Results 61 to 70 of about 52,018 (229)
Classical and quantum ergodicity on orbifolds
, 2012 We extend to orbifolds classical results on quantum ergodicity due to Shnirelman, Colin de Verdi\`ere and Zelditch, proving that, for any positive, first-order self-adjoint elliptic pseudodifferential operator P on a compact orbifold X with positive ...
A. Adem +30 more
core +1 more source
The importance of considering regimes in long‐term asset allocation to real estate
Real Estate Economics, EarlyView.Abstract We investigate the long‐term, regime‐dependent asset allocation of an investor's wealth in a mixed‐asset portfolio that includes publicly traded real estate. We show that augmenting standard VAR models with Markov‐switching features not only improves predictive power for asset returns but also introduces economically meaningful horizon effects
Massimo Guidolin +2 more
wiley +1 more source
Topological Wiener-Wintner theorems for amenable operator semigroups
, 2013 Inspired by topological Wiener-Wintner theorems we study the mean ergodicity of amenable semigroups of Markov operators on $C(K)$ and show the connection to the convergence of strong and weak ergodic nets.
Schreiber, Marco
core +1 more source
British Journal of Mathematical and Statistical Psychology, EarlyView.Abstract Generalizability theory (G‐theory) defines a statistical framework for assessing measurement reliability by decomposing observed variance into meaningful components attributable to persons, facets, and error. Classic G‐theory assumes homoscedastic residual variances across measurement conditions, an assumption that is often violated in ...
Philippe Rast, Peter E. Clayson
wiley +1 more source
Time Integrators for Molecular Dynamics
Entropy, 2013 This paper invites the reader to learn more about time integrators for Molecular Dynamics simulation through a simple MATLAB implementation. An overview of methods is provided from an algorithmic viewpoint that emphasizes long-time stability and finite ...
Nawaf Bou-Rabee
doaj +1 more source
Ergodicity Breaking in Area-Restricted Search of Avian Predators
Physical Review X, 2022 Quantifying and comparing patterns of dynamical ecological systems requires averaging over measurable quantities. For example, to infer variation in movement and behavior, metrics such as step length and velocity are averaged over large ensembles.
Ohad Vilk +6 more
doaj +1 more source
Stationarity and ergodicity for an affine two factor model
, 2013 We study the existence of a unique stationary distribution and ergodicity for a 2-dimensional affine process. The first coordinate is supposed to be a so-called alpha-root process with \alpha\in(1,2]. The existence of a unique stationary distribution for
Duffie +11 more
core +1 more source
Wave Tracing: Generalizing The Path Integral To Wave Optics
Computer Graphics Forum, EarlyView.Abstract Modeling the wave nature of light and the propagation and diffraction of electromagnetic fields is crucial for the accurate simulation of many phenomena, yet wave simulations are significantly more computationally complex than classical ray‐based models.
Shlomi Steinberg, Matt Pharr
wiley +1 more source
Quantum ergodicity for Pauli Hamiltonians with spin 1/2
, 2000 Quantum ergodicity, which expresses the semiclassical convergence of almost all expectation values of observables in eigenstates of the quantum Hamiltonian to the corresponding classical microcanonical average, is proven for non-relativistic quantum ...
Bambusi D +21 more
core +1 more source
Uniformly Ergodic Multioperators [PDF]
Transactions of the American Mathematical Society, 1995 A version of the uniform ergodic theorem valid for commuting multioperators is given.
Mbekhta, M., Vasilescu, F.-H.
openaire +1 more source