Results 21 to 30 of about 374,721 (319)
On cell problems for Hamilton-Jacobi equations with non-coercive Hamiltonians and its application to homogenization problems [PDF]
, 2015 We study a cell problem arising in homogenization for a Hamilton-Jacobi equation whose Hamiltonian is not coercive. We introduce a generalized notion of effective Hamiltonians by approximating the equation and characterize the solvability of the cell ...
Hamamuki, Nao +2 more
core +2 more sources
Homogenization of variational problems in manifold valued Sobolev spaces [PDF]
, 2008 Homogenization of integral functionals is studied under the constraint that admissible maps have to take their values into a given smooth manifold.
Babadjian, Jean-Francois +1 more
core +4 more sources
Journal of Algebra, 2003 Various concepts associated with quadratic algebras admit natural generalizations when the quadratic algebras are replaced by graded algebras which are finitely generated in degree 1 with homogeneous relations of degree N. Such algebras are referred to as {\sl homogeneous algebras of degree N}.
Berger, Roland +2 more
openaire +4 more sources
Are cryptocurrencies homogeneous? [PDF]
European Financial Management, 2019 AbstractThis article investigates if cryptocurrencies returns' are similarly affected by a selection of demand‐ and supply‐side determinants. Homogeneity among cryptocurrencies is tested via a least absolute shrinkage and selection operator (LASSO) model where determinants of Bitcoin returns are applied to a sample of 12 cryptocurrencies.
Bengtsson, Elias, Gustafsson, Frida
openaire +1 more source
Homogenization on arbitrary manifolds [PDF]
, 2014 We describe a setting for homogenization of convex hamiltonians on abelian covers of any compact manifold. In this context we also provide a simple variational proof of standard homogenization results.Comment: 17 pages, 1 ...
Contreras, Gonzalo +2 more
core +5 more sources
Geographic trends in range sizes explain patterns in bird responses to urbanization in Europe
European Journal of Ecology, 2019 The probability of occurrence of bird species in towns/cities increases with their range sizes, and Rapoport’s rule states that range sizes increase with latitude.
Michal Ferenc +4 more
doaj +1 more source
Automated Symbolic Upscaling: 2. Model Generation for Extended Applicability Regimes
Water Resources Research, 2023 In this second part of the two paper series, we detail an algorithmic procedure for systematically implementing the generalized closure form strategy presented in Part 1.
Kyle Pietrzyk, Ilenia Battiato
doaj +1 more source
Automated Symbolic Upscaling: 1. Model Generation for Extended Applicability Regimes
Water Resources Research, 2023 In porous media theory, upscaling techniques are fundamental to deriving rigorous Darcy‐scale models for flow and reactive transport in subsurface systems.
Kyle Pietrzyk, Ilenia Battiato
doaj +1 more source
Bayesian Numerical Homogenization [PDF]
, 2014 Numerical homogenization, i.e. the finite-dimensional approximation of solution spaces of PDEs with arbitrary rough coefficients, requires the identification of accurate basis elements.
Owhadi, Houman
core +3 more sources
Homothety curvature homogeneity and homothety homogeneity [PDF]
Annals of Global Analysis and Geometry, 2015 This article supersedes arXiv:1309 ...
Stana Nikcevic +2 more
openaire +3 more sources