Results 111 to 120 of about 2,865 (225)
On the Norms of Toeplitz Matrices with the Pell, Pell-Lucas and Modified Pell Numbers
Journal of Engineering Technology and Applied Sciences, 2016 This paper deals with the usual Pell, Pell-Lucas and Modified Pell numbers and Toeplitz matrices. First, the Toeplitz matrices whose entries are the usual Pell, Pell-Lucas and Modified Pell numbers are constructed, and then the Frobenius, row and column norms of such matrices are computed.
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Silver‐Alloyed Wide‐Bandgap (Ag,Cu)(In,Ga)S2 Thin‐Film Solar Cells With 15.5% Efficiency
Progress in Photovoltaics: Research and Applications, Volume 34, Issue 7, Page 942-956, July 2026.This study reports improvements in compositional homogeneity, microstructure, enhanced radiative recombination, and extended carrier lifetime of CIGS absorber via Ag incorporation. The optimal Ag‐alloyed CIGS solar cells achieve 15.5% PCE and 948 mV VOC, competing with the VOC of the Ag‐free reference sample from the same batch.
Yucheng Hu +16 more
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Rethinking social capital in wildfire resilience: the case of central Portugal
Disasters, Volume 50, Issue 3, July 2026.Abstract This article explores the role of social capital in wildfire resilience and is based on case study research in central Portugal. Given the recent revival of the concept across disciplines to explain how communities can cope with hazards, we critically analyse social capital through a social network analysis perspective, introducing an ...
Cíntia Fachada, José Manuel Mendes
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Publications de l'Institut Mathematique, 2019 We show that the only Pell numbers which are factoriangular are 2,5 and 12.
Luca, Florian +2 more
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Climate Resilience and Sustainability, Volume 5, Issue 1, June 2026.ABSTRACT This paper examines the concept of resilience as understood and operationalised by various humanitarian and climate resilience actors in Malawi. Findings revealed a fragmented understanding of resilience among stakeholders and highlight the need for participatory approaches, localised resilience assessments and context‐specific interventions ...
Zondiwe Mabilabo Jere +4 more
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Convolutions of the generalized Pell and Pell-Lucas numbers
Filomat, 2016 We consider the convolution of the generalized Pell numbers-P(s) n,m and the convolution of the generalized Pell-Lucas numbers-Q(s) n,m. For s = 0, the sequence P(0) n,m represents the generalized Pell numbers Pn;m, and the sequence Q(0) n,m represents the generalized Pell-Lucas numbers Qn,m ([1], [2]). For m = 2 and s = 0, the numbers P(0)
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Fostering Climate Change Education for Effective Locally‐Led and Community‐Led Adaptation
Climate Resilience and Sustainability, Volume 5, Issue 1, June 2026.This study highlights the transformative role of climate change education (CCE), understood here as formal, non‐formal and informal learning that equips people with the knowledge, skills, values and attitudes needed to act as agents of change for climate mitigation and adaptation in enhancing locally‐led adaptation (LLA)—where local actors shape ...
Sardar Al Imran +3 more
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Arithmetic properties of q-Fibonacci numbers and q-pell numbers
, 2006 We investigate some arithmetic properties of the q-Fibonacci numbers and the q-Pell ...
Hao Pan, Pan, Hao
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On hyper-dual vectors and angles with Pell, Pell-Lucas numbers
In this paper, we introduce two types of hyper-dual numbers with components including Pell and Pell-Lucas numbers. This novel approach facilitates our understanding of hyper-dual numbers and properties of Pell and Pell-Lucas numbers.
Atasoy, Ali, Babadağ, Faik
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Toward an Efficient Shifted Cholesky QR for Applications in Model Order Reduction Using pyMOR
Proceedings in Applied Mathematics and Mechanics, Volume 26, Issue 2, June 2026.ABSTRACT Many model order reduction (MOR) methods rely on the computation of an orthonormal basis of a subspace onto which the large full order model is projected. Numerically, this entails the orthogonalization of a set of vectors. The nature of the MOR process imposes several requirements for the orthogonalization process.
Maximilian Bindhak +2 more
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