When Marshfield math teacher Jean Kelley suggested last year that her friend Spring Sirkin produce a play about mathematics, Sirkin was skeptical.
Full story: http://www.boston.com/news/education/k_12/articles/2009/11/12/eureka_a_touring_play_makes_math_dramatic_for_middle__and_high_schoolers/
Friday, November 13, 2009
Monday, November 9, 2009
Speaker and Topic for November 13 Colloquium
You are invited to the Mathematics Colloquium at CCSU scheduled for
Friday, November 13, from 2:00 to 3:00 PM in Maria Sanford Hall Room 101.
Speaker: Zheng Huang, College of Staten Island.
Title: Forcing terms in some PDEs and problems in geometry.
Abstract: I will speak on several variations of the mean curvature flow (MCF) equations and the quest of constant mean curvature (CMC) (hyper)surfaces in various spaces.
This colloquium is sponsored by the Math Club at CCSU.
For directions to CCSU, or for information for past or future
colloquia presentations, please visit the website of our Colloquium:
http://www.math.ccsu.edu/gotchev/colloquium/
Ivan Gotchev, Ph.D., Professor of Mathematics, Mathematical Sciences Department, Central Connecticut State University
Friday, November 13, from 2:00 to 3:00 PM in Maria Sanford Hall Room 101.
Speaker: Zheng Huang, College of Staten Island.
Title: Forcing terms in some PDEs and problems in geometry.
Abstract: I will speak on several variations of the mean curvature flow (MCF) equations and the quest of constant mean curvature (CMC) (hyper)surfaces in various spaces.
This colloquium is sponsored by the Math Club at CCSU.
For directions to CCSU, or for information for past or future
colloquia presentations, please visit the website of our Colloquium:
http://www.math.ccsu.edu/gotchev/colloquium/
Ivan Gotchev, Ph.D., Professor of Mathematics, Mathematical Sciences Department, Central Connecticut State University
Monday, November 2, 2009
Speaker and Topic for Nov. 6 Colloquium
You are invited to the Mathematics Colloquium at CCSU scheduled for
Friday, November 6, from 2:00 to 3:00 PM in Maria Sanford Hall Room 101.
Speaker: Wai Kiu Chan, Wesleyan University.
Title: Quadratic forms: from local to global.
Abstract: An integral quadratic form is called regular if it represents all integers which cannot be ruled out by congruence consideration. Examples are the sum of four squares and the other universal quadratic forms. The goal of this talk is to first review the local-global principle of Hasse and Minkowki, and then describe some of the recent advances on the study of regular quadratic forms and generalizations, with emphasis put on various finiteness results.
This colloquium is sponsored by the NSF – STEM Scholarship Program at CCSU; therefore all recipients of the scholarship are urged to attend.
For directions to CCSU, or for information for past or future
colloquia presentations, please visit the website of our Colloquium:
http://www.math.ccsu.edu/gotchev/colloquium/
Ivan Gotchev, Ph.D., Professor of Mathematics, Mathematical Sciences Department, Central Connecticut State University
Friday, November 6, from 2:00 to 3:00 PM in Maria Sanford Hall Room 101.
Speaker: Wai Kiu Chan, Wesleyan University.
Title: Quadratic forms: from local to global.
Abstract: An integral quadratic form is called regular if it represents all integers which cannot be ruled out by congruence consideration. Examples are the sum of four squares and the other universal quadratic forms. The goal of this talk is to first review the local-global principle of Hasse and Minkowki, and then describe some of the recent advances on the study of regular quadratic forms and generalizations, with emphasis put on various finiteness results.
This colloquium is sponsored by the NSF – STEM Scholarship Program at CCSU; therefore all recipients of the scholarship are urged to attend.
For directions to CCSU, or for information for past or future
colloquia presentations, please visit the website of our Colloquium:
http://www.math.ccsu.edu/gotchev/colloquium/
Ivan Gotchev, Ph.D., Professor of Mathematics, Mathematical Sciences Department, Central Connecticut State University
Monday, October 26, 2009
Speaker and Topic for October 30 Colloquium
You are invited to the Mathematics Colloquium at CCSU scheduled for
Friday, October 30, from 2:00 to 3:00 PM in Maria Sanford Hall Room 101.
Speaker: Krishna K. Saha, CCSU.
Title: Profile Likelihood Based Confidence Interval for the Dispersion Parameter in Count Data.
Abstract: The dispersion parameter is an important and versatile measure in the analysis of
one-way layout of count data in biological studies. Many authors have examined the
bias and efficiency of different estimators of the dispersion parameter for finite data
sets, but little attention has been paid to the accuracy of its confidence interval. In this
talk we compare the small-sample coverage probabilities of four different approaches
for computing the confidence intervals of the dispersion parameter in counts based on a
parametric model as well as the models that are specified by only the first two moments
of the counts. We strongly recommended that one of these be used in practice. Finally,
these methods are applied to a set of biological data. I will start my talk with the basic
concepts of the confidence interval methods, along with all basic definitions related with
this topic.
For directions to CCSU, or for information for past or future
colloquia presentations, please visit the website of our Colloquium:
http://www.math.ccsu.edu/gotchev/colloquium/
Ivan Gotchev, Ph.D.Professor of MathematicsMathematical Sciences DepartmentCentral Connecticut State University
Friday, October 30, from 2:00 to 3:00 PM in Maria Sanford Hall Room 101.
Speaker: Krishna K. Saha, CCSU.
Title: Profile Likelihood Based Confidence Interval for the Dispersion Parameter in Count Data.
Abstract: The dispersion parameter is an important and versatile measure in the analysis of
one-way layout of count data in biological studies. Many authors have examined the
bias and efficiency of different estimators of the dispersion parameter for finite data
sets, but little attention has been paid to the accuracy of its confidence interval. In this
talk we compare the small-sample coverage probabilities of four different approaches
for computing the confidence intervals of the dispersion parameter in counts based on a
parametric model as well as the models that are specified by only the first two moments
of the counts. We strongly recommended that one of these be used in practice. Finally,
these methods are applied to a set of biological data. I will start my talk with the basic
concepts of the confidence interval methods, along with all basic definitions related with
this topic.
For directions to CCSU, or for information for past or future
colloquia presentations, please visit the website of our Colloquium:
http://www.math.ccsu.edu/gotchev/colloquium/
Ivan Gotchev, Ph.D.Professor of MathematicsMathematical Sciences DepartmentCentral Connecticut State University
Monday, October 12, 2009
Speaker and Topic for Oct. 16 Colloquium
You are invited to the Mathematics Colloquium at CCSU scheduled for
Friday, October 16, from 2:00 to 3:00 PM in Maria Sanford Hall Room 101.
Speaker: Robert V. Devaney, Boston University.
Title: The Fractal Geometry of the Mandelbrot Set.
Abstract: In this lecture we describe several folk theorems concerning the Mandelbrot set.
While this set is extremely complicated from a geometric point of view, we will show
that, as long as you know how to add and how to count, you can understand this
geometry completely. We will encounter many famous mathematical objects in the
Mandelbrot set, like the Farey tree and the Fibonacci sequence. And we will find many
soon-to-be-famous objects as well, like the "Devaney" sequence. There might even be a
joke or two in the talk.
This colloquium is sponsored by the Math Club at CCSU.
For directions to CCSU, or for information for past or future
colloquia presentations, please visit the website of our Colloquium
http://www.math.ccsu.edu/gotchev/colloquium/
Ivan Gotchev, Ph.D., Professor of Mathematics, Mathematical Sciences Department, Central Connecticut State University
Friday, October 16, from 2:00 to 3:00 PM in Maria Sanford Hall Room 101.
Speaker: Robert V. Devaney, Boston University.
Title: The Fractal Geometry of the Mandelbrot Set.
Abstract: In this lecture we describe several folk theorems concerning the Mandelbrot set.
While this set is extremely complicated from a geometric point of view, we will show
that, as long as you know how to add and how to count, you can understand this
geometry completely. We will encounter many famous mathematical objects in the
Mandelbrot set, like the Farey tree and the Fibonacci sequence. And we will find many
soon-to-be-famous objects as well, like the "Devaney" sequence. There might even be a
joke or two in the talk.
This colloquium is sponsored by the Math Club at CCSU.
For directions to CCSU, or for information for past or future
colloquia presentations, please visit the website of our Colloquium
http://www.math.ccsu.edu/gotchev/colloquium/
Ivan Gotchev, Ph.D., Professor of Mathematics, Mathematical Sciences Department, Central Connecticut State University
Monday, October 5, 2009
Speaker and Topic for October 9 Colloquium
You are invited to the Mathematics Colloquium at CCSU scheduled for
Friday, October 9, from 2:00 to 3:00 PM in Maria Sanford Hall Room 101.
Speaker: Elizabeth Denne, Smith College.
Title: Introduction to Geometric Knot Theory.
Abstract: We all know how to tie our shoelaces, but how much string is needed? What shape is formed when the knot is pulled tight? In this introductory talk we'll give some answers to these surprisingly difficult questions. In particular, I'll introduce the notions of ropelength and total curvature of knots.
No previous knowledge of knot theory is assumed.
For directions to CCSU, or for information for past or future
colloquia presentations, please visit the website of our Colloquium:
http://www.math.ccsu.edu/gotchev/colloquium/
Ivan Gotchev, Ph.D., Professor of Mathematics, Mathematical Sciences Department, Central Connecticut State University
Friday, October 9, from 2:00 to 3:00 PM in Maria Sanford Hall Room 101.
Speaker: Elizabeth Denne, Smith College.
Title: Introduction to Geometric Knot Theory.
Abstract: We all know how to tie our shoelaces, but how much string is needed? What shape is formed when the knot is pulled tight? In this introductory talk we'll give some answers to these surprisingly difficult questions. In particular, I'll introduce the notions of ropelength and total curvature of knots.
No previous knowledge of knot theory is assumed.
For directions to CCSU, or for information for past or future
colloquia presentations, please visit the website of our Colloquium:
http://www.math.ccsu.edu/gotchev/colloquium/
Ivan Gotchev, Ph.D., Professor of Mathematics, Mathematical Sciences Department, Central Connecticut State University
Tuesday, September 29, 2009
Finding Order in the Apparent Chaos of Currents
NYT - Over the past 10 years, scientists have made enormous strides in their ability to identify and make images of the underlying mechanics of flowing air and water, and to predict how objects move through these flows.
Full story:
http://www.nytimes.com/2009/09/29/science/29chaos.html?_r=1
Full story:
http://www.nytimes.com/2009/09/29/science/29chaos.html?_r=1
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