## Perfil

Fecha de registro: 4 jun 2022

###### Sobre...

G-Force 3D Screensaver Features: - Create your own G-Force 3D Screensaver - G-Force 3D Animated Screensaver - G-Force 3D Screensaver Wallpaper - G-Force 3D Screensaver Wallpaper - G-Force 3D Screensaver Animated Screensaver - G-Force 3D Screensaver Animated Screensaver Wallpaper - G-Force 3D Screensaver Desktop Wallpaper How to Download: 1. Right click on the downloaded file and select "Extract here". 2. Move the extracted file to your desktop. 3. Double click on "G-Force_installer.bat" to install the screensaver on your computer. 4. Select the "G-Force Screensaver" in the screensaver list. 5. Click on the "Start" button to start your new G-Force Screensaver.Q: Why a classical solution must blow up In the book of G. Rein on numerical solution of pdes (pde of parabolic type) and its applications, chapter 6.5, page 251, the following statement is given. First, the definition of the classical solution follows. Here is the spatial part, is the initial data, and is the source term. The first condition of the classical solution is that is bounded in the following sense: This condition implies that as is sufficiently large, My question is: Why it must imply that? what does this mean? Thank you. A: Let $y_n$ be a solution of the homogeneous initial-boundary value problem for the pdes $$\partial_{t}u_n - abla^2 u_n=0\quad \text{ and }\quad u_n(\cdot,0)=0,\quad \text{ and }\quad\partial_{t}u_n(\cdot,0)=f_n(\cdot),$$ then we have that, for all $t>0$,  ||y_n(t)||_2\leq ||y_n(0)||_2\quad\text{ and }\quad ||u_n(t)||_2\leq || a5204a7ec7