Results 31 to 40 of about 249,692 (322)

A First Approach to Quantum Logical Shape Classification Framework

Mathematics
Quantum logic is a well-structured theory, which has recently received some attention because of its fundamental relation to quantum computing. However, the complex foundation of quantum logic borrowing concepts from different branches of mathematics as ...
Alexander Köhler, Marvin Kahra, Michael Breuß   +2 more
doaj   +1 more source

The Spectrum of the Neumann Matrix with Zero Modes [PDF]

, 2002
We calculate the spectrum of the matrix M' of Neumann coefficients of the Witten vertex, expressed in the oscillator basis including the zero-mode a_0. We find that in addition to the known continuous spectrum inside [-1/3,0) of the matrix M without the ...
, B. Feng, Bo Feng, D. Gaiotto, D.J. Gross, D.J. Gross, D.J. Gross, D.J. Gross, G. Moore, H. Hata, K. Furuuchi, K. Okuyama, K. Okuyama, L. Bonora, L. Rastelli, L. Rastelli, L. Rastelli, L. Rastelli, L. Rastelli, L. Rastelli, L. Rastelli, L. Rastelli, L. Rastelli, M.R. Douglas, Nicolas Moeller, P. Mukhopadhyay, T. Okuda, Yang-Hui He   +27 more
core   +3 more sources

Reversible Self-Dual Codes Over the Ring F₂ + uF₂

IEEE Access
In this study, we introduce bisymmetric self-dual codes over the finite field ${\mathbb F}_{2}$ of order two. We developed a method to generate binary bisymmetric self-dual codes from a small-length bisymmetric self-dual code by increasing its length ...
Hyun Jin Kim, Whan-Hyuk Choi
doaj   +1 more source

Macroecologia de carnívoros do Novo Mundo (Mammalia): envelopes de restrição e análise de padrões filogenéticos Macroecology of New World carnivores: constraint envelopes and analysis of phylogenetic patterns

Iheringia: Série Zoologia, 2004
The relationship between body size and geographic range was analyzed for 70 species of terrestrial Carnivora ("fissipeds") of the New World, after the control of phylogenetic patterns in the data using phylogenetic eigenvector regression.
Natália M. Tôrres, José Alexandre F. Diniz-Filho   +1 more
doaj   +1 more source

Simple eigenvectors of unbounded operators of the type “normal plus compact” [PDF]

Opuscula Mathematica, 2015
The paper deals with operators of the form \(A=S+B\), where \(B\) is a compact operator in a Hilbert space \(H\) and \(S\) is an unbounded normal one in \(H\), having a compact resolvent.
Michael Gil'
doaj   +1 more source

Correlation between diffusion tensor indices and fascicular morphometric parameters of peripheral nerve

Frontiers in Physiology, 2023
Introduction: Diffusion tensor imaging (DTI) is a magnetic resonance imaging (MRI) technique that measures the anisotropy of water diffusion. Clinical magnetic resonance imaging scanners enable visualization of the structural integrity of larger axonal ...
Luka Pušnik, Igor Serša, Nejc Umek, Erika Cvetko, Žiga Snoj, Žiga Snoj   +5 more
doaj   +1 more source

Construction of some missing eigenvectors of the XYZ spin chain at the discrete coupling constants and the exponentially large spectral degeneracy of the transfer matrix

, 2002
We discuss an algebraic method for constructing eigenvectors of the transfer matrix of the eight vertex model at the discrete coupling parameters. We consider the algebraic Bethe ansatz of the elliptic quantum group $E_{\tau, \eta}(sl_2)$ for the case ...
Affleck I, Akutsu Y, Andrews G E, Baxter R, Baxter R, Baxter R, Baxter R, Baxter R J, Deguchi T, Fabricius K, Felder G, Felder G, Fuchs J, Jimbo M, Jimbo M, Jimbo M (ed), Korff C, Kuniba A, Pokrovsky S, Takebe T, Takebe T, Takhtajan L, Tetsuo Deguchi   +22 more
core   +1 more source

A Termite‐Inspired Alternative to Cement

Advanced Functional Materials, EarlyView.
A termite‐inspired composite of clay, cellulose, and lignin forms a dense fibrous network with concrete‐like strength (32 MPa) and superior elasticity, processed at ambient temperature. Abstract Clay combined with organic materials is used by termites as a strong and durable construction material for their mounds with minimal environmental impact. Here,
Oren Regev, Peter Fratzl, Emeline Raguin, Markus Antonietti   +3 more
wiley   +1 more source

Uplifting edges in higher-order networks: Spectral centralities for non-uniform hypergraphs

AIMS Mathematics
Spectral analysis of networks states that many structural properties of graphs, such as the centrality of their nodes, are given in terms of their adjacency matrices.
Gonzalo Contreras-Aso , Cristian Pérez-Corral, Miguel Romance   +2 more
doaj   +1 more source

A regression and comparative study of United States and South African yield curves using principal component analysis

South African Journal of Economic and Management Sciences, 2018
Volatile markets and economic environments can significantly distort the shape and smoothness of yield curve movements. This study explores the influence of movements in United States interest rates on South African interest rates.
Kavir Patel, Ashfaaq Mohamed, Gary W. van Vuuren   +2 more
doaj   +1 more source