Laplacian of the value function

[Jeffrey Eiyike]

Homework Statement

Laplacian of the function V(x,t)=-1/2* x' D x + h' *x + D

Homework Equations

The Attempt at a Solution

is equals D.

 

[Orodruin]

Your answer is wrong, please explain your reasoning. Note that D is a matrix and the Laplacian of a scalar function should be a scalar.

Edit: Note that I am assuming your x is a vector and x' its transpose. You really have not made this point clear in your post.

 

[Jeffrey Eiyike]

Laplacian of the function V(x,t)=-1/2* x' D x + h' *x - Z

x is a vector D is a matrix which depends on time h is a vector which depends on time Z is also a vector depends on time

 

[Jeffrey Eiyike]

D is a square matrix..

 

[Ray Vickson]

Homework Statement

Laplacian of the function V(x,t)=-1/2* x' D x + h' *x + D

Homework Equations

The Attempt at a Solution

is equals D.

PF rules require you to show your work. What is preventing you from just going ahead and actually computing the Laplacian?