Results 41 to 50 of about 127,640 (324)

Free boundary cluster with Robin condition on the transmission interface

Calculus of Variations and Partial Differential Equations, 2023
We formulate and study a variational two-phase free boundary problem with Robin condition on the interface between the two phases, and we prove existence and regularity of solutions in dimension ...
Lo Bianco, Serena Guarino, La Manna, Domenico Angelo, Velichkov, Bozhidar   +2 more
openaire   +4 more sources

Talenti comparison results and rigidity results for anisotropic p-Laplacian operator with Robin boundary conditions

Advanced Nonlinear Studies
In this paper, we first establish the Talenti comparison principle for anisotropic p-Laplacian equation with Robin boundary conditions. This achievement not only extends classical Talenti comparison result for Laplacian equation with Robin boundary ...
Chen Lu, Yang Yabo
doaj   +1 more source

The Pauli equation with complex boundary conditions

, 2012
We consider one-dimensional Pauli Hamiltonians in a bounded interval with possibly non-self-adjoint Robin-type boundary conditions. We study the influence of the spin-magnetic interaction on the interplay between the type of boundary conditions and the ...
Albeverio S, Assis P E G, Assis P E G, Bender C M, Berestetskii V B, Blasi A, Borisov D, Caliceti E, D Kochan, D Krejčiřík, Ergun E, Jin L, Jones H F, Kato T, Kochan D Krejčiřík D Novák R Siegl P, Krejčiřík D, Krejčiřík D, Krejčiřík D, Krejčiřík D Siegl P Železný, Landau L D, Landau L D, Longhi S, P Siegl, R Novák, Znojil M, Znojil M   +25 more
core   +1 more source

Influence of Sample Preparation and Processing Procedures on the Thermal Diffusivity of MgO‐C Refractories

Advanced Engineering Materials, EarlyView.
The thermal diffusivity of MgO‐C refractories is highly sensitive to sample preparation and processing procedures. In this article, the effects of coking sequence, machining conditions, structural inhomogeneity, and graphite coating application on measurements using laser flash apparatus are systematically investigated.
Luyao Pan, Rhena Wulf, Till M. J. Stadtmüller, Christos G. Aneziris, Tobias M. Fieback   +4 more
wiley   +1 more source

Impact of space-time curvature coupling on the vacuum energy induced by a magnetic topological defect in flat space-time of arbitrary dimension

Nuclear Physics B
We have investigated vacuum polarization of a quantized charged massive scalar field in the presence of a magnetic topological defect, modeled as an impenetrable tube of finite thickness carrying magnetic flux. At the tube’s surface, we imposed a general
V.M. Gorkavenko, O.V. Barabash, I.V. Ivanchenko, P.O. Nakaznyi, M.S. Tsarenkova, N.S. Yakovenko, A.O. Zaporozhchenko   +6 more
doaj   +1 more source

Four‐Point Bending Tests at High Temperatures on Commercial MgO‐C Refractory Bricks with and Without Recyclate Considering Different Carbon Contents

Advanced Engineering Materials, EarlyView.
Four‐point bending tests are conducted in an argon atmosphere on commercial MgO‐C brick grades with and without MgO‐C recyclate from room temperature up to 1300 °C. No detrimental effect of the MgO‐C recyclates on bending strength is found. Instead, a decisive influence of the total carbon content is observed, with lower total carbon contents ...
Alexander Schramm, Lukas Knöchel, Thomas Schemmel, Christos G. Aneziris, Anja Weidner, Horst Biermann   +5 more
wiley   +1 more source

NanoMOF‐Based Multilevel Anti‐Counterfeiting by a Combination of Visible and Invisible Photoluminescence and Conductivity

Advanced Functional Materials, EarlyView.
This study presents novel anti‐counterfeiting tags with multilevel security features that utilize additional disguise features. They combine luminescent nanosized Ln‐MOFs with conductive polymers to multifunctional mixed‐matrix membranes and powder composites. The materials exhibit visible/NIR emission and matrix‐based conductivity even as black bodies.
Moritz Maxeiner, Ruben Maile, Murat Cuvalli, Andreas Wolf, Ayisha Komal, Robert Oestreich, Christoph Janiak, Karl Mandel, Alexander Knebel, Klaus Müller‐Buschbaum   +9 more
wiley   +1 more source

Weber-Type Integral Transform Connected with Robin-Type Boundary Conditions

Mathematics, 2020
A new Weber-type integral transform and its inverse are defined for the representation of a function f(r,t), (r,t)∈[R,1]×[0,∞) that satisfies the Dirichlet and Robin-type boundary conditions f(R,t)=f1(t), f(1,t)−α∂f(r,t)∂r|r=1=f2(t), respectively.
Thanaa Elnaqeeb, Nehad Ali Shah, Dumitru Vieru   +2 more
doaj   +1 more source

Hybrid method for singularly perturbed Robin type parabolic convection–diffusion problems on Shishkin mesh

Partial Differential Equations in Applied Mathematics, 2023
This work presents a numerical solution to singularly perturbed Robin-type parabolic convection–diffusion problems. A hybrid method that combines the central difference scheme in the inner region and the midpoint of the upwind scheme in the outer region ...
Fasika Wondimu Gelu, Gemechis File Duressa   +1 more
doaj   +1 more source

Boundary Data Maps for Schrodinger Operators on a Compact Interval [PDF]

, 2010
We provide a systematic study of boundary data maps, that is, 2 \times 2 matrix-valued Dirichlet-to-Neumann and more generally, Robin-to-Robin maps, associated with one-dimensional Schrodinger operators on a compact interval [0,R] with separated boundary
Clark, Stephen, Gesztesy, Fritz, Mitrea, Marius   +2 more
core