crf

1,111 reputation

113

bio	website
	location
	age
visits	member for	1 year, 7 months
	seen	Apr 22 at 22:32
stats	profile views	110

	1,111 reputation	bio	website		visits	member for	1 year, 7 months
113 badges		location			seen	Apr 22 at 22:32

summary answers questions tags badges favorites bounties reputation activity

310 Actions

suggestions reviews revisions comments badges posts accepts all

Sep 17	comment	How to prove that there exist a concave function and $\gamma\in[0,1]$ and some other numbers which satisfy an inequality Ahh, perfect. It took me a couple of minutes to see how $(F(y)−F(x))/(y−x)\geq (F(w)−F(z))(w−z)$ would help but I got it. Thanks so much!
Sep 17	comment	How to prove that there exist a concave function and $\gamma\in[0,1]$ and some other numbers which satisfy an inequality @Cristian Good point. This inequality came from some manipulations on another inequality in which there is no $1/(1-\gamma)$ term, so I'll need to specify that this is only in the case where $\gamma<1$. Thanks! EDIT actually I realize now that I'm not making the claim for every $\gamma\in[0,1]$ —I'm just saying that some such $\gamma$ exists. So it's perfectly fine to let $\gamma\in (0,1)$. It just happens to never hold for $\gamma =1$ which makes quite nice sense in the model.
Sep 17	comment	How to prove that there exist a concave function and $\gamma\in[0,1]$ and some other numbers which satisfy an inequality well $\gamma$ is meant to be a probability so $\gamma=1$ would be kind of a degenerate case
Sep 17	revised	How to prove that there exist a concave function and $\gamma\in[0,1]$ and some other numbers which satisfy an inequality updated my progress
Sep 17	asked	How to prove that there exist a concave function and $\gamma\in[0,1]$ and some other numbers which satisfy an inequality
Sep 14	comment	Probability question with interarrival times @Sasha You're confusing "chicken" and "hen"
Sep 14	comment	Is it possible to iterate through an infinite set? @Tim Are you thinking of things like mathematical induction, where we show that, where P(n) is a proposition about the number n, if P(1) is true and we show that P(k) implies P(k+1), then we've shown that P(n) holds for every n in \mathbb{N}? There is a sense in which that sort of a proof invokes the idea of iteration over an infinite set.
Sep 12	revised	how many items can i fit in my box edited tags
Sep 12	comment	how many items can i fit in my box Three questions: (1) is 38mm the radius? (2) what have you tried so far? (3) is this a homework problem? I also took off the measure-theory tag since that wasn't the right way to classify this problem.
Sep 12	comment	Interesting or non-obvious finite subsets of the natural numbers This is a good example of a conjecture for which the "obviously infinite test" fails to be conclusive, but I'm looking for a finite subset where the "obviously infinite test" produces the wrong answer.
Sep 12	accepted	From which areas of mathematics does consumer theory in microeconomics spawn?
Sep 12	asked	Interesting or non-obvious finite subsets of the natural numbers
Sep 11	revised	Does ((2^2)^2)^2… = 1 or 0? added 44 characters in body
Sep 11	answered	Does ((2^2)^2)^2… = 1 or 0?
Sep 7	accepted	Is the “field” I learned about in analysis different from the “field” I learned about in econometrics?
Sep 7	awarded	Organizer
Sep 7	revised	Is the “field” I learned about in analysis different from the “field” I learned about in econometrics? deleted 2 characters in body
Sep 7	revised	Is the “field” I learned about in analysis different from the “field” I learned about in econometrics? added 13 characters in body
Sep 6	asked	Is the “field” I learned about in analysis different from the “field” I learned about in econometrics?
Sep 6	accepted	Help understanding $e^{it}=\cos t+i\sin t$ by way of matrices and vector fields