Article by Gerh, Michael

In collection: Basically computer science

URL: http://link.springer.com/chapter/10.1007%2F978-3-642-25070-5_4

PDF: http://jsxgraph.uni-bayreuth.de/talks/adg10/presentation.pdf

Entry: https://read.somethingorotherwhatever.com/entry/Gerh2010

Article by Miller, Steven J and Montague, David

In collection: Easily explained

URL: http://arxiv.org/abs/0909.4913

PDF: http://arxiv.org/pdf/0909.4913v2

Entry: https://read.somethingorotherwhatever.com/entry/Miller2009

Article by Appel, Andrew W

In collection: Basically computer science

URL: https://www.cs.princeton.edu/~appel/papers/deobfus.pdf

Entry: https://read.somethingorotherwhatever.com/entry/Appel2002

Article by Joseph B. Keller

In collections: Easily explained, Basically physics

A jogger's ponytail sways from side to side as the jogger runs, although her head does not move from side to side. The jogger's head just moves up and down, forcing the ponytail to do so also. We show in two ways that this vertical motion is unstable to lateral perturbations. First we treat the ponytail as a rigid pendulum, and then we...

URL: http://epubs.siam.org/doi/abs/10.1137/090760477

Entry: https://read.somethingorotherwhatever.com/entry/PonytailMotion

In collections: About proof, Fun maths facts

Heath-Brown [6] suggested a short proof of the two squares theorem, thereby simplifying ideas of Liouville. Zagier [15] suggested a particularly neat form of this, a "One sentence proof". It consists of two suitable involutions on the finite set of the solutions of p = x 2 +4yz in positive integers. A parity argument...

URL: https://link.springer.com/chapter/10.1007/978-0-387-68361-4_8

Entry: https://read.somethingorotherwhatever.com/entry/Elsholtz2002

Article by Matthew P. Clay and Nandor J. Simanyi

In collection: Easily explained

R\'enyi's parking problem (or \(1D\) sequential interval packing problem) dates back to 1958, when R\'enyi studied the following random process: Consider an interval \(I\) of length \(x\), and sequentially and randomly pack disjoint unit intervals in \(I\) until the remaining space prevents...

URL: http://arxiv.org/abs/1406.1781v2

PDF: http://arxiv.org/pdf/1406.1781v2

Entry: https://read.somethingorotherwhatever.com/entry/RenyisParkingProblemRevisited

Article by Michel Dekking

In collections: Geometry, Things to make and do

An interesting class of automatic sequences emerges from iterated paperfolding. The sequences generate curves in the plane with an almost periodic structure. We generalize the results obtained by Davis and Knuth on the self-avoiding and planefilling properties of these...

URL: http://arxiv.org/abs/1011.5788v2

PDF: http://arxiv.org/pdf/1011.5788v2

Entry: https://read.somethingorotherwhatever.com/entry/Paperfoldingmorphismsplanefillingcurvesandfractaltiles

Article by Christopher Zeeman

In collections: Easily explained, Fun maths facts, Things to make and do

Dressmaking can raise interesting questions in both geometry and topology. My own involvement began in Bangkok, where I once bought a dress-length of some rather beautiful Thai silk. Unfortunately when I got home all the dress-makers claimed it wasn't long enough to...

URL: https://www.lms.ac.uk/content/mathematics-applied-dressmaking

PDF: https://www.lms.ac.uk/sites/lms.ac.uk/files/1994%20Mathematics%20applied%20to%20dressmaking%20%28preprint%29.pdf

Entry: https://read.somethingorotherwhatever.com/entry/Mathematicsappliedtodressmaking

Check Digits

Web page by Jonathan Mohr

In collections: Basically computer science, Easily explained, Fun maths facts, Unusual arithmetic

A decimal (or alphanumeric) digit added to a number for the purpose of detecting the sorts of errors humans typically make on data entry.

URL: http://www.augustana.ualberta.ca/~mohrj/algorithms/checkdigit.html

Entry: https://read.somethingorotherwhatever.com/entry/CheckDigits

Mathematics ClipArt

Web page by Florida Center for Instructional Technology

In collections: Art, Lists and catalogues

The Mathematics ClipArt collection includes 9,820 images for algebra, geometry, trigonometry, probability, money, number sense, and more., conveniently arranged in 222 galleries. This comprehensive set of illustrations for teachers and students consists of ClipArt for all levels of K-12 math classes....

URL: https://etc.usf.edu/clipart/galleries/722-mathematics

Entry: https://read.somethingorotherwhatever.com/entry/MathematicsClipArt

Article by Michael P. Krystek

In collections: History, Notation and conventions

The concept of an angle is one that often causes difficulties in metrology. These are partly caused by a confusing mixture of several mathematical terms, partly by real mathematical difficulties and finally by imprecise terminology. The purpose of this publication is to...

URL: http://arxiv.org/abs/2101.01023v2

PDF: http://arxiv.org/pdf/2101.01023v2

Entry: https://read.somethingorotherwhatever.com/entry/Thetermangleintheinternationalsystemofunits

@christianp The entry at https://read.somethingorotherwhatever.com/entry/item32 has a broken link.

Article by Pierre Cartier

In collections: Notation and conventions, The act of doing maths

My thesis is:there is another way of doing mathematics, equally successful, and the two methods should supplement each other and not fight.

URL: http://ftp.gwdg.de/pub/misc/EMIS/journals/SLC/wpapers/s44cartier1.pdf

Entry: https://read.somethingorotherwhatever.com/entry/Mathemagics

A matching in a graph \(G\) is a subset of edges in \(G\) such that no two meet the same node in \(G\). The convex polyhedron \(C\) is characterised, where the extreme points of \(C\) correspond to the matchings in \(G\). Where each edge of \(G\) carries a real numerical weight, an efficient algorithm is described for finding a matching in \(G\) with maximum weight-sum.

URL: http://nvlpubs.nist.gov/nistpubs/jres/69B/jresv69Bn1-2p125_A1b.pdf

Entry: https://read.somethingorotherwhatever.com/entry/item49

Article by Gale, David

In collections: Fun maths facts, Integerology

URL: http://link.springer.com/10.1007/BF03024070

Entry: https://read.somethingorotherwhatever.com/entry/Gale1991

Web page by Anonymous

In collections: The act of doing maths, About proof

URL: http://www.quora.com/Mathematics/What-are-some-of-the-most-ridiculous-proofs-in-mathematics

Entry: https://read.somethingorotherwhatever.com/entry/item28

Article by Matthew P. Clay and Nandor J. Simanyi

In collection: Easily explained

R\'enyi's parking problem (or \(1D\) sequential interval packing problem) dates back to 1958, when R\'enyi studied the following random process: Consider an interval \(I\) of length \(x\), and sequentially and randomly pack disjoint unit intervals in \(I\) until the remaining space prevents...

URL: http://arxiv.org/abs/1406.1781v2

PDF: http://arxiv.org/pdf/1406.1781v2

Entry: https://read.somethingorotherwhatever.com/entry/RenyisParkingProblemRevisited

Article by Erik D. Demaine and Martin L. Demaine and Ryuhei Uehara

In collections: Basically computer science, Easily explained, Geometry, Fun maths facts

We show how to construct interlocked collections of simple polygons in the plane that fall apart upon removing certain combinations of pieces. Precisely, interior-disjoint simple...

URL: http://erikdemaine.org/papers/InterlockedPolygons_CCCG2010/

PDF: http://erikdemaine.org/papers/InterlockedPolygons_CCCG2010/paper.pdf

Entry: https://read.somethingorotherwhatever.com/entry/AnyMonotoneBooleanFunctionCanBeRealizedByInterlockedPolygons

Article by Deuber, W A and Simonovits, M and Os, V T S

URL: http://renyi.hu/~miki/walter07.pdf

Entry: https://read.somethingorotherwhatever.com/entry/Deuber2004

On Kaprekar's Junction Numbers

Article by Max A. Alekseyev and Donovan Johnson and N. J. A. Sloane

In collections: Fun maths facts, Integerology

A base b junction number u has the property that there are at least two ways to write it as u = v + s(v), where s(v) is the sum of the digits in the expansion of the number v in base b. For the base 10 case, Kaprekar in the 1950's and 1960's studied...

URL: http://arxiv.org/abs/2112.14365v1

PDF: http://arxiv.org/pdf/2112.14365v1

Entry: https://read.somethingorotherwhatever.com/entry/OnKaprekarsJunctionNumbers

- Owner
- @christianp

Bot

@christianp's collection of interesting and unusual maths references.

Posts one interesting reference a day.

http://read.somethingorotherwhatever.com

Joined Apr 2017