Results 41 to 50 of about 4,458,478 (284)

Classical solution for initial–boundary value problem for wave equation with integral boundary condition

Mathematical Modelling and Analysis, 2012
The unique existence of classical solution of initial–boundary value problem for wave equation with a special integral boundary condition is proved in the work. Classical solution of the problem in analytical form is also found in the article.
Victor Korzyuk, Victor Erofeenko, Julia Sheika   +2 more
doaj   +1 more source

Boundary conditions: The path integral approach [PDF]

Journal of Physics: Conference Series, 2007
The path integral approach to quantum mechanics requires a substantial generalisation to describe the dynamics of systems confined to bounded domains. Non-local boundary conditions can be introduced in Feynman's approach by means of boundary amplitude distributions and complex phases to describe the quantum dynamics in terms of the classical ...
Asorey, M., Clemente-Gallardo, J., Munoz-Castaneda, J. M.   +2 more
openaire   +2 more sources

Condition number estimates for combined potential boundary integral operators in acoustic scattering [PDF]

, 2009
We study the classical combined field integral equation formulations for time-harmonic acoustic scattering by a sound soft bounded obstacle, namely the indirect formulation due to Brakhage-Werner/Leis/Panic, and the direct formulation associated with the
Chandler-Wilde, Simon Neil, Stephen Langdon, Simon N. Chandler-Wilde, Graham, Ivan G, Langdon, Stephen, Lindner, Marko, Ivan G. Graham, Graham, Ivan G., Marko Lindner, Chandler-Wilde, Simon N.   +9 more
core   +1 more source

Hilfer fractional differential inclusions with Erdélyi–Kober fractional integral boundary condition

Advances in Difference Equations, 2021
In this article, we debate the existence of solutions for a nonlinear Hilfer fractional differential inclusion with nonlocal Erdélyi–Kober fractional integral boundary conditions (FIBC).
Adel Lachouri, Mohammed S. Abdo, Abdelouaheb Ardjouni, Bahaaeldin Abdalla, Thabet Abdeljawad   +4 more
doaj   +1 more source

Path integrals and boundary conditions

, 2006
The path integral approach to quantum mechanics provides a method of quantization of dynamical systems directly from the Lagrange formalism. In field theory the method presents some advantages over Hamiltonian quantization. The Lagrange formalism preserves relativistic covariance which makes the Feynman method very convenient to achieve the ...
Asorey, M., Ibort, A., Marmo, G.
openaire   +2 more sources

Social Functioning Within the First Years After Pediatric Brain Tumor Diagnosis and the Relationship With Family Psychosocial Risk

Pediatric Blood &Cancer, EarlyView.
ABSTRACT Background Survivors of pediatric brain tumors (PBTs) can experience long‐term social difficulties, impacting quality of life. Beyond medical and environmental factors, family psychosocial risk may play a role in social outcomes by shaping the caregiving environment and may provide intervention options.
Renske H. Houben, Marisa H. Huisman, Martha A. Grootenhuis, Femke K. Aarsen, Marita Partanen   +4 more
wiley   +1 more source

Applications of the generalised Dirichlet integral inequality to the Neumann problem with fast-growing continuous data

Journal of Inequalities and Applications, 2016
By using the generalised Dirichlet integral inequality with continuous functions on the boundary of the upper half-space, we prove new types of solutions for the Neumann problem with fast-growing continuous data on the boundary.
Wei Li, Muhammad Aslam Zaprawa
doaj   +1 more source

Referral Patterns and Diagnostic Timeliness in Pediatric Cancer: A Hospital‐Based Study in Indonesia

Pediatric Blood &Cancer, EarlyView.
ABSTRACT Background Timely diagnosis and treatment are critical for improving survival among children with cancer. In low‐ and middle‐income countries (LMICs), delays are common and may be influenced by fragmented referral pathways and diagnostic limitations.
Nur Melani Sari, Regina Hadi Putri, Fatimah Assyifa, Judith Spijkerman, Gertjan Johannes Kaspers, Susi Susanah   +5 more
wiley   +1 more source

Existence of solutions of coupled φ-Hilfer fractional differential systems with integral boundary conditions [PDF]

Journal of Hebei University of Science and Technology
In order to expand the relevant theory of fractional differential equation systems, a class of coupled φ-Hilfer fractional differential systems with integral boundary conditions was studied.
Bei ZHANG, Huanmin SI, Weihua JIANG, Chunjing GUO, Kun CHEN   +4 more
doaj   +1 more source

Comparative Evaluation of Hemodiafiltration, Hemoperfusion, and Standard Hemodialysis on Efficacy, Inflammatory Control, Dialysis Adequacy, and Safety in End‐Stage Renal Disease: A Prospective Observational Study

Therapeutic Apheresis and Dialysis, EarlyView.
ABSTRACT Background Chronic micro‐inflammation in patients with end‐stage renal disease (ESRD) is a significant driver of cardiovascular complications and diminished quality of life. While standard hemodialysis (SHD) effectively manages small‐molecule clearance, its ability to remove medium‐to‐large uremic toxins—the primary catalysts of systemic ...
Hongwei Zuo, Weisi Dai, Jie Mao, Mei Ye, Xingshan Lu, Xiaocui Zhang   +5 more
wiley   +1 more source