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What do grad students in math do all day?

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Re: What do grad students in math do all day?

#61
post #8

An incredibly accurate depiction of research in any theoretical field, I'd say. Compound that with the fact that during your education you're mostly presented with texts that summarize decades or more of research into a scant few pages as if the people involved had just flowed naturally from one idea to the next, from a problem statement to the incredibly complex idea that unlocks the proof. When it's finally your tu…

Agreed. After doing 2 years I left with a masters and never looked back. What is even scarier than the minuscule contributions you might make is the few that have done anything but minuscule. Those people are amazingly smart. By the way, cats do like vacuums... http://www.youtube.com/watch?v=bCzkm2z4-6g

If they're so smart, why aren't they any better at bringing newcomers up to speed?

Re: What do grad students in math do all day?

#62
post #16
post #8

An incredibly accurate depiction of research in any theoretical field, I'd say. Compound that with the fact that during your education you're mostly presented with texts that summarize decades or more of research into a scant few pages as if the people involved had just flowed naturally from one idea to the next, from a problem statement to the incredibly complex idea that unlocks the proof. When it's finally your tu…

Your description of research as "pebbles" reminds me of this representation of PhD research (posted on HN a couple years ago). I like how it captures the idea of pushing out the boundaries of what we know just a tiny bit at a time. http://matt.might.net/articles/phd-school-in-pictures/

Thanks for posting this. His comment immediately reminded me of this and I was about to try to find this exact page.

Re: What do grad students in math do all day?

#63
post #61

Earlier quoted context omitted.

Agreed. After doing 2 years I left with a masters and never looked back. What is even scarier than the minuscule contributions you might make is the few that have done anything but minuscule. Those people are amazingly smart. By the way, cats do like vacuums... http://www.youtube.com/watch?v=bCzkm2z4-6g

If they're so smart, why aren't they any better at bringing newcomers up to speed?

Some thing are hard no matter how you try to explain them. There's lots of stuff that seems to require working through it yourself to understand.

Re: What do grad students in math do all day?

#64
post #61

Earlier quoted context omitted.

Agreed. After doing 2 years I left with a masters and never looked back. What is even scarier than the minuscule contributions you might make is the few that have done anything but minuscule. Those people are amazingly smart. By the way, cats do like vacuums... http://www.youtube.com/watch?v=bCzkm2z4-6g

If they're so smart, why aren't they any better at bringing newcomers up to speed?

Probably because it's hard to distill years of work connecting the dots (which at first don't appear to be connected in an obvious way) in a way that is easily digestable by somebody new to the field.

In any case, I imagine there's more glory in digging further into intellectual stuff than spending time making it palatable for newbies. :)

Re: What do grad students in math do all day?

#65
math research would be much more relevant if they talked to engineers (and hopefully are listened to).

In college a I was told "quantum mechanics = linear algebra" then I hear "electrical engineering = linear algebra".

They were right.

The PhD is a little different. It becomes so specialized... your papers are geared towards only a handful of experts. Literally you and a few other people are the only in the world who understand it. I thought mathematicians had a lot more common ground, but they don't.

Re: What do grad students in math do all day?

#66
post #8

An incredibly accurate depiction of research in any theoretical field, I'd say. Compound that with the fact that during your education you're mostly presented with texts that summarize decades or more of research into a scant few pages as if the people involved had just flowed naturally from one idea to the next, from a problem statement to the incredibly complex idea that unlocks the proof. When it's finally your tu…

[deleted]

Re: What do grad students in math do all day?

#67
post #26

Earlier quoted context omitted.

My dad is an accounting professor, and while I don't think he normally involves undergrads in his research, it seems like he could. This is just one small segment of business research, but he tests how rules and incentives impact decision making. For example, make a game where two people are teamed up. You give person A $10 and tell them they can give as much as they want to person B, and that's it. How much does per…

That sounds more like Sociology. As an aside, I believe my first post and this one could sound like I'm trying to be a dick, I'm honestly not. I am wondering and interested. Business majors and related (like your accounting professor father) always seemed to me to be more practical degrees and not really research fields.

Your impression is pretty accurate. Professional schools like business, social work, education or law do a weird mix of vocational courses and cross-disciplinary/applied work. The post you're responding to sounds more like behavioural eceonomics than sociology to me (it's the ultimatum game or a similar one) but you could do very similar research in psychology or in anthropology doing cross cultural comparisions of how people play this game. It has been and is being done.

I'm not familiar with accounting research but my impression is that there's quite a lot of overlap with some areas of microeconomics. After all, accounting is either about modelling and prediction or about accurate reporting and analysis if it's not to be book keeping.

Sometimes the cross-disciplinary/applied thing just means that garbage is published by people who aren't familiar with research in another field that covered the same ground decades before. The worst though is when something is researched, disproved and they keep on teaching it in these professional schools for reasons of ideology or politics. Stuff like Howard Gardner's multiple intelligences is still taught in Ed schools and researchers like Linda Gottfredson have to deal with witch hunts because they do work worthy of a real psychology department while in an Ed school. The perils of doing work on on intelligence in a political faculty.

Re: What do grad students in math do all day?

#68
post #25

> Fortunately, math has an incredibly powerful tool that helps bridge the gap. Namely, when we come up with concepts, we also come up with very explicit symbols and notation, along with logical rules for manipulating them. It's a bit like being handed the technical specifications and diagrams for building a vacuum cleaner out of parts. Just to play the devil's advocate ... math has wonderful symbols and methods, but…

> The consequences of the Incompleteness theorems are often overstated, but they do falsify the idea that mathematics is logically consistent, or that a set of symbols, however clear and unambiguous, will prevent basic misunderstandings in even the most fertile minds. The incompleteness theorems don't falsify the idea that mathematics is logically consistent; they do falsify the idea that any reasonable mathematical…

> The incompleteness theorems don't falsify the idea that mathematics is logically consistent; they do falsify the idea that any reasonable mathematical theory could prove its own logical consistency.

Yes, true, but I think that amounts to the same thing. Our inability to prove the thesis casts in doubt our right to assert it at all. That's certainly true for any other mathematical idea. No one was willing to say that Fermat's Last Theorem, or the Four-Color Map Theorem, were proven, until they were.

Nevertheless, I shouldn't have said that the Theorems "falsify" the logical consistency of mathematics. They prevent the notion from being demonstrated, but doesn't invalidate its existence as a hypothesis.

> They also don't remove the possibility that there is some metamathematical justification for ...

Yes, but that's not a positive claim, it's the assertion that it can't be ruled out. And such an effort might fall afoul of the "sufficiently complex" criterion of Godel's Theorems, which brings us full circle.

Re: What do grad students in math do all day?

#69
post #34

Earlier quoted context omitted.

That's the part of the article that stuck out to me. I mean, I used to have a lovely ginger cat who liked nothing more than to be vacuumed. I think that the author should ensure that his cat vacuuming experiments are more rigorous in future.

Well, my cat gets scared to death by a vacuum cleaner. She darts out of the room as soon as it's turned on.

Its the motor noise. Once the cat is 20 years old and totally deaf (depends on breed...), I can verify the cat will love the vacuum cleaner. It feels like being brushed and massaged at the same time. I'm surprised day spas don't do this to humans. Needless to say this is using the hose and brush attachment, not the carpet beater.

Re: What do grad students in math do all day?

#70
post #18

Earlier quoted context omitted.

At my university, the administration is really pushing to have business undergrads active in research - I don't think most of them have the patience to contribute. Makes me really wish they would read articles like this

I admit that I have little knowledge of how many fields work and probably know the least about academia but I still have to ask (or maybe that's why I have to ask) what research does a business undergrad participate in?

"what research does a business undergrad participate in"

Listening to a coworker of mine:

Marketing, obviously. This is how industry wide 99% of SUVs will never leave suburban blacktop but most SUV commercials have the vehicle speeding up and down dirt trails in a national park. Sometimes similar things in business come from random convergent individual evolution, but more often from the outside. Somebody released a paper on the topic of Americans being germophobes about 5-10 years ago, predictably we had to sit thru a product cycle where anything that can theoretically include triclosan, had to include triclosan (and other anti-bacterials, etc). You may remember a similar fad a decade earlier for citrus oils.

Generalized, generic version of what they'll do on an individual case basis with numerical metrics in private sector. Talk to buddies in the field to get raw randomized data and turn the data into a report from a business perspective if you pay $x bounty for finding a security bug that results in a supply demand curve shaped exactly as such, with this effect on product development times, and this effect on total cost of production / ownership, sales figures, etc, all theoretically "industry wide" or at least "subindustry wide"

We don't have a free market system, more of a centrally controlled system. So there's a basically infinite collection of govt laws, rules, regs, where you can gather the raw data for game theoretic analysis of what the central controllers have decided for us. Is it better, purely economically, to hire illegals to staff fast food restaurants? Identifying all the economic costs is actually pretty hard. Someone out there is probably researching every law/rule/reg out there... costs of obeying vs disobeying, cost to purchase alternative legislation via election funds / lobbying, and repeat each along the short term / long term axis.

For accounting the rules are often "what rule can you purchase" or "what you can get away with" but there's also real world accounting. You need to keep two sets of books, one with how fast does the IRS allow you to depreciate "XYZ" for tax purposes, and another set of books for how fast "XYZ" actually depreciates in the real world. Then you have to live off the real world books or else you can get in a horrible cash crunch if your cashflow depends on selling a used "XYZ" to make payroll this month or as a downpayment on a new "XYZ".

Finally criminals spend a lot of time inventing new crimes. New forms of control fraud, etc. Basically, classic social engineering without computer involvement.

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