Results 31 to 40 of about 1,376,709 (310)
Applications of Time-Dependent Density-Matrix Approach
Frontiers in Physics, 2020 The equations of motion for reduced density matrices form a coupled chain known as the Bogoliubov-Born-Green-Kirkwood-Yvon (BBGKY) hierarchy. To close the coupled chain at the two-body level, approximations for a three-body density matrix with one-body ...
Mitsuru Tohyama
doaj +1 more source
Matrix Approach to Land Carbon Cycle Modeling
Journal of Advances in Modeling Earth Systems, 2022 Land ecosystems contribute to climate change mitigation by taking up approximately 30% of anthropogenically emitted carbon. However, estimates of the amount and distribution of carbon uptake across the world's ecosystems or biomes display great ...
Yiqi Luo +14 more
doaj +1 more source
Matrix-product approach to conjugated polymers [PDF]
Physical Review B, 2000 18 pages, 2 figs and 3 tables ...
Martin-Delgado, M. +3 more
openaire +4 more sources
Domestic Tourism in Uruguay: a matrix approach
PASOS Revista de Turismo y Patrimonio Cultural, 2016 In this paper domestic tourism in Uruguay is analyzed by introducing an Origin-Destination matrix approach, and an attraction coefficient is calculated. We show that Montevideo is an attractive destination but to itself (even if it emits more trips than ...
Magdalena Domínguez Pérez
doaj +3 more sources
A matrix approach to polynomials
Linear Algebra and its Applications, 2003 zbMATH Open Web Interface contents unavailable due to conflicting licenses.
openaire +2 more sources
Remote Sensing, 2019 Natural rivers in urban areas bear significant potential to provide ecosystem services for the surrounding inhabitants. However, surface sealing by houses and street networks, urban drainage, disposal of waste and wastewater resulting from advancing ...
Manuel R. Beißler, Jochen Hack
doaj +1 more source
A Matrix Dynamics Approach to Golomb's Recursion [PDF]
The Electronic Journal of Combinatorics, 1997 In an unpublished note Golomb proposed a family of "strange" recursions of metafibonacci type, parametrized by $k$. Previously we showed that contrary to Golomb's conjecture, for each $k$ there are many increasing solutions, and an explicit construction for multiple solutions was displayed. By reformulating our solution approach using matrix dynamics,
Edward J. Barbeau +2 more
openaire +2 more sources
Matrix interpretation of multiple orthogonality [PDF]
, 2010 In this work we give an interpretation of a (s(d + 1) + 1)-term recurrence relation in terms of type II multiple orthogonal polynomials.We rewrite this recurrence relation in matrix form and we obtain a three-term recurrence relation for vector ...
Branquinho, Amílcar +2 more
core +2 more sources
Combined approach to strategic analysis of the financial condition of organizations
Вестник Северо-Кавказского федерального университетаIntroduction. The matrix approach is one of the common analytical tools in economic science. Its application is not very limited, and it serves as a supplement to a number of other analytical tools.
E. V. Berezhnaya +2 more
doaj +1 more source
A Simple Matrix Approach to Determination of the Helium Atom Energies
Jurnal Penelitian Fisika dan Aplikasinya, 2019 Calculation of He atomic energy levels using the first order perturbation theory taught in the Basic Quantum Mechanics course has led to relatively large errors.
Redi Kristian Pingak +2 more
doaj +1 more source