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From Computational Complexity

Should I tell HS students that if they do well I'll write them a letter OR do I want them to ...

I teach a 3-week intense course for HS students on cryptography during the summer. Some of the students are very good, interested, and working hard. I also give...

From Computational Complexity

Did you do research when you were an undergrad? Well.. it was a different time.

Dan is a high school student who has worked with me and is now an ugrad at College Park DAN: Bill, did you do research when you were in high school? BILL: No...

From Computational Complexity

And the winner is... Harambe

Tomorow is the Election for Prez of the USA! This post is non-partisan but, in the interest of full disclosure, I state my politics: I will be voting for Hillary...

From Computational Complexity

My chair wants me to post about.. Mohammad Haj wants me to post about.. I want to post about...

Maryland is looking to hire lecturers and my chai  Samir  wants me to post it on my blog. I think he overestimates the power of the blog, however, here is the link...

From Computational Complexity

Exaggeration is one thing but this is....

This website is about the history of math and lists famous mathematicians. The ones from the 20th century are biased towards logic, but you should go there yourself...

From Computational Complexity

This university does not discriminate based on....

I recently came across the following (I delete the name of the school) and also add my own comments in caps as they relate to UMCP hiring of professors. X-University...

From Computational Complexity

Ideal courses for a comp sci dept/I'm glad we don't do it

I once heard it said: In our data structures course we read Knuth and ignore the proofs In our algorithms course we read Knuth and ignore the code. And indeed...

From Computational Complexity

A Second Order Statement true in (R,+) but not (Q,+)

In my last post I asked Is there a first order statement true in (R,+) but false in (Q,+) Is there a second order statement true in (R,+) but false in (Q,+) ...

From Computational Complexity

Give a second order statement true in (R,+) but false in (Q,+) or show there isn't one

Here is a logic question I will ask today and answer next week. Feel free to leave comments with the answer- you may come up with a different proof than me and...

From Computational Complexity

I have consulted four times. Really!

Those who know me know that I work on stuff that is not readily applied. Or perhaps not applied at all. Certainly my current state of knowledge does seem like it...

From Computational Complexity

Chrisitan Comment on the Jesus Wife Thing misses the important point

In 2012 a Professor of Divisinity at Harvard, Karen King, announced that she had a fragment that seemed to indicate that Jesus had a wife. It was later found to...

From Computational Complexity

Is the examiner being pedantic? Whats really going on here?

The following are two real conversations.  For each one: (1) Is the examiner correct?, and (2) Where and when do you think this conversation took place? I give...

From Computational Complexity

A Game Theory Conference! That sounds like fun!

Bill: Lance just came back from Games, a conference on Game Theory. Darling: That sound like fun! From what you tell me there is some nice math behind Monopoly...

From Computational Complexity

The College Issues that are talked about/College issues that are important

The following college issues get lots of attention: Admissions-  high school students PLAN to do things JUST to get them into an elite college. For example nobody...

From Computational Complexity

Solution to the Alice-Bob-Box problem.

In my last blog I solved one problem and asked another (when will it end!).  Damien Roberts provided an answer in the comments to the last blog, so kudos to Damien...

From Computational Complexity

Solution to the infinite hat problem/a point/a new problem

In my last post I asked the following question (I've shortened it here but its the same really.) An infinite number of people, labelled 1,2,3,... have hats on ...

From Computational Complexity

An infinite hat problem and later a point

Problem: There are an infinite number of people. They are labelled 1,2,3,... (I am not a number, I am a free man!) There is the Master who I call The Master....

From Computational Complexity

Is determining if a poly over a finite field is 1-1 hard? Sure seems so.

When I teach cryptography  to High School  students I begin with shift and linear  ciphers which are x --> x+s mod 26 (s is a shift, x is a letter of the alphabet...

From Computational Complexity

There is now a Bounded Discrete Envy Free Cake Cutting Protocol!

Lance: Bill, there is a new result on cake cutting that was presented at STOC! Do you want to blog about it? Bill: Do snakes have hips! Does a chicken have lips...

From Computational Complexity

There is now a Bounded Discrete Envy Free Cake Cutting Protocol!

Lance: Bill, there is a new result on cake cutting that was presented at STOC! Do you want to blog about it? Bill: Do snakes have hips! Does a chicken have lips...
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