Results 81 to 90 of about 1,126,383 (361)
Nonequilibrium Period with Emergence of Marangoni Circulations in Meniscus Splitting
Advanced Materials Interfaces, EarlyView.The emergence and evolution of Marangoni convection in the meniscus splitting phenomenon are investigated. During the mass circulation of viscous fluids, the confluence and bifurcation of polymer dispersions beneath the evaporative interface lead to the inhomogeneous densification of the skin layer.
Leijie Wu, Kosuke Okeyoshi
wiley +1 more source
A fixed point theorem for multivalued mappings
Electronic Journal of Qualitative Theory of Differential Equations, 2004 A generalization of the Leray-Schauder principle for multivalued mappings is given. Using this result, an existence theorem for an integral inclusion is obtained.
C. Avramescu
doaj +1 more source
A Fixed Point Theorem for Multivalued Mappings with -Distance
, 2014 We mainly study fixed point theorem for multivalued mappings with -distance using Wardowski’s technique on complete metric space. Let be a metric space and let be a family of all nonempty bounded subsets of . Define by Considering -distance, it is proved
Ö. Acar, I. Altun
semanticscholar +1 more source
Advanced Materials Technologies, EarlyView.Fully printed bipolar organic thermoelectric generators are fabricated on flexible substrates and characterized entirely under ambient conditions. The devices exhibit Seebeck coefficients up to 30 µV K−1 and output powers up to 8.8 nW, with enhanced performance under bending.
Loup Chopplet +7 more
wiley +1 more source
A Generalization of Kannan's Fixed Point Theorem
Fixed Point Theory and Applications, 2009 In order to observe the condition of Kannan mappings, we prove a generalization of Kannan's fixed point theorem. Our theorem involves constants and we obtain the best constants to ensure a fixed point.
Yusuke Enjouji +2 more
doaj +1 more source
Fixed Point Theorem for W-h Contraction Mappings In Generalized Menger Spaces [PDF]
, 2023 ABDERRAHIM MBARKI
openalex +1 more source
Terahertz Volume Plasmon‐Polariton Modulation in All‐Dielectric Hyperbolic Metamaterials
Advanced Optical Materials, EarlyView.THz volume plasmon‐polariton (VPP) propagation through plasmon‐based hyperbolic metamaterials, made of alternating layers of doped and undoped III‐V semiconductors. Abstract The development of plasmonics and related applications in the terahertz range faces limitations due to the intrinsic high electron density of the standard metals.
Stefano Campanaro +3 more
wiley +1 more source
On a fixed point theorem of Greguš
International Journal of Mathematics and Mathematical Sciences, 1986 We consider two selfmaps T and I of a closed convex subset C of a Banach space X which are weakly commuting in X, i.e.‖TIx−ITx‖≤‖Ix−Tx‖ for any x in X,and satisfy the inequality‖Tx−Ty‖≤a‖Ix−Iy‖+(1−a)max{‖Tx−Ix‖,‖Ty−Iy‖}for all x, y in C, where ...
Brian Fisher, Salvatore Sessa
doaj +1 more source
A fixed point theorem of the alternative, for contractions on a generalized complete metric space
, 1968 1. Summary. The purpose of this note is to prove a "theorem of the alternative" for any "contraction mapping" T on a "generalized complete metric space" X.
J. B. Díaz, Beatriz Margolis
semanticscholar +1 more source
The equivariant Lefschetz fixed point theorem for proper cocompact G-manifolds
, 2001 Suppose one is given a discrete group G, a cocompact proper G-manifold M, and a G-self-map f of M. Then we introduce the equivariant Lefschetz class of f, which is globally defined in terms of cellular chain complexes, and the local equivariant Lefschetz
Lueck, Wolfgang, Rosenberg, Jonathan
core +2 more sources