How can we define L-Infinity Norm for the multi-variable function?
For $$ \|f(t,x_1,\cdots,x_n)\|_\infty = ?$$ where $f \in C^\infty ([0,\infty) \times \mathbb R^n) $.
How can we define L-Infinity Norm for the multi-variable function?
For $$ \|f(t,x_1,\cdots,x_n)\|_\infty = ?$$ where $f \in C^\infty ([0,\infty) \times \mathbb R^n) $.