Results 21 to 30 of about 883,571 (269)
Mathematics, 2022 Invariant finite-difference schemes are considered for one-dimensional magnetohydrodynamics (MHD) equations in mass Lagrangian coordinates for the cases of finite and infinite conductivity.
Vladimir Dorodnitsyn, Evgeniy Kaptsov
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Compensatory measures in European nature conservation law [PDF]
, 2014 The Birds and Habitats Directives are the cornerstones of EU nature conservation law, aiming at the conservation of the Natura 2000 network, a network of protected sites under these directives, and the protection of species.
Van Hoorick, Geert
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Symmetry Analysis and Conservation Laws for a Time-Fractional Generalized Porous Media Equation
Mathematics, 2022 The symmetry group method is applied to study a class of time-fractional generalized porous media equations with Riemann–Liouville fractional derivatives. All point symmetry groups and the corresponding optimal subgroups are determined.
Tianhang Gong, Wei Feng, Songlin Zhao
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SYMMETRY AND CONSERVATION LAWS [PDF]
Proceedings of the National Academy of Sciences, 1964 Symmetry and invariance considerations, and even conservation laws, played undoubtedly an important role in the thinking of the early physicists, such as Galileo and Newton, and probably even before then. However, these considerations were not thought to be particularly important and were articulated only rarely.
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A Time Two-Mesh Finite Difference Numerical Scheme for the Symmetric Regularized Long Wave Equation
Fractal and Fractional, 2023 The symmetric regularized long wave (SRLW) equation is a mathematical model used in many areas of physics; the solution of the SRLW equation can accurately describe the behavior of long waves in shallow water. To approximate the solutions of the equation,
Jingying Gao +3 more
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Scaling Symmetry and a New Conservation Law of the Harry Dym Equation [PDF]
Mathematics Interdisciplinary Research, 2021 In this paper, we obtain a new conservation law for the Harry Dym equation by using the scaling method. This method is algorithmic and based on variational calculus and linear algebra. In this method, the density of the conservation law is constructed by
Mehdi Jafari +2 more
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Absolute conservation law for black holes [PDF]
, 1999 In all 2d theories of gravity a conservation law connects the (space-time dependent) mass aspect function at all times and all radii with an integral of the matter fields.
A. Barvinsky +48 more
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Correlation functions, Bell's inequalities and the fundamental conservation laws
, 2004 I derive the correlation function for a general theory of two-valued spin variables that satisfy the fundamental conservation law of angular momentum. The unique theory-independent correlation function is identical to the quantum mechanical correlation ...
Afriat A. +6 more
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Getting deeper insight into stopping power problems in radiation physics using the Noether's theorem corollary [PDF]
Nuclear Technology and Radiation Protection, 2014 The theories that combine two different approaches in dealing with interacting objects, for instance, treating electromagnetic laser field classically, and the interacting atom as a quantum object, have some ambiguities and, as such, they should
Ristić Vladimir M. +3 more
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Constraints for quantum logic arising from conservation laws and field fluctuations
, 2005 We explore the connections between the constraints on the precision of quantum logical operations that arise from a conservation law, and those arising from quantum field fluctuations. We show that the conservation-law based constraints apply in a number
Barnett S M +6 more
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