Results 81 to 90 of about 724,539 (169)

ON THE ZEROS OF THE DERIVATIVES OF FIBONACCI AND LUCAS POLYNOMIALS

open access: yesJournal of New Theory, 2015
The purpose of this article is to derive some functions which map the zeros of Fibonacci polynomials to the zeros of Lucas polynomials. Also we find some equations which are satisfied by F 0 n (x) and so L 00 n (x).
Nihal Yılmaz Özgür   +1 more
doaj  

Tridiagonal matrices representations of generalized bivariate complex polynomials

open access: yesJournal of Innovative Applied Mathematics and Computational Sciences
This paper introduces a closed-form expression for generalized bivariate complex polynomials using a tridiagonal determinant in symbolic form. Subsequences with even and odd indices are also represented as tridiagonal determinants.
K. L. Verma
doaj   +1 more source

Unhappy Regions and Cities? Urban Agglomeration and Individual Happiness in Spain

open access: yesJournal of Regional Science, EarlyView.
ABSTRACT This paper examines how individual subjective well‐being varies across space in Spain, with a particular focus on the roles of city size and long‐term population growth. Using individual‐level data from multiple waves of the Spanish Centre for Sociological Research surveys between 2013 and 2025, adjusted measures of area‐level happiness are ...
Rafael González‐Val
wiley   +1 more source

Bivariate fibonacci like p–polynomials

open access: yes, 2011
In this article, we study the bivariate Fibonacci and Lucas p-polynomials (p >= 0 is integer) from which, specifying x, y and p, bivariate Fibonacci and Lucas polynomials, bivariate Pell and Pell-Lucas polynomials, Jacobsthal and Jacobsthal-Lucas ...
Stakhov, Alexey   +5 more
core   +1 more source

A Combinatorial Proof of a Result on Generalized Lucas Polynomials

open access: yesDemonstratio Mathematica, 2016
We give a combinatorial proof of an elementary property of generalized Lucas polynomials, inspired by [1]. These polynomials in s and t are defined by the recurrence relation 〈n〉 = s〈n-1〉+t〈n-2〉 for n ≥ 2.
Laugier Alexandre, Saikia Manjil P.
doaj   +1 more source

Elevated CO2 drives nonlinear trait responses and reshapes growth‐virulence trade‐offs in a plant pathogen

open access: yesNew Phytologist, EarlyView.
Temporal variation in carbon dioxide concentration within the crop canopy and in the atmosphere. Summary Atmospheric CO2 is rising at unprecedented rates. While its physiological effects on plants are well‐documented, the direct evolutionary impact on plant pathogens remains unknown. We investigated how CO2 interacts with other abiotic factors to shape
Li‐Na Yang   +5 more
wiley   +1 more source

On some properties of generalized Fibonacci and Lucas polynomials

open access: yes, 2017
In this paper we investigate some properties of generalized Fibonacci and Lucas polynomials. We give some new identities using matrices and Laplace expansion for the generalized Fibonacci and Lucas polynomials.
Sümeyra Uçar
core   +1 more source

What Candidates Benefit From Corruption? Opportunities for Corruption and the Prevalence of Candidates With Business Ties

open access: yesRegulation &Governance, EarlyView.
ABSTRACT Which candidates benefit from corruption and favoritism in public procurement? While existing studies show that politically connected firms profit from corruption risks in public procurement, we know less about whether these risks also increase the prevalence of political candidates with ties to business.
Saverio Di Giorno   +2 more
wiley   +1 more source

Determinantal formulas and recurrent relations for bi-periodic Fibonacci and Lucas polynomials

open access: yes, 2023
In the paper, the authors find closed formulas and recurrent relations for bi-periodic Fibonacci polynomials and for bi-periodic Lucas polynomials in terms of the Hessenberg determinants.
Emrah Polatlı   +2 more
core   +1 more source

Development of Elective Flexibility and Related Cognitive Functions Across Three Cultures

open access: yesDevelopmental Science, Volume 30, Issue 1, January 2027.
ABSTRACT Elective flexibility, the ability to switch between working strategies adaptively, is critical for decision‐making in complex environments. Here we experimentally assessed elective flexibility alongside three related cognitive measures short‐term memory, inhibition, and responsive flexibility–in 325 children and adults (ages 4–81‐years) from ...
Sarah Pope‐Caldwell   +6 more
wiley   +1 more source

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