Good morning!'

@JonasTeuwen Zeilburger?

@FrankScience Errr, yes.

@JonasTeuwen About Gosper-Zeiburger's algorithm?

@FrankScience No, all.

@JonasTeuwen I meant whether he is the inventor of GZ algorithm?

It's Zeilberger, not Zeilburger.

@FrankScience Oh, not, it is Zeilberger. Stop confusing me! 8-).

This afternoon with the derivatives! What is wrong with the notation $\partial_x$?

math.rutgers.edu/~zeilberg

@JonasTeuwen I was wrong, and it's Gosper-Zeilberger's algorithm.

See mathworld

About $\partial_x$: Whatever notation you deal with well is right.

For example, try my problem I mentioned yesterday.

"A Heterosexual Mehler Formula for the Straight Hermite Polynomials (à la Foata)"

@JonasTeuwen LOL what is that?

@PeterTamaroff A paper.

@PeterTamaroff It's AM now in your timezone?

@FrankScience It is 7:21 pm

@JonasTeuwen But what's with the title, isn't it a serious paper?

@PeterTamaroff It is.

@JonasTeuwen What is it about?

@PeterTamaroff Click it.

@JonasTeuwen I'm raeding it, it seems it is about relationships or something of the sort but I don't understand by scannign it what is it they are calculating.

That reminds me of the observation that the Hall Marriage Theorem presupposes mixed-sex marriages, and does not hold if same-sex marriages are allowed.

@MarkDominus physics.SE is so inactive! Darn!

Graph Theory.

It is about orthogonal polynomials.

But then in some quite peculiar language.

@PeterTamaroff Yes, and the quality of the answers there is hit-and-miss. Not like in se.math.