Results 11 to 20 of about 2,415 (165)
Hidden Symmetries of Stochastic Models [PDF]
, 2007 In the matrix product states approach to $n$ species diffusion processes the stationary probability distribution is expressed as a matrix product state with respect to a quadratic algebra determined by the dynamics of the process.
Aneva, Boyka
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A Priori Bounds And Existence Of Positive Solutions For Semilinear Elliptic Systems [PDF]
, 2017 We provide a-priori L∞ bounds for classical positive solutions of semilinear elliptic systems in bounded convex domains when the nonlinearities are below the power functions v^p and u^q for any (p,q) lying on the critical Sobolev hyperbola.
Mavinga, Nsoki, Pardo, R.
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Unfolding of eigenvalue surfaces near a diabolic point due to a complex perturbation [PDF]
, 2004 The paper presents a new theory of unfolding of eigenvalue surfaces of real symmetric and Hermitian matrices due to an arbitrary complex perturbation near a diabolic point.
A A Mailybaev +15 more
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, 2005 The paper develops Newton's method of finding multiple eigenvalues with one Jordan block and corresponding generalized eigenvectors for matrices dependent on parameters.
Anderson +38 more
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Entropic Heisenberg limits and uncertainty relations from the Holevo information bound [PDF]
, 2018 Strong and general entropic and geometric Heisenberg limits are obtained, for estimates of multiparameter unitary displacements in quantum metrology, such as the estimation of a magnetic field from the induced rotation of a probe state in three ...
Hall, Michael J. W.
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Quantum-enhanced multiparameter estimation in multiarm interferometers [PDF]
, 2015 Quantum metrology is the state-of-the-art measurement technology. It uses quantum resources to enhance the sensitivity of phase estimation beyond what reachable within classical physics.
Ciampini, Mario A. +5 more
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Extracting falsifiable predictions from sloppy models
, 2007 Successful predictions are among the most compelling validations of any model. Extracting falsifiable predictions from nonlinear multiparameter models is complicated by the fact that such models are commonly sloppy, possessing sensitivities to different ...
Casey, Fergal P. +4 more
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Nonzero radial solutions for a class of elliptic systems with nonlocal BCs on annular domains [PDF]
, 2014 We provide new results on the existence, non-existence, localization and multiplicity of nontrivial solutions for systems of Hammerstein integral equations.
Infante, Gennaro, Pietramala, Paolamaria
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Asymptotic spectrum of multiparameter eigenvalue problems [PDF]
Proceedings of the Edinburgh Mathematical Society, 1996 Results are given for the asymptotic spectrum of a multiparameter eigenvalue problem in Hilbert space. They are based on estimates for eigenvalues derived from the minim un-maximum principle. As an application, a multiparameter Sturm-Liouville problem is considered.
openaire +1 more source
The sloppy model universality class and the Vandermonde matrix
, 2006 In a variety of contexts, physicists study complex, nonlinear models with many unknown or tunable parameters to explain experimental data. We explain why such systems so often are sloppy; the system behavior depends only on a few `stiff' combinations of ...
C. Lanczos +13 more
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