Results 51 to 60 of about 1,260,698 (183)

When Does Top Management Team Diversity Matter in Large Organizations?

Journal of Organizational Behavior, EarlyView.
ABSTRACT Top management teams (TMTs) drive strategic leadership, but there is little clarity on when the composition of these upper echelons most impacts organization performance. Drawing from the categorization‐elaboration model, we study an 18‐year sample of approximately 4500 organizations and over 32 000 executives and find a positive relationship ...
Frances Fabian, James M. Plečnik, Shan Wang   +2 more
wiley   +1 more source

On Some Relationships Among Pell, Pell-Lucas and Modified Pell Sequences

Sakarya Üniversitesi Fen Bilimleri Enstitüsü Dergisi, 2010
In this study, Pell, Pell-Lucas and Modified Pell numbers are investigated. Using Binet formulas for these sequences, some relations among these sequences are obtained. Also, some sum formulas are given by these properties.
Serpil Halıcı, Ahmet Daşdemir
doaj   +1 more source

Fermat and Mersenne numbers in $k$-Pell sequence

Математичні Студії, 2021
For an integer $k\geq 2$, let $(P_n^{(k)})_{n\geq 2-k}$ be the $k$-generalized Pell sequence, which starts with $0,\ldots,0,1$ ($k$ terms) and each term afterwards is defined by the recurrence $ P_n^{(k)}=2P_{n-1}^{(k)}+P_{n-2}^{(k)}+\cdots +P_{n-k}^{(k)}
B. Normenyo, S. Rihane, A. Togbe
doaj   +1 more source

Peskine Sixfolds and Debarre–Voisin Fourfolds With Associated Cubic Fourfolds

Mathematische Nachrichten, EarlyView.
ABSTRACT We develop the notion of Peskine sixfolds with associated K3 surfaces and cubic fourfolds and work out numerical conditions for when these associations occur. In discriminant 24, the first family for which there is an associated cubic fourfold, we identify the cubic explicitly.
Corey Brooke, Laure Flapan, Sarah Frei, Lisa Marquand   +3 more
wiley   +1 more source

Enhance food plant diversity conservation and use through greater coordination between genebanks and botanic gardens

PLANTS, PEOPLE, PLANET, EarlyView.
Food plants are vital to human and planetary health, but their diversity is threatened, making food security, nutrition, and environmental goals more difficult to achieve. Food plant diversity conservation, research, and education can be enhanced through collaboration between sectors, including genebanks and botanic gardens, which possess complementary
Colin K. Khoury, Sarah Gora, Hannes Dempewolf, Mauricio Diazgranados, Alex C. McAlvay, Vania Azevedo, Sam Brockington, Ángela Cano, Daniel Carver, Carly Cowell, Peter Crane, Cary Fowler, Peter Giovannini, Luigi Guarino, Robbie Hart, Geoff Hawtin, Sarada Krishnan, Charlotte Lusty, Patricia Malcolm, Nan McCarry, Abby Meyer, Allison Miller, Ray Mims, Tara Moreau, Arshiya Noorani, Susan K. Pell, Juan Lucas Restrepo, Erin C. Riordan, Stefan Schmitz, Paul Smith, Charles Spillane, Alvaro Toledo, Raakel Toppila, Maarten van Zonneveld, Emily Warschefsky, Peter Wenzl   +35 more
wiley   +1 more source

Circulant and semicirculant matrices with the Pell, Pell-Lucas and modified Pell numbers [PDF]

, 2005
Bu çalışmada, Pell, Pell - Lucas ve Modified Pell sayıları ile circulant ve semicirculant matrisler tanımlanmıştır. İlk olarak bu sayılar ile tanımlanan circulant matrislerin özdeğerleri, determinantları ve normları (spektral, Euclides ve satır ...
Alptekin, Emine Gökçen
core  

Fascinating Number Sequences from Fourth Order Difference Equation Via Quaternion Algebras

Discussiones Mathematicae - General Algebra and Applications, 2021
The balancing and Lucas-balancing numbers are solutions of second order recurrence relations. A linear combination of these numbers can also be obtained as solutions of a fourth order recurrence relation.
Patra Asim
doaj   +1 more source

A Methodological Pathway for Supporting the Transition From Theory to Practice in Action‐Oriented Research for Transformative Change

Sustainable Development, EarlyView.
ABSTRACT Over recent decades, action‐oriented research has gained prominence in co‐producing actionable knowledge to drive transformative change toward sustainability. However, further methodological developments are needed to support the transition to the application phase of such knowledge.
María D. López‐Rodríguez, Amanda Jiménez‐Aceituno, Enrica Garau, Cristina Quintas‐Soriano, Juan Miguel Requena‐Mullor, Lena Rölfer, María Mancilla García, Antonio J. Castro   +7 more
wiley   +1 more source

New Results on Negative-Indexed Pell Numbers via Matrix Methods

Cumhuriyet Science Journal
In this study, we investigate the Pell and Pell–Lucas numbers sequences and construct matrices whose elements are defined using negative indices of these sequences through Binet’s formula. Identities involving negative-indexed Pell and Pell–Lucas numbers
İbrahim Gökcan, Ümmügülsün Çağlayan, Ali Hikmet Değer   +2 more
doaj   +1 more source

Sums of Pell/Lucas Polynomials and Fibonacci/Lucas Numbers

Mathematics, 2022
Seven infinite series involving two free variables and central binomial coefficients (in denominators) are explicitly evaluated in closed form. Several identities regarding Pell/Lucas polynomials and Fibonacci/Lucas numbers are presented as consequences.
Dongwei Guo, Wenchang Chu
doaj   +1 more source