Results 131 to 140 of about 6,728 (222)

On MAP Estimates and Source Conditions for Drift Identification in SDEs

Proceedings in Applied Mathematics and Mechanics, Volume 26, Issue 2, June 2026.
ABSTRACT We consider the inverse problem of identifying the drift in an stochastic differential equation (SDE) from n$n$ observations of its solution at M+1$M+1$ distinct time points. We derive a corresponding maximum a posteriori (MAP) estimate, we prove differentiability properties as well as a so‐called tangential cone condition for the forward ...
Daniel Tenbrinck, Nikolas Uesseler, Philipp Wacker, Benedikt Wirth   +3 more
wiley   +1 more source

Multiple positive solutions for Schrodinger-Poisson systems involving concave-convex nonlinearities

Electronic Journal of Differential Equations, 2019
In this article, we study the existence of multiple positive solutions for Schrodinger-Poisson systems involving concave-convex nonlinearities and sign-changing weight potentials.
Haining Fan
doaj  

Nehari manifold approach for fractional $p(\cdot)$-Laplacian system involving concave-convex nonlinearities

Electronic Journal of Differential Equations, 2020
In this article, using Nehari manifold method we study the multiplicity of solutions of the nonlocal elliptic system involving variable exponents and concave-convex nonlinearities, $$\displaylines{ (-\Delta)_{p(\cdot)}^{s} u=\lambda a(x)| u|^{q(x ...
Reshmi Biswas, Sweta Tiwari
doaj  

Trust‐region filter algorithms utilizing Hessian information for gray‐box optimization

AIChE Journal, Volume 72, Issue 5, May 2026.
Abstract Optimizing industrial processes often involves gray‐box models that couple algebraic glass‐box equations with black‐box components lacking analytic derivatives. Such systems challenge derivative‐based solvers. The classical trust‐region filter (TRF) algorithm provides a robust framework but requires extensive parameter tuning and numerous ...
Gul Hameed, Tao Chen, Antonio del Rio Chanona, Lorenz T. Biegler, Michael Short   +4 more
wiley   +1 more source

Study on the fastening characteristics of preformed helical fittings considering the surface effect of transmission lines. [PDF]

Sci Rep, 2023
Zhongbin L, Guanghui L, Fangyu L, Chuan W, Yaguang T, Jufang L, Zhongfei Y, Xiaohui L, Yuntao S, Bo Y.   +9 more
europepmc   +1 more source

A Performance‐Based Earthquake Fatality Modeling Framework Using Collapse Volume Ratios

Earthquake Spectra, Volume 42, Issue 2, May 2026.
Conventional earthquake fatality models are commonly implemented using a binary representation of building collapse, an assumption that overlooks severe failure modes and systematically underestimates fatalities. To address this limitation, this study advances the collapse volume ratio—a continuous metric quantifying the reduction of survivable space ...
Luis Ceferino, Yinchen Yi, Wenxiao Li, Yvonne Merino, Luis Moya, Kimberley Shoaf, Emily So   +6 more
wiley   +1 more source

Impact of Freezing on the Nanoarchitecture and Techno‐Functional Properties of Camel Myofibrillar Proteins: Insights From Atomic Force Microscopy

Food Science &Nutrition, Volume 14, Issue 5, May 2026.
Schematic overview of the extraction of camel myofibrillar proteins from Longissimus lumborum (LL) and Biceps femoris (BF) muscles and the evaluation of freezing‐induced changes. The study integrates techno‐functional analyses (protein solubility, surface hydrophobicity, reactive sulfhydryl groups, SDS–PAGE) with nanoarchitectural characterization ...
Ahmed‐Laloui Hamza, Rahmani Abderrahmen, Cherb Nora, Bendjaballah Sandra, Ramdani Nacira, Maqsood Sajid, Seid Mahdi Jafari   +6 more
wiley   +1 more source

Exactness results for generalized Ambrosetti-Brezis-Cerami problem and related one-dimensional elliptic equations

Electronic Journal of Differential Equations, 2000
We consider the boundary-value problem $$ displaylines{-(varphi _{p}(u'))' =varphi _{alpha }(u) +lambda varphi _{eta}(u) quadhbox{in }(0, 1) cr u(0) =u(1)=0, } $$ where $varphi _{p}(x)=left| x ight| ^{p-2}x$, $p,alpha, eta >1$ and $lambda in mathbb{R}^*$.
M. Derhab, S. M. Bouguima, A. Benmezai, Idris Addou   +3 more
doaj  

Propagation and Depropagation Kinetics of Tetrahydrofurfuryl Methacrylate Investigated by PLP‐SEC

Macromolecular Chemistry and Physics, Volume 227, Issue 9, 15 May 2026.
The propagation and depropagation kinetics of the bio‐based monomer tetrahydrofurfuryl methacrylate (THFMA) were quantified via PLP‐SEC over a wide temperature range (10∘C$^\circ{\rm C}$–160°C). Beyond that, lauryl methacrylate (LMA) was investigated as a reference system.
Milena Waldhoff, Samuel C. J. Wendler, Tanja Junkers, Philipp Vana   +3 more
wiley   +1 more source

Multiplicity of solutions for a nonhomogeneous quasilinear elliptic equation with concave-convex nonlinearities

Advances in Nonlinear Analysis
We investigate the multiplicity of solutions for a quasilinear scalar field equation with a nonhomogeneous differential operator defined bySu≔−divϕu2+∣∇u∣22∇u+ϕu2+∣∇u∣22u,Su:= -\hspace{0.1em}\text{div}\hspace{0.1em}\left\{\phi \left(\frac{{u}^{2 ...
Qi Wanting, Zhang Xingyong
doaj   +1 more source