Results 71 to 80 of about 686,674 (292)
A note on a harmonic measure estimate and a conjecture of J. Velling [PDF]
Suppose that finitely many disjoint open arcs have been selected on the unit circle, each of length less than $\pi$. Let $L_0$ be a longest among them. One can treat the unit disk as a hyperbolic plane in the Poincare disk model. From this perspective each arc $L$ of the selected set determines a hyperbolic half-plane bounded by the geodesic curve $I ...
arxiv
Hybrid materials enable high‐performance components but are challenging to process. This study explores an inductive heating concept with spray cooling for steel–aluminum specimens in a two‐step process including friction welding and cup backward extrusion.
Armin Piwek+7 more
wiley +1 more source
Univalence Criteria for Two Integral Operators
We study the univalence conditions for two integral operators to be univalent in the open unit disk. Many known univalence conditions are written to prove our main results.
Laura Filofteia Stanciu, Daniel Breaz
doaj +1 more source
On the symmetric group action on rigid disks on a strip [PDF]
In this paper we decompose the rational homology of the ordered configuration space of $p$ open unit-diameter disks on the infinite strip of width $2$ as a direct sum of induced $S_{n}$-representations. Alpert proved that the $k^{\text{th}}$-integral homology of the ordered configuration space of $n$ open unit-diameter disks on the infinite strip of ...
arxiv
This article presents the development of Fe‐Mn‐Zn nanocrystalline alloys (0–9 wt% Zn) by mechanical alloying and subsequently hot pressing. Their microstructure, density, hardness, wear resistance, corrosion behavior, and antibacterial properties are systematically examined.
Ilker Emin Dag+3 more
wiley +1 more source
Some characteristic properties of analytic functions
In this paper, we consider a class L(λ, μ; ϕ) of analytic functions f defined in the open unit disk U satisfying the subordination condition ...
Raina R. K.+2 more
doaj +1 more source
Boundary asymptotic expansions of analytic self-mappings of the unit disk
We present necessary and sufficient conditions for the existence and for the uniqueness of an analytic self-mapping of the open unit disk having prescribed non-tangential boundary asymptotics at finitely many preassigned boundary points.
V. Bolotnikov, M. Elin, D. Shoikhet
semanticscholar +1 more source
Handel's fixed point theorem revisited
Michael Handel proved in [7] the existence of a fixed point for an orientation preserving homeomorphism of the open unit disk that can be extended to the closed disk, provided that it has points whose orbits form an oriented cycle of links at infinity ...
Brown+4 more
core +2 more sources
Laboratory protocols for producing thin‐film pH electrodes for sterilized single‐use technologies have been successfully developed into a semiautomated workflow, with higher throughput and precision of membrane thickness. Accuracies are within 0.05 pH units versus ground truth, and uncertainty analysis reveals the largest sources of error to be derived
Bingyuan Zhao+4 more
wiley +1 more source
Stability of Model Predictive Control with Soft Constraints [PDF]
We derive stability conditions for Model Predictive Control (MPC) with hard constraints on the inputs and "soft" constraints on the outputs for an infinitely long output horizon. We show that with state feedback MPC is globally asymptotically stabilizing
Morari, M., Zheng, A.
core +1 more source