Results 31 to 40 of about 32,330 (255)

A class of Galerkin schemes for time-dependent radiative transfer [PDF]

open access: yes, 2015
The numerical solution of time-dependent radiative transfer problems is challenging, both, due to the high dimension as well as the anisotropic structure of the underlying integro-partial differential equation.
Egger, Herbert, Schlottbom, Matthias
core   +2 more sources

Existence of solution for a class of fractional Hamiltonian-type elliptic systems with exponential critical growth in R

open access: yesJournal of Mathematics and Physics
In this paper, using the linking theorem and variational methods, we establish the existence of at least one positive solution for a class of fractional Hamiltonian-type elliptic systems with exponential critical growth in R.
Shengbing Deng, Junwei Yu
semanticscholar   +1 more source

Investigating the cell of origin and novel molecular targets in Merkel cell carcinoma: a historic misnomer

open access: yesMolecular Oncology, EarlyView.
This study indicates that Merkel cell carcinoma (MCC) does not originate from Merkel cells, and identifies gene, protein & cellular expression of immune‐linked and neuroendocrine markers in primary and metastatic Merkel cell carcinoma (MCC) tumor samples, linked to Merkel cell polyomavirus (MCPyV) status, with enrichment of B‐cell and other immune cell
Richie Jeremian   +10 more
wiley   +1 more source

A variational approach to strongly damped wave equations

open access: yes, 2007
We discuss a Hilbert space method that allows to prove analytical well-posedness of a class of linear strongly damped wave equations. The main technical tool is a perturbation lemma for sesquilinear forms, which seems to be new.
A. Bátkai   +23 more
core   +2 more sources

Unrolling of Syngonium podophyllum: Functional Anatomy, Morphology and Modelling of Its Peltate Leaves

open access: yesAdvanced Biology, EarlyView.
The unrolling of the peltate leaves in Syngonium podophyllum is analyzed and quantified (left‐hand side to center). These measurements serve to verify a mathematical model for leaf unrolling based on the model used in Schmidt (2007). An additional formula for obtaining a layer mismatch from a prescribed radius is derived.
Michelle Modert   +4 more
wiley   +1 more source

Multiple Solutions for a Class of Biharmonic Nonlocal Elliptic Systems

open access: yesJournal of Nonlinear Mathematical Physics
We prove the existence of three distinct solutions for a biharmonic nonlocal elliptic system with singular terms under the Navier boundary conditions, by using variational methods and the theory of the variable exponent Sobolev space.
Ali Khaleghi, A. Razani
semanticscholar   +1 more source

Reduction for constrained variational problems on 3D null curves [PDF]

open access: yes, 2007
We consider the optimal control problem for null curves in de Sitter 3-space defined by a functional which is linear in the curvature of the trajectory.
Castagnino M.   +4 more
core   +2 more sources

Enhancing Corrosion Resistance and Mechanical Strength of 3D‐Printed Iron Polylactic Acid for Marine Applications via Laser Surface Texturing

open access: yesAdvanced Engineering Materials, EarlyView.
Laser surface texturing significantly improves the corrosion resistance and mechanical strength of 3D‐printed iron polylactic acid (Ir‐PLA) for marine applications. Optimal laser parameters reduce corrosion by 80% and enhance tensile strength by 25% and ductility by 15%.
Mohammad Rezayat   +6 more
wiley   +1 more source

Hamiltonian elliptic system involving nonlinearities with supercritical exponential growth

open access: yesAIMS Mathematics, 2023
In this paper, we deal with the existence of nontrivial solutions to the following class of strongly coupled Hamiltonian systems: \begin{document}$ \begin{equation*} \quad \left\{ \begin{array}{rclll} -{\rm div} \big(w(x)\nabla u\big) \ = \ g(x,v),&\
Y. R. S. Leuyacc
semanticscholar   +1 more source

Maps and fields with compressible density [PDF]

open access: yes, 2003
Properties of steady compressible flow for which geometric constraints have been placed on the potential function are derived, under hypotheses on the flow density and the singular set.
Otway, Thomas H.
core   +1 more source

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