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Functional differential equations close to differential equations [PDF]

Bulletin of the American Mathematical Society, 1966
when the lag function r(t) is nearly constant for large /, and has also asked for conditions on the function r under which all solutions approach zero as t—» oo. The purpose of this announcement is to initiate a study of various stability and oscillation problems for equations with perturbed lag functions, and to suggest that a modification of the ...
openaire   +2 more sources

Motion of Submerged Body in a Frozen Channel with Compressed Porous Ice

Applied Sciences
The problem of submerged body motion in a frozen channel is considered. The fluid in the channel is assumed to be inviscid and incompressible. Fluid flow is the potential. The ice cover has non-uniform compression along the principal coordinates.
Tatyana Sibiryakova, Kristina Naydenova, Kirill Serykh, Tatyana Khabakhpasheva   +3 more
doaj   +1 more source

Solution to Initial-Boundary Value Problem for the Heat Conductivity Equation With a Discontinuous Coefficient and General Conjugation Conditions

International Journal of Mathematics and Mathematical Sciences
A solution to the initial-boundary value problem for the heat equation with a discontinuous coefficient and a general conjugation condition is verified using the Fourier method.
Umbetkul Кoilyshov, Makhmud Sadybekov, Кulnyar Beisenbayeva   +2 more
doaj   +1 more source

Navier–Stokes Equation in a Cone with Cross-Sections in the Form of 3D Spheres, Depending on Time, and the Corresponding Basis

Mathematics
The work establishes the unique solvability of a boundary value problem for a 3D linearized system of Navier–Stokes equations in a degenerate domain represented by a cone.
Muvasharkhan Jenaliyev, Akerke Serik, Madi Yergaliyev   +2 more
doaj   +1 more source

Central Nervous System Tumors Among Infants in Canada: A Report From CYP‐C

Pediatric Blood &Cancer, EarlyView.
ABSTRACT Background Central nervous system (CNS) tumors in infants are rare, pose unique clinical challenges, and lack large‐scale evidence‐based data to guide management. This study seeks to describe CNS tumors in Canadian infants and to compare their outcomes with those of older children.
Samuel Sassine, Hallie Coltin, Sylvia Cheng, Lucie Lafay‐Cousin, Vanan Issai Magimairajan, Craig Erker, Stéphanie Vairy, Lynette Bowes, Adam Fleming, Donna Johnston, Sarah McKillop, Roona Sinha, Julie Bennett, Christina Coleman, Laura Wheaton, Shayna Zelcer, Samuele Renzi, Thai Hoa Tran   +17 more
wiley   +1 more source

Stability, Boundedness, and Existence of Periodic Solutions to Certain Third-Order Delay Differential Equations with Multiple Deviating Arguments

International Journal of Differential Equations, 2015
The behaviour of solutions for certain third-order nonlinear differential equations with multiple deviating arguments is considered. By employing Lyapunov’s second method, a complete Lyapunov functional is constructed and used to establish sufficient ...
A. T. Ademola, B. S. Ogundare, M. O. Ogundiran, O. A. Adesina   +3 more
doaj   +1 more source

Impact of Radiation Therapy on Physical and Psychosocial Health of Adolescents and Young Adults: A Joint Report From the Children's Oncology Group AYA and Radiation Oncology Committees

Pediatric Blood &Cancer, EarlyView.
ABSTRACT Rates of cancer among adolescents and young adults (AYA), age 15–39 years, are increasing. Consequently, radiation oncologists are treating more AYAs who have diagnoses spanning both pediatric and adult practices. Compared to pediatric and older adult patients, AYAs face a unique set of challenges.
Hesham Elhalawani, Rachel K. Peterson, Avani D. Rao, Laurie J. McKenzie, Ahmed Magdy Elmotayam, Leslie Chang, Michael Roth, Susan L. McGovern   +7 more
wiley   +1 more source

Periodicity, Stability, and Boundedness of Solutions to Certain Second Order Delay Differential Equations

International Journal of Differential Equations, 2016
The behaviour of solutions to certain second order nonlinear delay differential equations with variable deviating arguments is discussed. The main procedure lies in the properties of a complete Lyapunov functional which is used to obtain suitable ...
A. T. Ademola, B. S. Ogundare, M. O. Ogundiran, O. A. Adesina   +3 more
doaj   +1 more source

Riccati Differential Equation for Hypergeometric Differential Equation

Rendiconti del Seminario Matematico della Università di Padova, 2012
In this paper, we study the solutions of Riccati differential equation corresponding to p -adic differential equations which are solvable on the generic disc.
openaire   +2 more sources

Oscillatory Properties of Fourth-Order Advanced Differential Equations

, 2023
This paper presents a study on the oscillatory behavior of solutions to fourth-order advanced differential equations involving p-Laplacian-like operator.
Ali Hasan Ali, Almutairi, Alanoud, Iambor, Loredana Florentina, Alanoud Almutairi, Loredana Florentina Iambor, Bazighifan, Omar, Omar Bazighifan, Ali, Ali Hasan   +7 more
core   +1 more source