Results 151 to 160 of about 6,950 (285)
Boundary controllability for a 1D degenerate parabolic equation with a Robin boundary condition
Mathematics of Control, Signals, and SystemsAbstractIn this paper, we prove the null controllability of a one-dimensional degenerate parabolic equation with a weighted Robin boundary condition at the left endpoint, where the potential has a singularity. We use some results from the singular Sturm–Liouville theory to show the well-posedness of our system.
Leandro Galo-Mendoza +1 more
openaire +2 more sources
Electronic Journal of Differential EquationsThis article concerns the non-steady magneto-hydro-dynamics (MHD) heat system with Joule and buoyancy effects under mixed boundary conditions. The boundary conditions for fluids can include the stick, total pressure, vorticity, total stress conditions ...
Tujin Kim
doaj
Lower bounds for the blow-up time of nonlinear parabolic problems with Robin boundary conditions
Electronic Journal of Differential Equations, 2014 In this article, we find a lower bound for the blow-up time of solutions to some nonlinear parabolic equations under Robin boundary conditions in bounded domains of R^n.
Khadijeh Baghaei, Mahmoud Hesaaraki
doaj
Journal of High Energy PhysicsIn this paper, we delve into the gravitational path integral of Gauss-Bonnet gravity in four spacetime dimensions, in the mini-superspace approximation.
Manishankar Ailiga +2 more
doaj +1 more source
Resonant \((p,q)\)-equations with Robin boundary condition
Electronic Journal of Differential Equations, 2018 This paper deals with the study of a nonlinear nonhomogeneous Robin problem driven by the sum of two quasilinear operators.
Michael E. Filippakis +1 more
openaire +2 more sources
Neumann-Robin problem for p(x)-Laplacian equations in a domain with the boundary edge
Electronic Journal of Differential EquationsWe investigate the behavior of weak solutions to the mixed problem with Neumann and Robin boundary conditions for an elliptic quasi-linear second-order equation with the variable $p(x)$-Laplacian in a neighborhood of the boundary edge.
Mikhail Borsuk
doaj
Growing sandpile problem with Dirichlet and Fourier boundary conditions
Electronic Journal of Differential Equations, 2017 In this work, we study the Prigozhin model for growing sandpile with mixed boundary conditions and an arbitrary time dependent angle of repose. On one part of the boundary the homogeneous Dirichlet boundary condition is provided, on the other one the ...
Estelle Nassouri +2 more
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Journal of Applied Polymer Science, EarlyView.Following extrusion at 265°C, components underwent a 45‐min annealing process at temperatures from 145°C to 225°C. The results show that increasing the annealing temperature elevates the onset of thermal softening, significantly enhancing thermal reliability.
Robin Mähnert +3 more
wiley +1 more source
Turning a new leaf: PhenoVision provides leaf phenology data at the global scale
Applications in Plant Sciences, EarlyView.Abstract Premise Plant phenology dictates many aspects of community function and ecosystem dynamics. Yet, global phenology data are still limited, especially in areas lacking monitoring programs. Here we present a new data resource, PhenoVision–Leaf, which extends a computer vision pipeline utilizing iNaturalist digital image vouchers to produce global‐
Erin L. Grady +6 more
wiley +1 more source
Scalar field theory under Robin boundary conditions: two-point function and energy-momentum tensor [PDF]
We reconsider four-dimensional scalar field theory in presence of Robin boundary conditions on two parallel plates. These boundary conditions are directly imposed in the path integral definition of the theory via auxiliary fields living on the plates. We
Gobeyn, Aaron +4 more
core +1 more source