Results 31 to 40 of about 1,686,290 (330)

On one nonlinear integral boundary value problem

Науковий вісник Ужгородського університету. Серія: Математика і інформатика, 2017
We give a new approach for the investigation of existence and construction of an approximate solutions of nonlinear non-autonomous systems of ordinary differential equations under nonlinear integral boundary conditions.
Я. В. Варга
doaj   +1 more source

Functional parameters of spermatozoa obtained by a new selection device

FEBS Open Bio, EarlyView.
This study compares density gradient centrifugation and the LensHooke CA0™ device for sperm separation. DGC requires multiple steps, specialized equipment, and technical expertise. In contrast, the CA0 device offers key practical and methodological advantages, resulting in a faster, simpler, and more affordable sperm selection method.
Julio C. Chávez, Paulina Torres, Gabriela Carrasquel‐Martínez, María G. Figueroa‐Méndez, Diana Flores, Lina Villar, Israel Maldonado, Marcela B. Trevino, Claudia Treviño   +8 more
wiley   +1 more source

NMDAR‐Antibody Encephalitis Diagnosed With Primary Central Nervous System Lymphoma: A Case Series

Annals of Clinical and Translational Neurology, EarlyView.
ABSTRACT N‐methyl‐D‐aspartate receptor‐antibody encephalitis (NMDAR encephalitis) is one of the most common forms of autoimmune encephalitis, with a paraneoplastic relationship described in approximately 38%. Primary central nervous system lymphoma (PCNSL) is a rare hematologic malignancy that is not often considered as the underlying neoplasm in this ...
Soo Hyun Ahn, Cynthea Prima, Tae Min Kim, Soon‐Tae Lee, Kon Chu   +4 more
wiley   +1 more source

Boundary value problems for hypergenic function vectors

Journal of Inequalities and Applications, 2018
This article mainly studies the boundary value problems for hypergenic function vectors in Clifford analysis. Firstly, some properties of hypergenic quasi-Cauchy type integrals are discussed. Then, by the Schauder fixed point theorem the existence of the
Guiling Zhang, Chong Li, Yonghong Xie
doaj   +1 more source

Light-Front Quantisation as an Initial-Boundary Value Problem

, 1993
In the light front quantisation scheme initial conditions are usually provided on a single lightlike hyperplane. This, however, is insufficient to yield a unique solution of the field equations.
C. Dietmaier, E. Werner, F.G. Friedlander, G. Domokos, G. McCartor, G.'t Hooft, H. Leutwyler, H.C. Pauli, I.M. Gelfand, I.S. Gradshteyn, J. Schwinger, J.D. Bjorken, J.M. Namys?owski, K. Sundermeyer, L. Banyai, L. Faddeev, N.N. Bogolubov, P. Jordan, P.A.M. Dirac, P.A.M. Dirac, P.M. Morse, R. Courant, R. Jackiw, R.A. Neville, R.J. Perry, S. Fubini, S. Schlieder, S. Schweber, S.J. Chang, S.J. Chang, T. Heinzl, T. Heinzl, T. Heinzl, T. Heinzl, T. Myint-U, T. Suzuki   +35 more
core   +1 more source

On a nabla fractional boundary value problem with general boundary conditions

AIMS Mathematics, 2020
In this article, we consider a nabla fractional boundary value problem with general boundary conditions. Brackins & Peterson [5] gave an explicit expression for the corresponding Green’s function.
Jagan Mohan Jonnalagadda
doaj   +1 more source

Data‐driven forecasting of ship motions in waves using machine learning and dynamic mode decomposition

International Journal of Adaptive Control and Signal Processing, EarlyView.
Summary Data‐driven forecasting of ship motions in waves is investigated through feedforward and recurrent neural networks as well as dynamic mode decomposition. The goal is to predict future ship motion variables based on past data collected on the field, using equation‐free approaches.
Matteo Diez, Mauro Gaggero, Andrea Serani   +2 more
wiley   +1 more source

Global search algorithm for optimal control [PDF]

, 1970
Random-search algorithm employs local and global properties to solve two-point boundary value problem in Pontryagin maximum principle for either fixed or variable end-time problems. Mixed boundary value problem is transformed to an initial value problem.
Brocker, D. H., Kavanaugh, W. P., Stewart, E. C.   +2 more
core   +1 more source

Dirichlet boundary value problem for Chern-Simons modified gravity

, 2008
Chern-Simons modified gravity comprises the Einstein-Hilbert action and a higher-derivative interaction containing the Chern-Pontryagin density. We derive the analog of the Gibbons-Hawking-York boundary term required to render the Dirichlet boundary ...
D. Mattingly, Daniel Grumiller, P. L. M. de Maupertuis, Robert Mann, Robert McNees, S. Deser, T. Mariz, W. Fischler   +7 more
core   +1 more source

A Q‐Learning Algorithm to Solve the Two‐Player Zero‐Sum Game Problem for Nonlinear Systems

International Journal of Adaptive Control and Signal Processing, Volume 39, Issue 3, Page 566-581, March 2025.
A Q‐learning algorithm to solve the two‐player zero‐sum game problem for nonlinear systems. ABSTRACT This paper deals with the two‐player zero‐sum game problem, which is a bounded L2$$ {L}_2 $$‐gain robust control problem. Finding an analytical solution to the complex Hamilton‐Jacobi‐Issacs (HJI) equation is a challenging task.
Afreen Islam, Anthony Siming Chen, Guido Herrmann   +2 more
wiley   +1 more source