QK Spaces on the Unit Circle by Jizhen Zhou

“…We obtain a necessary and sufficient condition on K such that QK(∂D)=BMO(∂D), as well as a general criterion on weight functions K1 and K2, K1≤K2, such that QK1(∂D)QK2(∂D). We also prove that a measurable function belongs to QK(∂D) if and only if it is Möbius bounded in the Sobolev space LK2(∂D). …”
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Unit-circle-preserving mappings by Soon-Mo Jung, Byungbae Kim

“…We prove that if a one-to-one mapping f:ℝn→ℝn(n≥2) preserves the unit circles, then f is a linear isometry up to translation.…”
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Nonwandering sets of maps on the circle by Seung Wha Yeom, Kyung Jin Min, Seong Hoon Cho

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Convex functions and the rolling circle criterion by V. Srinivas, O. P. Juneja, G. P. Kapoor

“…Given 0≤R1≤R2≤∞, CVG(R1,R2) denotes the class of normalized convex functions f in the unit disc U, for which ∂f(U) satisfies a Blaschke Rolling Circles Criterion with radii R1 and R2. …”
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Circle of Willis Variants: Fetal PCA by Amir Shaban, Karen C. Albright, Amelia K. Boehme, Sheryl Martin-Schild

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About Nodal Systems for Lagrange Interpolation on the Circle by E. Berriochoa, A. Cachafeiro, J. M. García Amor

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Leptospirosis, melioidosis, and rickettsioses in the vicious circle of neglect. by Tshokey Tshokey, Ablert I Ko, Bart J Currie, Claudia Munoz-Zanzi, Cyrille Goarant, Daniel H Paris, David A B Dance, Direk Limmathurotsakul, Emma Birnie, Eric Bertherat, Gyanendra Gongal, Jackie Benschop, Jelmer Savelkoel, John Stenos, Kartika Saraswati, Matthew T Robinson, Nicholas P J Day, Stephen R Graves, Steven R Belmain, Stuart D Blacksell, Willem J Wiersinga

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Sex-specific anatomical variation of circle of Willis arteries by Phebe J. Groenheide, Iris N. Vos, Robin Bülow, Irene C. van der Schaaf, Birgitta K. Velthuis, Ynte M. Ruigrok

“…Background: Anatomical variations in the circle of Willis (CoW) arteries are common and can affect hemodynamic stress, thereby influencing the risk of cerebrovascular pathology. …”
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Limit-Point/Limit-Circle Results for Equations with Damping by M. Bartušek, John R. Graef

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ASPECTS REGARDING LOCUS IN MECHANICS by Răzvan Bogdan ITU

“…Essentially, locus problems are problems of finding characteristics equivalent to those by which a certain intersection is given, in other words, the equality problem of two intersections. The paper presents aspects regarding the locus in plane – parallel movement in kinematic mechanics, namely the circle of inflections and the turning back circle. …”
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Static and dynamic assessments of park accessibility and equity across different living circles in shenzhen’s core area by Zhongshan Huang, Qiyue Jia, Shixian Luo, Zhigang Tu, Lei Zhao, Siyuan Li, Zhengyan Lu

Subjects: “…community living circle…”
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On Absolute Continuity of Conjugations between Circle Maps with Break Points by Habibulla Akhadkulov, Mohd Salmi Md Noorani

“…Let T1 and T2 be piecewise smooth circle homeomorphisms with break points and identical irrational rotation numbers. …”
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Advanced ellipse overlap computation based on segment area of circles by Minhye Kim, Yongkuk Kim, Giphil Cho

“…Given two ellipses of either the standard or general types, a quaternary equation can be derived for the intersection points of the two ellipses. …”
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Wardowski Type Contractions and the Fixed-Circle Problem on S-Metric Spaces by Nabil Mlaiki, Ufuk Çelik, Nihal Taş, Nihal Yilmaz Özgür, Aiman Mukheimer

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R-Linear Conjugation Problem on the Unit Circle in the Parabolic Case by S. V. Rogosin, L. P. Primachuk, M. V. Dubatovskaya

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The Existence of Positive Solution of a Nonlinear Problem on Unit Circle by Na Wei, Yanli Zhou, Xiangyu Ge

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The 500-year Cultural & Economic Trajectory of Tobacco: A Circle Complete by Christopher A. Jones, Amanda Wassel, William Mierse, E. Scott Sills

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Nonself-Adjoint Second-Order Difference Operators in Limit-Circle Cases by Bilender P. Allahverdiev

“…We consider the maximal dissipative second-order difference (or discrete Sturm-Liouville) operators acting in the Hilbert space ℓ2𝑤(ℤ) (ℤ:={0,±1,±2,…}), that is, the extensions of a minimal symmetric operator with defect index (2,2) (in the Weyl-Hamburger limit-circle cases at ±∞). …”
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To gather is to heal: Women’s Mental Health Circles in rural Chiapas, Mexico by Ana Cecilia Ortega, Margaret Buckner

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Strictly Decreasing Solutions of a Class of Iterative Equations on the Unit Circle by Wei Song, Sheng Chen, Xunbo Yin

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