Results 31 to 40 of about 76 (75)

Square Roots of Real 3 × 3 Matrices vs. Quartic Polynomials with Real Zeros

open access: yesAnalele Stiintifice ale Universitatii Ovidius Constanta: Seria Matematica, 2017
There is an interesting analogy between the description of the real square roots of 3×3 matrices and the zeros of the (depressed) real quartic polynomials.
Anghel Nicolae
doaj   +1 more source

On (k1A1, k2A2, k3A3)-Edge Colourings in Graphs and Generalized Jacobsthal Numbers

open access: yesAnnales Mathematicae Silesianae
In this paper we introduce a new kind of generalized Jacobsthal numbers in a distance sense. We give the identities and matrix representations for them and their connections with the Fibonacci and the Pell numbers. We also describe the interpretations of
Piejko Krzysztof, Trojnar-Spelina Lucyna
doaj   +1 more source

Determinant Identities and the Geometry of Lines and Circles

open access: yesAnalele Stiintifice ale Universitatii Ovidius Constanta: Seria Matematica, 2014
The focus of this note is the nontrivial determinant identities which typically underlie the complex analytic proofs of all the results in the plane geometry of lines and circles.
Anghel Nicolae
doaj   +1 more source

The number of rational points of some classes of algebraic varieties over finite fields

open access: yesOpen Mathematics
Let Fq{{\mathbb{F}}}_{q} be the finite field of characteristic pp and Fq*=Fq\{0}{{\mathbb{F}}}_{q}^{* }\left={{\mathbb{F}}}_{q}\backslash \left\{0\right\}.
Zhu Guangyan   +3 more
doaj   +1 more source

Determinants of Toeplitz–Hessenberg Matrices with Generalized Leonardo Number Entries

open access: yesAnnales Mathematicae Silesianae
Let un = un(k) denote the generalized Leonardo number defined recursively by un = un−1 + un−2 + k for n ≥ 2, where u0 = u1 = 1. Terms of the sequence un(1) are referred to simply as Leonardo numbers.
Goy Taras, Shattuck Mark
doaj   +1 more source

On Matrices with Bidimensional Fibonacci Numbers

open access: yesAnnales Mathematicae Silesianae
In this paper, the bidimensional extensions of the Fibonacci numbers are explored, along with a detailed examination of their properties, characteristics, and some identities.
Costa Eudes Antonio   +1 more
doaj   +1 more source

Sequences in overpartitions. [PDF]

open access: yesRamanujan J, 2023
Andrews GE, Uncu AK.
europepmc   +1 more source

Sets of range uniqueness for multivariate polynomials and linear functions with rank k. [PDF]

open access: yesLinear Multilinear Algebra, 2022
Halbeisen L   +3 more
europepmc   +1 more source

The development of surgical risk score and evaluation of necrotizing soft tissue infection in 161 Naja atra envenomed patients. [PDF]

open access: yesPLoS Negl Trop Dis, 2022
Lai CS   +12 more
europepmc   +1 more source

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