Results 41 to 50 of about 1,304,903 (278)

Nevanlinna theory for the difference operator [PDF]

open access: yes, 2005
Certain estimates involving the derivative $f\mapsto f'$ of a meromorphic function play key roles in the construction and applications of classical Nevanlinna theory.
Halburd, R. G., Korhonen, R. J.
core   +4 more sources

Variational finite-difference representation of the kinetic energy operator

open access: yes, 2001
A potential disadvantage of real-space-grid electronic structure methods is the lack of a variational principle and the concomitant increase of total energy with grid refinement.
D. Vanderbilt   +11 more
core   +1 more source

Difference operators on lattices

open access: yesJournal of Algebra and Its Applications, 2023
A differential operator of weight [Formula: see text] is the algebraic abstraction of the difference quotient [Formula: see text], including both the derivation as [Formula: see text] approaches to [Formula: see text] and the difference operator when [Formula: see text].
Aiping Gan, Li Guo
openaire   +2 more sources

Effects of Cancer Treatment on Somatosensory and Nociceptive Processing in Children and Adolescents: A Systematic Review

open access: yesPediatric Blood &Cancer, EarlyView.
ABSTRACT Chemotherapy‐induced peripheral neuropathy remains a major complication in pediatric cancer, with disrupted somatosensory and nociceptive processing being a key aspect. This review synthesizes empirical studies on alterations in somatosensory and nociceptive processing in children and adolescents with cancer.
Julia Schweiger   +4 more
wiley   +1 more source

Spectral analysis of second order quantum difference operator over the sequence space lp (1 < p < ∞)

open access: yesҚарағанды университетінің хабаршысы. Математика сериясы
In this article, we study the spectrum, fine spectrum and boundedness property of second order quantum difference operator ∆2q (0 < q < 1) over the class of sequence lp (1 < p < ∞), the pth summable sequence space.
N. Kalita, A.J. Dutta
doaj   +1 more source

Oscillatory behavior of nonlinear Hilfer fractional difference equations

open access: yesAdvances in Difference Equations, 2021
In this paper, we study the oscillation behavior for higher order nonlinear Hilfer fractional difference equations of the type Δ a α , β y ( x ) + f 1 ( x , y ( x + α ) ) = ω ( x ) + f 2 ( x , y ( x + α ) ) , x ∈ N a + n − α , Δ a k − ( n − γ ) y ( x ) |
Tuğba Yalçın Uzun
doaj   +1 more source

Resonances for Difference Operators

open access: yesJournal of Mathematical Analysis and Applications, 1995
The author shows the existence of resonances for the difference operators \(H\) on \(\ell^2(\mathbb{Z})\), defined by \(D^* D+ V\), where \(D: \varphi(n)\mapsto \varphi(n+ 1)- \varphi(n)\), \(D^*: \varphi(n)\mapsto \varphi(n)- \varphi(n- 1)\), and barrier potential \(V\), multiplication by a real-valued function on \(\mathbb{Z}\), \(\text{supp } V ...
openaire   +1 more source

Carcinomas and Carcinoid Tumors of the Lungs and Bronchi in Children and Adolescents: The EXPeRT Recommendations

open access: yesPediatric Blood &Cancer, EarlyView.
ABSTRACT Primary lung carcinomas and bronchial carcinoid tumors (BC) are very rare malignancies in childhood. While typical BC and mucoepidermoid carcinomas are mostly low‐grade, localized tumors with a more favorable prognosis than in adults, necessitating avoidance of overtreatment, adenocarcinomas of the lung are often diagnosed at advanced disease ...
Michael Abele   +19 more
wiley   +1 more source

Exploring Preferences for a Digital Single‐Session Intervention for Adolescent Siblings of Youth With Cancer

open access: yesPediatric Blood &Cancer, EarlyView.
ABSTRACT Introduction Adolescent siblings of children with cancer are at elevated risk for psychosocial problems. Unfortunately, various barriers such as limited family time and resources, conflicting schedules, and psychosocial staffing constraints at cancer centers hinder sibling access to support.
Christina M. Amaro   +10 more
wiley   +1 more source

Uniqueness Theorems of Difference Operator on Entire Functions

open access: yesDiscrete Dynamics in Nature and Society, 2013
We investigate the uniqueness questions of the difference operator on entire functions and obtain three uniqueness theorems using the idea of weight sharing.
Jie Ding
doaj   +1 more source

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