Abstract: Within the framework of finite-horizon optimal control problems involving nonlinear, input-affine dynamics, a connection between the costate variable and generating functions of the ...

Abstract: Direct positron emission tomography (PET) image reconstruction methods using convolutional neural networks (CNNs) have attracted increasing attention for the next generation of PET image ...

The negative number is mostly due to a drop in entries, the report said. The U.S. experienced negative net migration in 2025 for the first time in at least half a century as a result of the Trump ...