Results 51 to 60 of about 686,674 (292)

Neighborhoods of certain analytic functions with negative coefficients

open access: yesInternational Journal of Mathematics and Mathematical Sciences, 1996
The object of the present paper is to derive some properties of neighborhoods of analytic functions with negative coefficients in the open unit disk.
Osman Altintas, Shigeyoshi Owa
doaj   +1 more source

What can you draw? [PDF]

open access: yesarXiv, 2020
We address the problem of which planar sets can be drawn with a pencil and eraser. The pencil draws any union of black open unit disks in the plane $\mathbb{R}^2$. The eraser produces any union of white open unit disks. You may switch tools as many times as desired.
arxiv  

True Contraction Decomposition and Almost ETH-Tight Bipartization for Unit-Disk Graphs

open access: yesInternational Symposium on Computational Geometry
We prove a structural theorem for unit-disk graphs, which (roughly) states that given a set \(\mathcal{D}\) of \(n\) unit disks inducing a unit-disk graph \(G_{\mathcal{D}}\) and a number \(p\in[n]\) , one can partition \(\mathcal{D}\) into \(p\) subsets
Sayan Bandyapadhyay   +4 more
semanticscholar   +1 more source

A Seidel-Walsh theorem with linear differential operators [PDF]

open access: yes, 1999
Assume that {Sn}∞1 is a sequence of automorphisms of the open unit disk D and that {Tn}∞1 is a sequence of linear differential operators with constant coefficients, both of them satisfying suitable conditions.
Bernal González, Luis   +1 more
core  

Surface dose analysis and dosimetric comparison of Halcyon versus Truebeam in breast cancer radiotherapy: An OSL dosimetry study

open access: yesJournal of Applied Clinical Medical Physics, EarlyView.
Abstract Purpose Breast cancer is a neoplastic disease with high prevalence among women. Radiotherapy is one of the principal treatment modalities for this disease, but it poses significant challenges. This study aimed to compare and evaluate the technical and dosimetric performance of conventional C‐arm linac systems and a new design, Halcyon, in the ...
Mustafa Çağlar   +8 more
wiley   +1 more source

Partial sums of certain analytic functions

open access: yesInternational Journal of Mathematics and Mathematical Sciences, 2001
The object of the present paper is to consider the starlikeness and convexity of partial sums of certain analytic functions in the open unit disk.
Shigeyoshi Owa
doaj   +1 more source

Unsupervised non‐small cell lung cancer tumor segmentation using cycled generative adversarial network with similarity‐based discriminator

open access: yesJournal of Applied Clinical Medical Physics, EarlyView.
Abstract Background Tumor segmentation is crucial for lung disease diagnosis and treatment. Most existing deep learning‐based automatic segmentation methods rely on manually annotated data for network training. Purpose This study aims to develop an unsupervised tumor segmentation network smic‐GAN by using a similarity‐driven generative adversarial ...
Chengyijue Fang   +2 more
wiley   +1 more source

On starlikeness and close-to-convexity of certain analytic functions

open access: yesInternational Journal of Mathematics and Mathematical Sciences, 2004
Our purpose is to derive some sufficient conditions for starlikeness and close-to-convexity of order α of certain analytic functions in the open unit disk.
Oh Sang Kwon, Nak Eun Cho
doaj   +1 more source

Multiplication Operators on Weighted Zygmund Spaces of the First Cartan Domain

open access: yesAxioms, 2023
Inspired by some recent studies of the multiplication operators on holomorphic function spaces of the classical domains such as the open unit disk, the unit ball and the unit polydisk, the purpose of the present paper is to study just the operators that ...
Zhi-Jie Jiang
doaj   +1 more source

Association Between Metabolic Syndrome and Radiographic Changes in Psoriatic Arthritis: A Cohort Study

open access: yesArthritis Care &Research, EarlyView.
Objective Metabolic syndrome (MetS) is a known comorbidity of psoriatic arthritis (PsA) and is associated with PsA disease activity. We aimed to explore the association between MetS and radiographic features (peripheral and axial) in PsA. Methods We included patients with PsA followed at our prospective observational cohort for the period between 1978 ...
Fadi Kharouf   +6 more
wiley   +1 more source

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