Results 31 to 40 of about 48,754 (287)

Non-singular Green's functions for the unbounded Poisson equation in one, two and three dimensions

, 2019
This paper is a revised version of the original paper of same title--published in Applied Mathematics Letters 89--containing some corrections and clarifications to the original text.
Hejlesen, Mads Mølholm, Walther, Jens Honoré, Winckelmans, Grégoire   +2 more
core   +1 more source

Calculation of Green's Function for Poisson's Equation in Plane Polar Coordinates

Trends in Computational and Applied Mathematics
A new calculation of Green's function for Poisson's equation in plane polar coordinates is presented. The method consists in first calculating the solution to the simpler problem, but with the same Green's function, that is obtained with the ...
R. T. Couto
doaj   +1 more source

Green's function for gravitational waves in FRW spacetimes

, 1993
A method for calculating the retarded Green's function for the gravitational wave equation in Friedmann-Roberson-Walker spacetimes, within the formalism of linearized Einstein gravity is developed.
A. Kosowsky, A. Kosowsky, Albert Stebbins, B. Allen, Bruce Allen, Bryce S. DeWitt, Bryce S. DeWitt, C. Misner, D. Bennett, J. Hadamard, J. S. Dowker, J. S. Dowker, L. H. Ford, L. P. Grishchuk, L. P. Grishchuk, L. P. Grishchuk, L. P. Grishchuk, L. Parker, L. Parker, Michael S. Turner, N. D. Birrell, N. Turok, P. C. Waylen, P. C. Waylen, R. G. McLenaghan, R. R. Caldwell, S. Veeraraghavan, S. Weinberg   +27 more
core   +1 more source

Universal behavior of quantum Green's functions

, 2003
We consider a general one-particle Hamiltonian H = - \Delta_r + u(r) defined in a d-dimensional domain. The object of interest is the time-independent Green function G_z(r,r') = .
Bielinska-Waz D., Brownell F. H., Changa M. E., Delabaere E., Driscoll T. A., J. K. Percus, L. Šamaj, P. Kalinay, Patil S. H., Sunada T., Zicovichwilson C., Šamaj L., Šamaj L.   +12 more
core   +1 more source

Strongly Correlated Topological Superconductors and Topological Phase Transitions via Green's Function

, 2012
We propose several topological order parameters expressed in terms of Green's function at zero frequency for topological superconductors, which generalizes the previous work for interacting insulators.
A. A. Abrikosov, G. E. Volovik, M. Nakahara, Shou-Cheng Zhang, Zhong Wang   +4 more
core   +1 more source

Revealing the structure of land plant photosystem II: the journey from negative‐stain EM to cryo‐EM

FEBS Letters, EarlyView.
Advances in cryo‐EM have revealed the detailed structure of Photosystem II, a key protein complex driving photosynthesis. This review traces the journey from early low‐resolution images to high‐resolution models, highlighting how these discoveries deepen our understanding of light harvesting and energy conversion in plants.
Roman Kouřil
wiley   +1 more source

The Neural Network Fitting Method for Green’s Function of Finite Water Depth

Journal of Marine Science and Engineering
In marine hydrodynamics, the core of the boundary element method (BEM) lies in the numerical calculation of the free-surface Green’s function. With the rise of artificial intelligence, using neural networks to fit Green’s function has become a new trend,
Wenhui Xiong, Zhinan Mi, Yu Liu, Lunwei Zhang   +3 more
doaj   +1 more source

MATRIX GREEN’S FUNCTION OF DOUBLE-DIFFUSIVITY PROBLEM AND ITS APPLICATIONS TO PROBLEMS WITH INNER POINT SOURCE

TASK Quarterly, 2019
The matrix Green’s function of the initial-boundary value problem of admixture double-diffusivity is defined. The initial-boundary value problem with a point source is formulated for the matrix elements for determination of the matrix Green’s function ...
YEVHEN CHAPLYA, OLHA CHERNUKHA, YURII BILUSHCHAK   +2 more
doaj   +1 more source

Green's Function for Nonlocal Potentials [PDF]

, 1997
The single-particle nuclear potential is intrinsically nonlocal. In this paper, we consider nonlocalities which arise from the many-body and fermionic nature of the nucleus. We investigate the effects of nonlocality in the nuclear potential by developing
A B Balantekin, Aoki K, Aoki K, Aoki K, Aoki K, Baseia B, Brink D M, Feshbach H, Feshbach H, Frahn W E, Fröbrich P, Galetti D, J F Beacom, Jackson D F, M A Cândido Ribeiro, Mackintosh R S, Mott N F, Ziman J M   +17 more
core   +2 more sources

Mapping the evolution of mitochondrial complex I through structural variation

FEBS Letters, EarlyView.
Respiratory complex I (CI) is crucial for bioenergetic metabolism in many prokaryotes and eukaryotes. It is composed of a conserved set of core subunits and additional accessory subunits that vary depending on the organism. Here, we categorize CI subunits from available structures to map the evolution of CI across eukaryotes. Respiratory complex I (CI)
Dong‐Woo Shin, Tingting Chen, James A. Letts   +2 more
wiley   +1 more source