Results 61 to 70 of about 1,776 (211)

Semicontinuous maps on module varieties [PDF]

open access: yes
We study semicontinuous maps on varieties of modules over finite-dimensional algebras. We prove that truncated Euler maps are upper or lower semicontinuous. This implies that g-vectors and E-invariants of modules are upper semicontinuous. We also discuss
Schröer, Jan   +2 more
core   +4 more sources

Upper Semicontinuous Property of Uniform Attractors for the 2D Nonautonomous Navier-Stokes Equations with Damping

open access: yesAbstract and Applied Analysis, 2013
Our aim is to investigate the long-time behavior in terms of upper semicontinuous property of uniform attractors for the 2D nonautonomous Navier-Stokes equations with linear damping and nonautonomous perturbation external force, that is, the convergence ...
Xin-Guang Yang, Jun-Tao Li
doaj   +1 more source

Engineering Thermochemistry and Process Technologies to Enable Gigaton‐Scale Sustainable Biochar Production

open access: yesSusMat, Volume 6, Issue 3, June 2026.
This review examines large‐scale biochar production technologies and process engineering from an engineering thermochemistry perspective. At the level of thermochemical fundamentals, we discuss thermochemical techniques, pyrolysis mechanisms, and key parameters governing biochar formation.
Dengguo Lai   +12 more
wiley   +1 more source

Viable solutions for second order nonconvex functional differential inclusions

open access: yesElectronic Journal of Differential Equations, 2005
We prove the existence of viable solutions for an autonomous second-order functional differential inclusions in the case when the multifunction that define the inclusion is upper semicontinuous compact valued and contained in the subdifferential of a ...
Vasile Lupulescu
doaj  

Best Proximity Pairs for Upper Semicontinuous Set-Valued Maps in Hyperconvex Metric Spaces

open access: yesFixed Point Theory and Applications, 2009
A best proximity pair for a set-valued map F:A⊸B with respect to a map g:A→A is defined, and new existence theorems of best proximity pairs for upper semicontinuous set-valued maps with respect to a homeomorphism are proved in hyperconvex ...
R. P. Agarwal   +3 more
doaj   +1 more source

Discretization methods for nonconvex differential inclusions

open access: yesElectronic Journal of Qualitative Theory of Differential Equations, 2009
We prove the existence of solutions for the differential inclusion $\dot x(t)\in F(t,x(t)) + f(t,x(t))$ for a multifunction $F$ upper semicontinuous with compact values contained in the generalized Clarke gradient of a regular locally Lipschitz function ...
M. Yarou
doaj   +1 more source

Accretionary Prism and Forearc Deformation Driven by the Beata Ridge Indentation in Southern Hispaniola: Insights From the Offshore San Pedro Basin

open access: yesGeochemistry, Geophysics, Geosystems, Volume 27, Issue 6, June 2026.
Abstract The Cretaceous–Eocene island arc of Hispaniola is currently shortened between the Bahamas carbonate platform to the north and the thickened crust of the Caribbean Large Igneous Province (CLIP) to the south. Within this transpressional setting, the 15–22‐km‐thick, ∼100‐km‐wide Beata Ridge (BR), the thickest portion of the CLIP, acts as a ...
J. M. Gorosabel‐Araus   +3 more
wiley   +1 more source

Upper semicontinuity of the lamination hull [PDF]

open access: yesESAIM: Control, Optimisation and Calculus of Variations, 2018
Let  K ⊆ ℝ2×2 be a compact set, let Krc be its rank-one convex hull, and let L (K) be its lamination convex hull. It is shown that the mapping K ↦ L̅(K̅) is not upper semicontinuous on the diagonal matrices in ℝ2×2, which was a problem left by Kolář. This is followed by an example of a 5-point set of 2 × 2 symmetric matrices with non-compact lamination
openaire   +3 more sources

Lipase Stability in Structured Lipid Synthesis: The Interplay of Substrate Characteristics and Strategies to Improve Its Operational Performance—A Critical Review

open access: yesJournal of Food Science, Volume 91, Issue 6, June 2026.
ABSTRACT Structured lipids (SLs) have attracted growing industrial interest due to their associated health benefits. Lipases, as highly selective and versatile biocatalysts, are central to the sustainable synthesis of SLs attributed to their ability to operate under mild reaction conditions. However, the limited operational stability of lipases remains
Evelyn Ling Lee   +4 more
wiley   +1 more source

Upper semicontinuous decompositions of the n-sphere [PDF]

open access: yes, 1968
Let G be a decomposition of S[raised n], n > 1 , having only a countable number of nondegenerate elements and F a subset of S[raised n]. If F is an I-set, it is shown that it is necessary and sufficient that G = G(F) in order that G be an upper ...
Mayhorn, Julius Tyrone, Jr.
core  

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