Results 41 to 50 of about 9,486 (287)

Separability of the third-order differential operator given on the whole plane

Қарағанды университетінің хабаршысы. Математика сериясы, 2022
In this paper, in the space L2(R2), we study a third-order differential operator with continuous coefficients in R (-∞ , +∞). Here, these coefficients can be unlimited functions at infinity.
A.O. Suleimbekova
doaj   +1 more source

Mixed Problem for a Homogeneous Wave Equation with a Nonzero Initial Velocity and a Summable Potential [PDF]

Известия Саратовского университета. Новая серия: Математика. Механика. Информатика, 2020
For a mixed problem defined by a wave equation with a summable potential equal-order boundary conditions with a derivative and a zero initial position, the properties of the formal solution by the Fourier method are investigated depending on the ...
Kurdyumov, Vitalii Pavlovich, Khromov, Avgust Petrovich, Khalova, Victoria Anatol'evna   +2 more
doaj   +1 more source

A study of resolvent set for a class of band operators with matrix elements

Concrete Operators, 2016
For operators generated by a certain class of infinite three-diagonal matrices with matrix elements we establish a characterization of the resolvent set in terms of polynomial solutions of the underlying second order finite-difference equations.
Osipov Andrey
doaj   +1 more source

Infant Embryonal CNS Tumors: Molecular Insights and Treatment Considerations for Contemporary Pediatric Neuro‐Oncology

Pediatric Blood &Cancer, EarlyView.
ABSTRACT Background Embryonal tumors comprise the majority of malignant central nervous system (CNS) neoplasms diagnosed in children under 3 years of age. Compared with their counterparts in older children, these tumors exhibit distinct molecular biology and a more aggressive clinical phenotype, while their management is complicated by the heightened ...
Sudarshawn Damodharan, Mariah Wright‐Nadkarni, Mohamed S. Abdelbaki, Girish Dhall   +3 more
wiley   +1 more source

Resolvable Ambiguity

CoRR, 2019
A common standpoint when designing the syntax of programming languages is that the grammar definition has to be unambiguous. However, requiring up front unambiguous grammars can force language designers to make more or less arbitrary choices to disambiguate the language.
Viktor Palmkvist, Elias Castegren, Philipp Haller, David Broman   +3 more
openaire   +3 more sources

Ewing Sarcoma in Infants and Children Under 2 Years of Age: A French Retrospective Study

Pediatric Blood &Cancer, EarlyView.
ABSTRACT Ewing sarcoma, the second most common primary bone cancer in children, requires intensive treatment that may lead to significant long‐term sequelae, particularly in infants. We retrospectively analyzed data from 1621 French patients treated between 1988 and 2015 within the EW88/93/97 or EE99 trials, focusing on 17 infants diagnosed before 24 ...
Elodie Verdier, Nathalie Cozic, Marie‐Dominique Tabone, Gaelle Pierron, Perrine Marec‐Berard, Sarah Winter, Gabriel Revon‐Rivière, Cyril Lervat, Dominique Plantaz, Marie‐Pierre Castex, Gregory Guimard, Estelle Thebaud, Stephanie Proust, Laure Saumet, Natacha Entz‐Werle, Sophie Taque, Cécile Vérité, Marta Jimenez, Nathalie Gaspar   +18 more
wiley   +1 more source

Provider and Parent Perspectives on Prioritizing the “Asking and Monitoring” Pediatric Cancer Psychosocial Standards of Care

Pediatric Blood &Cancer, EarlyView.
ABSTRACT Background The Standards for Psychosocial Care for Children with Cancer and Their Families (“Standards”) are evidence‐based guidelines for psychosocial care in pediatric oncology. Care related to the three “Asking and Monitoring” Standards—Assessment of Psychosocial Needs, Assessment of Financial Needs, and Monitoring Neurocognitive Problems ...
Julia B. Tager, Natalie Koskela‐Staples, Emily M. Pariseau, Michele Scialla, Kimberly Buff, Lori Wiener, Victoria Sardi Brown, Anne E. Kazak, Kimberly S. Canter   +8 more
wiley   +1 more source

Entanglement of a chiral scalar on the torus

Journal of High Energy Physics
We compute the entanglement entropy of an interval for a chiral scalar on a circle at an arbitrary temperature. We use the resolvent method, which involves expressing the entropy in terms of the resolvent of a certain operator, and we compute that ...
Nicolás Abate, David Blanco, Alan Garbarz, Mateo Koifman, Guillem Pérez-Nadal   +4 more
doaj   +1 more source

Iterative Methods for Computing the Resolvent of Composed Operators in Hilbert Spaces

Mathematics, 2019
The resolvent is a fundamental concept in studying various operator splitting algorithms. In this paper, we investigate the problem of computing the resolvent of compositions of operators with bounded linear operators.
Yixuan Yang, Yuchao Tang, Chuanxi Zhu
doaj   +1 more source

Approximating Functions of Positive Compact Operators by Using Bell Polynomials

Axioms, 2020
After recalling the most important properties of the Bell polynomials, we show how to approximate a positive compact operator by a suitable matrix. Then, we derive a representation formula for functions of the obtained matrix, which can be considered as ...
Diego Caratelli, Pierpaolo Natalini, Paolo Emilio Ricci   +2 more
doaj   +1 more source