Results 11  20
of
2,591
A nonlinear Hamiltonian structure for the Euler equations
 J. Math. Anal. Appl
, 1982
"... The Euler equations for inviscid incompressible fluid flow have a Hamiltonian structure in Eulerian coordinates, the Hamiltonian operator, though, depending on the vorticity. Conservation laws arise from two sources. One parameter symmetry groups, which are completely classified, yield the invarianc ..."
Abstract

Cited by 12 (0 self)
 Add to MetaCart
The Euler equations for inviscid incompressible fluid flow have a Hamiltonian structure in Eulerian coordinates, the Hamiltonian operator, though, depending on the vorticity. Conservation laws arise from two sources. One parameter symmetry groups, which are completely classified, yield
SYMMETRYENHANCING FOR A THIN FILM EQUATION
"... This thesis is concerned with the construction of new oneparameter symmetry groups and similarity solutions for a generalisation of the onedimensional thin film equation by the method of symmetryenhancing constraints involving judicious equationsplitting. Firstly by Lie classical analysis we obt ..."
Abstract
 Add to MetaCart
This thesis is concerned with the construction of new oneparameter symmetry groups and similarity solutions for a generalisation of the onedimensional thin film equation by the method of symmetryenhancing constraints involving judicious equationsplitting. Firstly by Lie classical analysis we
THE ZOO OF SOLITONS FOR CURVE SHORTENING IN R n
"... On the occasion of Richard Hamilton’s nth birthday Abstract. We provide a detailed description of solutions of Curve Shortening in R n that are invariant under some oneparameter symmetry group of the equation, paying particular attention to geometric properties of the curves, and the asymptotic pro ..."
Abstract
 Add to MetaCart
On the occasion of Richard Hamilton’s nth birthday Abstract. We provide a detailed description of solutions of Curve Shortening in R n that are invariant under some oneparameter symmetry group of the equation, paying particular attention to geometric properties of the curves, and the asymptotic
THE ZOO OF SOLITONS FOR CURVE SHORTENING IN Rn
"... On the occasion of Richard Hamilton’s nth birthday Abstract. We provide a detailed description of solutions of Curve Shortening in Rn that are invariant under some oneparameter symmetry group of the equation, paying particular attention to geometric properties of the curves, and the asymptotic prop ..."
Abstract
 Add to MetaCart
On the occasion of Richard Hamilton’s nth birthday Abstract. We provide a detailed description of solutions of Curve Shortening in Rn that are invariant under some oneparameter symmetry group of the equation, paying particular attention to geometric properties of the curves, and the asymptotic
Dealing with label switching in mixture models
 Journal of the Royal Statistical Society, Series B
, 2000
"... In a Bayesian analysis of finite mixture models, parameter estimation and clustering are sometimes less straightforward that might be expected. In particular, the common practice of estimating parameters by their posterior mean, and summarising joint posterior distributions by marginal distributions ..."
Abstract

Cited by 196 (0 self)
 Add to MetaCart
distributions, often leads to nonsensical answers. This is due to the socalled “labelswitching” problem, which is caused by symmetry in the likelihood of the model parameters. A frequent response to this problem is to remove the symmetry using artificial identifiability constraints. We demonstrate
1 Symmetries and Symmetry Breaking ∗
, 2003
"... In understanding the world of matter the introduction of symmetry principles following experimentation or using the predictive power of symmetry principles to guide experimentation is most profound. The conservation of energy, linear momentum, angular momentum, charge, and CPT involve fundamental sy ..."
Abstract
 Add to MetaCart
model for the strong NN interaction, one defines seven weak mesonnucleon couplings for π, ρ, and ω exchanges and according the change in isospin. These seven weak mesonnucleon couplings or another set of seven parameters in another theoretical framework characterize the hadronic weak interaction
Causal symmetries
, 2003
"... Abstract. Based on the recent work [4] we put forward a new type of transformation for Lorentzian manifolds characterized by mapping every causal futuredirected vector onto a causal futuredirected vector. The set of all such transformations, which we call causal symmetries, has the structure of a ..."
Abstract

Cited by 1 (0 self)
 Add to MetaCart
submonoid which contains as its maximal subgroup the set of conformal transformations. We find the necessary and sufficient conditions for a vector field ξ to be the infinitesimal generator of a oneparameter submonoid of pure causal symmetries. We speculate about possible applications to gravitation
Towards open string mirror symmetry . . .
, 2008
"... This work is concerned with branes and differential equations for one–parameter Calabi–Yau hypersurfaces in weighted projective spaces. For a certain class of B–branes we derive the inhomogeneous Picard–Fuchs equations satisfied by the brane superpotential. In this way we arrive at a prediction for ..."
Abstract

Cited by 28 (1 self)
 Add to MetaCart
This work is concerned with branes and differential equations for one–parameter Calabi–Yau hypersurfaces in weighted projective spaces. For a certain class of B–branes we derive the inhomogeneous Picard–Fuchs equations satisfied by the brane superpotential. In this way we arrive at a prediction
Order parameter of the chiral symmetry breaking Green Functions at one loop ∗
, 2006
"... Since order parameter of the chiral symmetry breaking Green Functions are a useful link between the OPE expansion and χPT we perform a calculation to the NLO in αs, working in the chiral limit, for all the 2 and 3 point ones. These Green Functions have no perturbative term in the chiral limit and th ..."
Abstract
 Add to MetaCart
Since order parameter of the chiral symmetry breaking Green Functions are a useful link between the OPE expansion and χPT we perform a calculation to the NLO in αs, working in the chiral limit, for all the 2 and 3 point ones. These Green Functions have no perturbative term in the chiral limit
AF flows and continuous symmetries
, 2008
"... We consider AF flows, i.e., oneparameter automorphism groups of a unital simple AF C ∗algebra which leave invariant the dense union of an increasing sequence of finitedimensional *subalgebras, and derive two properties for these; an absence of continuous symmetry breaking and a kind of real rank ..."
Abstract

Cited by 3 (3 self)
 Add to MetaCart
We consider AF flows, i.e., oneparameter automorphism groups of a unital simple AF C ∗algebra which leave invariant the dense union of an increasing sequence of finitedimensional *subalgebras, and derive two properties for these; an absence of continuous symmetry breaking and a kind of real
Results 11  20
of
2,591