On the application of the matrix calculus in the theory of geometrical difference equationsordinary differential equationsNo Abstract available for this article.doi:10.1007/BF03045757W. HahnIndian Institute of TechnologySpringer IndiaProceedings of the Indian Academy of Sciences - Section A
We consider optimal control problems involving two constraint sets: one comprised of linear ordinary differential equations with the initial and terminal states specified and the other defined by the control variables constrained by simple bounds. When the intersection of these two sets is empty, typica...
Linear response theory for light dark matter-electron scattering in materialsPhys. Rev. Research (IF 3.5)Riccardo Catena, Nicola A. Spaldin Pub Date: 2024-09-03 Mie scattering theory applied to light scattering of large nonhomogeneous colloidal spheresJ. Chem. Phys. (IF 3.1)Christian Balderas-...
Whether fully successful or not, the theory at least attempts to make explicit the specific conditions under which external steering of science is possible and fruitful. In this respect, it favorably contrasts to some more recent approaches, in particular to the now fashionable idea of a linear ...
Nirenberg, On stability for difference schemes: A sharp form of Ga˙rding's inequality, Comm. Pure Appl. Math., 19 (1966), 473–492 MR0206534 0185.22801 CrossrefISIGoogle Scholar[44] P. D. Lax and , R. D. Richtmyer, Survey of the stability of linear finite difference equations, Comm....
Some of them are revisited in the next subsections. 2.3.1. Linear notations Linear notations are one of the most used representations. Those are cheap in computational resources and space, and with time have been standardized and widely used, which is the case for Simplified Molecular Input ...
I'm struggling to understand the relation between phi4 theory,non-linear sigma model and ferromagnets. I've read this in a paper(Phys.Rev.B14(1976)3110):'It is possible to describe the long-distance behavior of the Heisenberg ferromagnets in two different ways:the phi4 theory which correspon...
So, while two well-known physicists coming out against a theory of everything is compelling, it really shouldn't seem like anything new for Hawking. "I take the positivist view point that a physical theory is just a mathematical model and that it is meaningless to ask whether it corresponds...
Nonlinear relations are the subject of General Relativity Theory, where linear transforms only apply to infinitesimal coordinates (cdt,dx,dy,dz). Call t,x,y,z the coordinates in one system (S) and t',x',y',z' the coordinates in the other (S'). Assume the axes are so oriented that...
V. Ivanov, “On the solution of certain convolution type integral equations of the first kind by the method of regularization,” Zh. Vychisl. Mat. Mat. Fiz.,8, No. 2, 310–321 (1968). Google Scholar A. Asanov, “Regularization and the uniqueness of the solution of linear Volterra ...