Beatrice
Reputation
258
Top tag
Next privilege 500 Rep.
Access review queues
 Nov 13 asked What's the most straight-forward way to prove Walras's Law? Nov 13 asked How to show that Roy's identity holds in the case of a monotonic increasing transformation? Oct 30 comment Given $AX = XD$, where $D$ is a diagonal matrix and $A$ is idempotent, is $D$ idempotent as well? yup, i got the answer i was looking for, thanks! Oct 30 accepted Given $AX = XD$, where $D$ is a diagonal matrix and $A$ is idempotent, is $D$ idempotent as well? Oct 30 accepted When is a positive semi-definite matrix A positive definite? Oct 30 comment Given $AX = XD$, where $D$ is a diagonal matrix and $A$ is idempotent, is $D$ idempotent as well? no it's not hw, just something i was wondering about Oct 29 asked Given $AX = XD$, where $D$ is a diagonal matrix and $A$ is idempotent, is $D$ idempotent as well? Oct 12 asked When is a positive semi-definite matrix A positive definite? Jun 6 accepted Can a function be homothetic if it's not homogeneous? May 26 asked Can a function be homothetic if it's not homogeneous? Apr 13 accepted What's the opposite of a cross product? Apr 12 asked What's the opposite of a cross product? Apr 9 awarded Supporter Apr 9 comment Payoffs question I agree that the question is unrealistic as well. Thanks for your answer. Apr 9 accepted Payoffs question Apr 1 comment Payoffs question Strangely, the answer given by my professor is f= 0.75 while I thought that the answer should be f = 0 like all your answers suggested. I'm gonna think it over again. Apr 1 asked Payoffs question Mar 29 awarded Autobiographer Mar 29 awarded Citizen Patrol Mar 25 accepted How is the column space of a matrix A orthogonal to its nullspace?