Results 31 to 40 of about 38,889 (311)

On Volterra composition operators from Bergman-type space to Bloch-type space [PDF]

, 2011
summary:Let $\varphi $ be an analytic self-mapping of $\mathbb {D}$ and $g$ an analytic function on $\mathbb {D}$. In this paper we characterize the bounded and compact Volterra composition operators from the Bergman-type space to the Bloch-type ...
Jiang, Zhi Jie
core   +1 more source

Universal Sequences of Composition Operators

The Journal of Geometric Analysis, 2023
Let $G$ and $Ω$ be two planar domains. We give necessary and sufficient conditions on a sequence $(ϕ_n)$ of eventually injective holomorphic mappings from $G$ to $Ω$ for the existence of a function $f\in H(Ω)$ whose orbit under the composition by $(ϕ_n)$ is dense in $H(G)$. This extends a result of the same nature obtained by Grosse-Erdmann and Mortini
Charpentier, S., Mouze, Augustin
openaire   +2 more sources

Infection Control Practices for Vascular Access Management in Hemodialysis: Results From a Nationwide Survey of Japanese National University Hospitals

Therapeutic Apheresis and Dialysis, EarlyView.
ABSTRACT Introduction Bloodstream infections due to repeated vascular access (VA) puncture and circuit connections remain major concerns in hemodialysis. Therefore, we examined current practices for glove, disinfectant, and personal protective equipment (PPE) use according to VA type in national university hospitals in Japan.
Aiko Yamada, Makoto Harada, Tadahiko Kikugawa, Takeshi Nakata, Koji Hashimoto, Tsuneo Konta, Yuji Kamijo   +6 more
wiley   +1 more source

Exceptional sets and Hilbert–Schmidt composition operators

, 2003
It is shown that an analytic map ϕ of the unit disk into itself inducing a Hilbert–Schmidt composition operator on the Dirichlet space has the property that the set Eϕ={eiθ∈∂D:|ϕ(eiθ)|=1} has zero logarithmic capacity. We also show that this is no longer
González, Marı́a J., González, María J., Gallardo Gutiérrez, Eva Antonia, Gallardo-Gutiérrez, Eva A.   +3 more
core   +1 more source

Therapeutic Apheresis in Nigeria: A Multi‐Center Summary of Abstracts From the Inaugural Nigerian Society for Apheresis Scientific Meeting

Therapeutic Apheresis and Dialysis, EarlyView.
ABSTRACT Background Therapeutic apheresis (TA) is an established treatment modality for hematologic, neurologic, and immunologic disorders, yet access remains severely limited in sub‐Saharan Africa. Donor apheresis, including platelet apheresis collection from healthy donors, represents an important complementary modality supporting blood product ...
Nosa Bazuaye, Chimezie Okwuonu, Evelyn Idam, Folasade Adelekan‐Popoola, Shakirat Gold‐Olufadi, Olufunto Olufela Kalejaiye, Abdullateef Ogala, Zinnah Aloziem, Blossom Amamchukwu, Patience Elimia, Mkpoikanabasi Obot‐Obot, Henry Mbakwe, Praises Maduagwuna, Olatunji Akinrodoye, Chiamaka Anyanwu, Benjamin Anyanwu, Adedamola Akinsiku, Oluwatoyin A. Akinsiku, Muzamil O. Hassan, Fatiu A. Arogundade, Olalekan E. Ojo, Homayemem Weli, Jesupelumi Adenihun, Aderemi Adelaja, Ebun Bamgboye, Olalekan Olatise, Ade E. Faponle, Ayoola Odeyemi, Michael Muoka, Stephen Asaolu, Qudrat Busari, Blessing Dawudu, Michael Naiyeju, Rasheed A. Balogun   +33 more
wiley   +1 more source

The Composition operator on hardy space H2 Induced by ?(z)=sz+t where , and

مجلة بغداد للعلوم, 2010
We study in this paper the composition operator of induced by the function ?(z)=sz+t where , and We characterize the normal composition operator C? on Hardy space H2 and other related classes of operators.
Baghdad Science Journal
doaj   +1 more source

Centered weighted composition operators via measure theory [PDF]

Mathematica Bohemica, 2018
We describe the centered weighted composition operators on $L^2(\Sigma)$ in terms of their defining symbols. Our characterizations extend Embry-Wardrop-Lambert's theorem on centered composition operators.
Mohammad Reza Jabbarzadeh, Mehri Jafari Bakhshkandi   +1 more
doaj   +1 more source

Essential spectra of quasi-parabolic composition operators on Hardy spaces of the Poly-disc

, 2013
In this paper we study the essential spectra of a class of composition operators on the Hilbert-Hardy space of the hi-disc which is called "quasi-parabolic" and whose one variable analogue was studied in [2].
Uğur Gül, Gul, Ugur
core   +1 more source

Composition operators on Musielak-Orlicz spaces of Bochner type [PDF]

, 2004
summary:The invertible, closed range, compact, Fredholm and isometric composition operators on Musielak-Orlicz spaces of Bochner type are characterized in the ...
Hudzik, Henryk,, Cui, Yunan, Sharma, Sunil K., Cui, Yunan,, Maligranda, Lech,, Maligranda, Lech, Hudzik, Henryk, Kumar, Romesh,, Kumar, Romesh, Raj, Kuldip   +9 more
core   +1 more source

Reciprocal control of viral infection and phosphoinositide dynamics

FEBS Letters, EarlyView.
Phosphoinositides, although scarce, regulate key cellular processes, including membrane dynamics and signaling. Viruses exploit these lipids to support their entry, replication, assembly, and egress. The central role of phosphoinositides in infection highlights phosphoinositide metabolism as a promising antiviral target.
Marie Déborah Bancilhon, Bruno Mesmin
wiley   +1 more source