Results 221 to 230 of about 3,941 (265)
A constructive framework for discovery, design, and classification of volumetric Bravais weaves. [PDF]
PNAS NexusYildiz TT +3 more
europepmc +1 more source
Comments on Global Symmetries and Anomalies of 5d SCFTs. [PDF]
Commun Math PhysBenetti Genolini P, Tizzano L.
europepmc +1 more source
Dynamic Balance: A Thermodynamic Principle for the Emergence of the Golden Ratio in Open Non-Equilibrium Steady States. [PDF]
Entropy (Basel)Ruiz A.
europepmc +1 more source
Some of the next articles are maybe not open access.
Related searches:
Related searches:
Lie symmetries and superintegrability
Journal of Physics A: Mathematical and Theoretical, 2012We show that a known superintegrable system in two-dimensional real Euclidean space (Post and Winternitz 2011 J. Phys. A: Math. Theor. 44 162001) can be transformed into a linear third-order equation: consequently we construct many autonomous integrals?polynomials up to order 18?for the same system.
M.C. Nucci, S. Post
openaire +1 more source
Lie Symmetries of Ishimori Equation
Communications in Theoretical Physics, 2013Summary: The Ishimori equation is one of the most important (2+1)-dimensional integrable models, which is an integrable generalization of (1+1)-dimensional classical continuous Heisenberg ferromagnetic spin equations. Based on the importance of Lie symmetries in analysis of differential equations, in this paper we derive Lie symmetries for the Ishimori
openaire +1 more source
Annals of Physics, 1986
Optical systems are investigated with respect to their symmetries. Special emphasis is paid to refracting surfaces, which have no strict equivalents in mechanics. The \({\mathfrak so}(3)\)-symmetry of a spherical surface is discussed which allows the recursive calculation of its aberration coefficients. Explicit results are given for coefficients up to
openaire +2 more sources
Optical systems are investigated with respect to their symmetries. Special emphasis is paid to refracting surfaces, which have no strict equivalents in mechanics. The \({\mathfrak so}(3)\)-symmetry of a spherical surface is discussed which allows the recursive calculation of its aberration coefficients. Explicit results are given for coefficients up to
openaire +2 more sources
Deformation of Lie derivative and μ-symmetries
Journal of Physics A: Mathematical and Theoretical, 2007We introduce, in the spirit of Witten's gauging of exterior differential, a deformed Lie derivative that allows a geometrical interpretation of λ- and μ-symmetries, in complete analogy with standard symmetries. The case of variational symmetries (both for ODEs and for PDEs) is also considered in this approach, leading to λ- and μ-conservation laws.
openaire +1 more source
Lie symmetry analysis of the Heisenberg equation
Communications in Nonlinear Science and Numerical Simulation, 2017zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Zhonglong Zhao, Bo Han 0007
openaire +2 more sources
Lie symmetries and integrability
Physics Letters A, 1987Abstract All two-dimensional time independent potentials admitting point Lie symmetries and Noether symmetries are presented here. Excluding the potentials admitting time translation and dilation symmetries only, they form a small subclass of the known integrable potentials.
openaire +1 more source