Results 21 to 30 of about 42,713 (266)

Multi-domain multivariate spectral collocation method for (2+1) dimensional nonlinear partial differential equations

Partial Differential Equations in Applied Mathematics, 2022
The novelty of this work rests upon the use of the domain partitioning technique in time variable when discretizing the domain of solution in spectral collocation algorithm.
M.P. Mkhatshwa, M. Khumalo, P.G. Dlamini
doaj   +1 more source

Electron-Like Fermi Surface and Remnant (pi,0) Feature in Overdoped La1.78Sr0.22CuO4 [PDF]

, 2001
We have performed an angle-resolved photoemission study of overdoped La1.78Sr0.22CuO4, and have observed sharp nodal quasiparticle peaks in the second Brillouin zone that are comparable to data from Bi2Sr2CaCu2O8+d.
Yoshida, T., Zhou, X. J., Nakamura, M., Kellar, S. A., Bogdanov, P. V., Lu, E. D., Lanzara, A., Hussain, Z., Ino, A., Mizokawa, T., Fujimori, A., Eisaki, H., Kim, C., Shen, Z. -X., Kakeshita, T., Uchida, S.   +15 more
core   +3 more sources

Downward surface flux computations in a vertically inhomogeneous grey planetary atmosphere Cálculo do fluxo radiativo superficial em uma atmosfera planetária cinza e verticalmente não-homogênea

Revista Brasileira de Meteorologia, 2008
We describe an efficient computational scheme for downward surface flux computations in a vertically inhomogeneous grey planetary atmosphere for different values of solar zenith angle.
Marcos Pimenta de Abreu
doaj   +1 more source

Large-eddy simulation of the lid-driven cubic cavity flow by the spectral element method [PDF]

, 2007
This paper presents the large-eddy simulation of the lid-driven cubic cavity flow by the spectral element method (SEM) using the dynamic model. Two spectral filtering techniques suitable for these simulations have been implemented.
D.K. Lilly, Daniel Weill, E. Leriche, E. Leriche, Emmanuel Leriche, G.S. Karamanos, H.M. Blackburn, J.P. Boyd, J.R. Koseff, J.S. Mullen, J.S. Smagorinsky, M. Germano, M. Lesieur, M.O. Deville, Michel O. Deville, P. Sagaut, P.N. Shankar, Paul F. Fischer, Roland Bouffanais, S.A. Jordan, Y. Maday   +20 more
core   +2 more sources

Bosonic Spectral Function and The Electron-Phonon Interaction in HTSC Cuprates [PDF]

, 2010
In Part I we discuss accumulating experimental evidence related to the structure and origin of the bosonic spectral function in high-temperature superconducting (HTSC) cuprates at and near optimal doping.
Dolgov, O. V., Kulic, M. L., Maksimov, E. G.   +2 more
core   +4 more sources

A Multiscale Pyramid Transform for Graph Signals [PDF]

, 2015
Multiscale transforms designed to process analog and discrete-time signals and images cannot be directly applied to analyze high-dimensional data residing on the vertices of a weighted graph, as they do not capture the intrinsic geometric structure of ...
Faraji, Mohammad Javad, Shuman, David I, Vandergheynst, Pierre   +2 more
core   +2 more sources

Theory of the nodal nematic quantum phase transition in superconductors [PDF]

, 2008
We study the character of an Ising nematic quantum phase transition (QPT) deep inside a d-wave superconducting state with nodal quasiparticles in a two-dimensional tetragonal crystal. We find that, within a 1/N expansion, the transition is continuous. To
E. Fradkin, Eduardo Fradkin, Eun-Ah Kim, J. P. Sethna, J. Zinn-Justin, John L. Cardy, Michael J. Lawler, Paul Oreto, Steven A. Kivelson, Subir Sachdev, T. Nattermann   +10 more
core   +3 more sources

European guidelines from the EHTG and ESCP for Lynch syndrome: an updated third edition of the Mallorca guidelines based on gene and gender

BJS (British Journal of Surgery), EarlyView., 2020
Recommendations for clinical and molecular identification of LS, surgical and endoscopic management of LS‐associated colorectal cancer and preventive measures for cancer were produced. The emphasis was on surgical and gastroenterological aspects of the cancer spectrum.
T. T. Seppälä, A. Latchford, I. Negoi, A. Sampaio Soares, R. Jimenez‐Rodriguez, L. Sánchez‐Guillén, D. G. Evans, N. Ryan, E. J. Crosbie, M. Dominguez‐Valentin, J. Burn, M. Kloor, M. von Knebel Doeberitz, F. J. B. van Duijnhoven, P. Quirke, J. R. Sampson, P. Møller, G. Möslein, on behalf of the European Hereditary Tumour Group (EHTG) and European Society of Coloproctology (ESCP)   +18 more
wiley   +1 more source

Least energy nodal solutions for elliptic equations with indefinite nonlinearity

Electronic Journal of Qualitative Theory of Differential Equations, 2014
We prove the existence of a nodal solution with two nodal domains for the Dirichlet problem with indefinite nonlinearity \begin{equation*} -\Delta_p u = \lambda |u|^{p-2} u + f(x) |u|^{\gamma-2} u \end{equation*} in a bounded domain $\Omega \subset ...
Vladimir Bobkov
doaj   +1 more source

Semi-analytical spectral methods in generalized curvilinear coordinates for analyzing sound fields in axisymmetric cavities

Mechanical Engineering Journal
This paper provides semi-analytical spectral methods for efficiently analyzing three-dimensional non-axisymmetric sound fields within axisymmetric cavities subject to arbitrary boundary conditions. By expanding the velocity potential using Fourier series
Yozo ARAKI, Toshiya SAMEJIMA
doaj   +1 more source