Results 41 to 50 of about 5,756 (192)
Assessing circularity and sustainability of a value chain: A systematic literature review
Business Strategy and the Environment, Volume 34, Issue 1, Page 634-647, January 2025.Abstract Value chains have become increasingly complex, complicating the transition to a circular economy and the pursuit of sustainable development. This transition requires assessing economic, environmental, social, and governance dimensions. We conduct a systematic literature review to evaluate whether existing methodologies can effectively assess ...
Rosa Esteban‐Amaro +4 more
wiley +1 more source
Journal of Advanced Transportation, Volume 2025, Issue 1, 2025.With the rapid expansion of e‐commerce, effectively managing last‐mile delivery while satisfying consumer demands for timeliness and convenience has become increasingly imperative. Traditional delivery systems, which predominantly depend on human labor and freight vehicles, encounter significant challenges, including traffic congestion, escalating ...
Shaozhi Hong +3 more
wiley +1 more source
International Journal of Mathematics and Mathematical Sciences, Volume 2025, Issue 1, 2025.Let N,Z, and Q be the sets of natural, integers, and rational numbers, respectively. Our objective, involving a predetermined positive integer a, is to study a characterization of Diophantine equations of the form a + y2 = z2. Building on this result, we aim to obtain a characterization for Pythagorean n‐tuples.
Roberto Amato, Anwar Saleh Alwardi
wiley +1 more source
Symmetric Pythagorean Triple Preserving Matrices
Missouri Journal of Mathematical Sciences, 2001 zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Bruening, James T. +2 more
openaire +3 more sources
A New Generalization of Leonardo Sequences: Biperiodic Leonardo Sequence
Journal of Mathematics, Volume 2025, Issue 1, 2025.In this study, we define a new type of number sequence called biperiodic Leonardo sequence by the recurrence relation Lena,b=aLen−1+Len−2+1 (for even n) and Lena,b=bLen−1+Len−2+1 (for odd n) with the initial conditions Le0a,b=Le1a,b=1. We obtained the characteristic function, generating function, and Binet’s formula for this sequence and propose a ...
Hasan Gökbaş, Mohammad W. Alomari
wiley +1 more source
, 2021 Pythagorean triples are the positive integer solutions to the Pythagoras equation for right triangles, a2+b2 = c2. They have been studied for many years, many centuries in fact. In this short paper we present a method for computing Pythagorean triples in general, the first two cases of which go back at least to the early Pythagoreans (570-495 BCE), and
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Non-Euclidean Pythagorean triples, a problem of Euler, and rational points on K3 surfaces
, 2006 We discover suprising connections between three seemingly different problems: finding right triangles with rational sides in a non-Euclidean geometry, finding three integers such that the difference of the squares of any two is a square, and the problem ...
Robin Hartshorne, Ronald, Van Luijk
core +1 more source
Classification conjectures for Leavitt path algebras
Bulletin of the London Mathematical Society, Volume 56, Issue 10, Page 3011-3060, October 2024.Abstract The theory of Leavitt path algebras is intrinsically related, via graphs, to the theory of symbolic dynamics and C∗$C^*$‐algebras where the major classification programs have been a domain of intense research in the last 50 years. In this article, we gather together current lines of research in the classification of Leavitt path algebras ...
Guillermo Cortiñas, Roozbeh Hazrat
wiley +1 more source
, 2005 We present the proof of Diophantus' 20th problem (book VI of Diophantus' Arithmetica), which consists in wondering if there exist right triangles whose sides may be measured as integers and whose surface may be a square.
Delahaye, David, Mayero, Micaela
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Symmetry‐Determined Lasing from Incommensurate Moiré Nanoparticle Lattices
Advanced Optical Materials, Volume 12, Issue 24, August 23, 2024.This paper describes how the symmetry of moiré plasmonic nanoparticle lattice cavities can be used to predict multidirectional lasing characteristics over a broad wavelength and angle range. Incommensurate moiré lattices combine the advantages of aperiodic lattices with those of Bravais lattices for light‐based technologies.
Fabio M. Fasanelli +2 more
wiley +1 more source