Search found 1045 matches

by Joseph Malkevitch
Tue Apr 25, 2017 11:14 am
Forum: Math is More: General Discussion
Topic: Improving image compression
Replies: 0
Views: 1

Improving image compression

Dear Colleagues, Many important recent technologies depend on the idea that information (binary sequences) can be compressed. Images often are very large as data sets so techniques which compress images effectively are of considerable interest. Here is a recent article about some new approaches to i...
by Joseph Malkevitch
Tue Apr 25, 2017 11:02 am
Forum: Math is More: General Discussion
Topic: School effectiveness
Replies: 0
Views: 1

School effectiveness

Dear Colleagues, One thing is sure, in the past, Americas public school worked. They were an engine for class mobility and offered recent immigrants as well as children from families that had long roots in the US a way to live the American dream. In recent years, the "school choice" moveme...
by Joseph Malkevitch
Sun Apr 23, 2017 5:24 pm
Forum: Math is More: General Discussion
Topic: Mathematics and its nature
Replies: 0
Views: 1

Mathematics and its nature

Dear Colleagues, Many mathematicians and others have tried to position mathematics as a subject with respect to other human pursuits. Reuben Hersh has written extensively on this subject and in honor of Hersh's 90th birthday, Doron Zeilberger has offered his views on the topic. https://arxiv.org/pdf...
by Joseph Malkevitch
Sun Apr 23, 2017 4:40 pm
Forum: Math is More: General Discussion
Topic: Yoshimoto cube
Replies: 0
Views: 3

Yoshimoto cube

Dear Colleagues, Many puzzles have great appeal to me both as physically beautiful objects and for the ingenuity of their design. An example of such a "puzzle" is the Yoshimoto cube. https://en.wikipedia.org/wiki/Yoshimoto_Cube Here is a brief video showing the "action" of the Yo...
by Joseph Malkevitch
Sun Apr 23, 2017 4:30 pm
Forum: Math is More: General Discussion
Topic: Soap bubble photographs
Replies: 0
Views: 3

Soap bubble photographs

Dear Colleagues,

Soap bubbles have attracted lots of interest as mathematical objects. The are also an ongoing source of visual wonder as illustrated in these photographs:

http://dangerousminds.net/comments/soap ... rks_of_art

Regards,

Joe
by Joseph Malkevitch
Sun Apr 16, 2017 7:31 pm
Forum: Math is More: General Discussion
Topic: Discrete versus continuous models
Replies: 0
Views: 14

Discrete versus continuous models

Dear Colleagues, Continuous mathematics (notably Calculus) developed before many of the flourishing parts of discrete mathematics which started to come into their own after the development of the digital computer. Yet, often scientists model systems that seem at first blush to call for discrete mode...
by Joseph Malkevitch
Sun Apr 16, 2017 6:16 pm
Forum: Math is More: General Discussion
Topic: Geometry of space
Replies: 0
Views: 7

Geometry of space

Dear Colleagues, Both physicists and mathematicians study space but to some extent from a different perspective. Mathematicians are concerned with space from the point of view of the properties that one can deduce from the assumptions one makes (axioms). Physicists (and other scientists) are interes...
by Joseph Malkevitch
Fri Apr 14, 2017 12:03 pm
Forum: Math is More: General Discussion
Topic: On Growth and Form
Replies: 0
Views: 6

On Growth and Form

Dear Friends, D’arcy Wentworth Thompson's book On Growth and Form has turned 100 years old. This remarkable volume has inspired lots of interest in biology, design (symmetry) and mathematics. Here are some articles commenting on the significance and outgrowth's of Thompson's work. http://www.nature....
by Joseph Malkevitch
Fri Apr 14, 2017 11:57 am
Forum: Math is More: General Discussion
Topic: Lizard spots
Replies: 0
Views: 6

Lizard spots

Dear Colleagues,

Work of Alan Turing attempted to model how patterns on the coats of animals might be explained. Recently these mathematical ideas have been applied to lizard spots.

https://www.nature.com/news/how-lizards ... ts-1.21817

Regards,

Joe
by Joseph Malkevitch
Wed Apr 12, 2017 10:37 am
Forum: Math is More: General Discussion
Topic: Girls mathematical olympiads
Replies: 0
Views: 13

Girls mathematical olympiads

Dear Colleagues,

Information about the recently completed girls mathematical olympiads is available here:

https://www.egmo2017.ch/news/

Regards,

Joe
by Joseph Malkevitch
Wed Apr 12, 2017 10:19 am
Forum: Math is More: General Discussion
Topic: Redistricting
Replies: 0
Views: 7

Redistricting

Dear Colleagues, The apportionment problem refers to the mathematical model of distributing h seats in a legislature to claimants (parties or states) on the basis of votes or population. https://en.wikipedia.org/wiki/Apportionment_paradox However, after a number of seats assigned to a state, say for...
by Joseph Malkevitch
Sat Apr 08, 2017 4:37 pm
Forum: Math is More: General Discussion
Topic: Physics approach to the Riemann Hypothesis
Replies: 0
Views: 11

Physics approach to the Riemann Hypothesis

Dear Colleagues, Working on old conjectures which have defied solution is courageous. Many "proofs" of the Fermat Last Theorem were attempted before Wiles work lead to a proof. There have been many attempts to establish the Riemann Hypothesis over the years, but so far there is no proof. R...
by Joseph Malkevitch
Sat Apr 08, 2017 10:45 am
Forum: Math is More: General Discussion
Topic: Understanding cooperation
Replies: 0
Views: 19

Understanding cooperation

Dear Colleagues, Game Theory has been used to understand the nature of cooperation and there is lots of research concerning what fosters cooperative behavior in small and large groups. Here is a recent item about cooperation drawing on insights obtained from "social networks." http://news....
by Joseph Malkevitch
Sat Apr 08, 2017 10:39 am
Forum: Math is More: General Discussion
Topic: Turing Award for 2016
Replies: 0
Views: 14

Turing Award for 2016

Dear Colleagues, The Turing Award for 2016, the award many view as the most prestigious in Computer Science has been awarded to Sir Tim Berners-Lee, for "inventing" the World Wide Web. https://www.washingtonpost.com/national/health-science/inventor-of-world-wide-web-wins-computings-nobel-p...
by Joseph Malkevitch
Thu Apr 06, 2017 2:47 pm
Forum: Math is More: General Discussion
Topic: Order/Disorder - Ramsey Theory
Replies: 0
Views: 9

Order/Disorder - Ramsey Theory

Dear Colleagues, It might have seemed that great progress in combinatorics would have come earlier than progress in continuous mathematics. However, somewhat surprisingly Calculus and the flowering of Real and Complex Analysis came earlier than "deep" results in discrete mathematics of whi...

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