rotation is the motion of a point on an ellipse through some angle about a vector. The purpose of this paper is to examine the generation...

    Mustafa Özdemir in Advances in Applied Clifford Algebras

    Article 22 August 2015

19. On nilpotent Chernikov p-groups with elementary tops

    The description of nilpotent Chernikov p -groups with elementary tops is reduced to the study of tuples of skew-symmetric bilinear forms over the...

    Yuriy Drozd, Andriana Plakosh in Archiv der Mathematik

    Article 20 November 2014

20. 8-rank of the class group and isotropy index

    Qing Lu in Science China Mathematics

    Article 18 September 2014