Archive for the ‘Articles’ Category.

A Squeeze at the Penultimate Trump

On the pictured hand 13 at the Pembury Bridge Club in Pittsfield MA on Wednesday June 14, 2017, as East I made 3S, losing a trick in each suit. After ducking the heart lead and winning the continuation, I could have made 4 by reaching a position with DA5 and H7 in my hand, DJ8 and CJ on the board, and South down to HQ and DQT. Leading my heart endplays South in Diamonds. Peter Winkler explained to me how to make 4 on a Club lead (the previous endplay cannot afford a club loser). After losing e.g. a Club, a Heart, and a Spade, play Spades from dummy, coming down to S53, DJ84 in dummy. Now on the penultimate spade, come down to DAK, Hxx in hand, and South cannot protect both Diamonds and Hearts. (If North leads a Diamond when he gets in with a Club, East will be left with the HA as the second entry to hand. Play Spades in a way to prevent North from getting in to lead Diamonds twice. Curiously, when they start with Hearts, you need to play Spades the other way to prevent South from giving North a Heart ruff.)

Amazing AMS spring sectional in Pullman WA

I just attended an amazing constellation of events around the AMS spring sectional meeting Saturday/Sunday April 22-23, 2017, in Pullman, Washington, organized by Kevin Vixie of Washington State University.

The meeting was preceded by a day on Data Science, with an incredible variety of short talks every 15 minutes, interspersed with discussion periods. Continue reading ‘Amazing AMS spring sectional in Pullman WA’ »

The Life of an Adjunct

Guest post by Donna Kalinowsky

Dear Community College President,

Perhaps you do not know what life is like for an adjunct. When I started here in 1992 or so, I made about $9000 per year. Even then, that was not much. I was eligible for Section 8 housing, food stamps, fuel assistance, Medicaid, head start for my kids, access to local food pantries, Christmas Elf programs for children’s gifts, and the Earned Income credit. Thanks to these things, I was able to raise 4 children, ages 29, 27, 14 and 9. Continue reading ‘The Life of an Adjunct’ »

Retirement Book

screen-shot-2016-11-15-at-8-14-53-amHeartfelt thanks to Brooks Foehl/Alumni Office and especially to my students for their kind remembrances upon my retirement:

Back in Granada

img_2014Back in Granada on my way to Alicante, staying once again at university residence Carmen de la Victoria, I revisited the site of a 13-year-old diary entry, dated June 15, 2003:

A dusty pedestrian road by the Alhambra is lined with engraved quotations. My favorite on Saturday was by Thoreau, translated into Spanish. Here are my own English version constructed from memory as I continued my walk, followed by the English original which I later found on the web, and finally my revision. Continue reading ‘Back in Granada’ »

Bridge in Buenos Aires

R24 Recoleta'16Got to fill in at last minute with Director Marcelo de Carlo at the Recoleta Bridge Club in Buenos Aires 3:30 pm Monday September 4, 2016. On the pictured Hand 2, East on my right opened 1S, I bid 2H, West passed, North bid 3H, East 4D, South 4H, West passed! and so did everyone else. West led the Spade 4 and followed with the 6 as East played K and A. It was surprising that West would pass with three spades, but I decided that W having all three hearts was more likely than false carding with two spades, so I trumped low. To pass with three spades, West must have almost nothing, so East must have the diamond A and club K. I played three rounds of trump to enter dummy and immediately led a diamond, East erring by playing low. Now when I run the hearts, leaving AQ of clubs and J of diamonds in dummy, East falls to an endplay. Unfortunately I chickened out at the last minute and took the losing club finesse.

Fortunately on the last Hand 24 I competed to 5Sx with everyone else in game the other way for 15 IMPS to tie for first.

Working at Home Depot

A guest post by Donna Kalinowsky.

I teach mathematics as an adjunct instructor at Berkshire Community College (BCC) in Massachusetts, which is one of a handful of states that does not allow its employees to pay into Social Security. To get my last requisite credits toward Social Security, I took a part-time job at Home Depot. Home Depot has taught me a lot about gratitude and dignity.

I have met several people at Home Depot who are good, smart, hard working people. I go to them often when I have an issue I can’t solve on my own. Some are part time like me, working unpredictable hours at $11 an hour. I doubt even the few full-time people earn a whole lot more. (Just like BCC, Home Depot tries to minimize full timers in order to avoid paying benefits, though Home Depot does offer some benefits to part timers if they work there long enough.)

I work there by choice, for a special reason, but for these people. This is their life. One girl has no car, so she has to take the bus to work. But if she is scheduled on a day when  no bus service is available, she has to take a cab to work. If she’s scheduled for four hours  at $11 an hour and a taxi costs $20, then it’s almost like she’s working for taxi money. Continue reading ‘Working at Home Depot’ »

More Solutions to Fermat with Fractional Exponents

Nicola Marino has offered to post the following preprint:

Irrational Exponents in Fermat’s Last Theorem. The n > 2 case.

by Nicola Marino

In this paper we find explicit irrational exponents greater than 2 solving the Fermat equation, which we call Algebraically Derived Ratio of Irrational (or ADRI) numbers. We then further expand the class of ADRI numbers to cover all the solution exponents for any Fermat equation.

Continue reading

Dale Hoffman on Community College Students

DaleOffice2010When speaking at the 2015 Washington Two-Year Mathematics Conference at Campbell’s Resort, Lake Chelan, I met many wonderful people, including Dale Hoffman of Bellevue College (formerly Bellevue Community College), who agreed to send me the following inspiring chronicle of some of his past students: Continue reading ‘Dale Hoffman on Community College Students’ »

Williams: Inclusive or Exclusive?

Which quote embodies the best of Williams?

1. “We are so fortunate and proud to be part of this exceptional group of brilliant and interesting faculty and students, the likes of which you’ll find nowhere else.”

2. “As a result of what we have been lucky enough to discover here, we are humbly eager to expand our boundaries and to respect, learn from, and share with everyone.”

It has to be number 2. What we learn from our colleagues and students makes us appreciate other people and other institutions more, not less.

Inclusiveness is the motto of my own department (MathStats). Our students go out and do everything, only a few go on in mathematics, and we’re equally proud of all of them including students who have never taken a math class, but maybe come to a friend’s math colloquium or meet one of us at a Neighborhood event.

Williams does have “elite” associations like Phi Beta Kappa. But the purpose is not to honor the members; it is to include the whole community in the love of learning.

Spencer Flohr ’14 has an excellent post at http://WilliamsAlternative.com on “The Echo Chamber of Elitism,” in which he eloquently describes some of the dangers of elitism:

…The process of acculturation, of becoming a right-thinking elite at one of a few anointed institutions crowds out incipient unorthodox voices in the continuing dialogue of decision-making. Heterodoxy can be nipped in the bud, because it is never given a chance to compete on equal ground with the orthodoxy to which it is opposed.
And yet another unfortunate unintended consequence may result from such concentration of influence: talented people, rather than trying to develop their unique skills to the fullest and thus producing the greatest benefit to society, will instead expend their energies jumping through the hoops which have become the de facto means of becoming successful .

Even George W. Bush and Al Gore, despite egregious errors in practice, agreed on humility in theory in their presidential debates http://www.pbs.org/newshour/bb/politics-july-dec00-for-policy_10-12/:

GOV. GEORGE W. BUSH: If we re an arrogant nation, they ll resent us; if we re a humble nation, but strong, they ll welcome us. And our nation stands alone right now in the world in terms of power, and that s why we ve got to be humble…

VICE PRESIDENT AL GORE: I think that one of the problems that we have faced in the world is that we are so much more powerful than any single nation has been in relationship to the rest of the world than at any time in history, that I know about anyway, that there is some resentment of U.S. power. So I think that the idea of humility is an important one.

When I was making my decision to come to Williams in 1987, I particularly liked it that the students did not take themselves too seriously. We love Williams, but thank goodness we haven’t lost our sense of humor.

I say, let’s think less of ourselves as a tight community of highly intelligent, highly talented people leading the world and more of ourselves as a community welcoming, including, and respecting all within and without as equals.

Originally posted at WilliamsAlternative.com