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11:00 AM | April 17, 2014

Solution at the bottom of this page.Like this problem? Try our Contest Problem Book series!April is Mathematics Awareness Month! From magic squares and Möbius bands to magical card tricks and illusions, mysterious phenomena with elegant “Aha!” explanations have permeated mathematics for centuries. Such brain-teasing challenges promote creative and rational thinking, attract a wide range of people to the subject, and often inspire serious mathematical research. The
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[ Apologies for multiple copies. Please forward to interested colleagues. ]
CALL FOR PAPERS
Business Processes in Collective Adaptive Systems
(BPCAS 2014)
September 8, 2014, Haifa, Israel
In conjunction with the 12th International Conference on Business Process Management (BPM 2014)
Submission deadline: 1 June 2014
http://www.bpcas.org
ABOUT THE WORKSHOP
BPCAS is a new workshop focusing on all topics related to Collective Adaptive Systems (CAS). It aims to provide a high-quality forum
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6:00 AM | 1813

1813 = 7 x 7 x 37.1813 is the sum of the first 35 semiprimes (A062198).1813 is the number of trees on 15 vertices with diameter 8.1813 is 12221 in base 6.1813 has a representation as a sum of two squares: 1813 = 72 + 422.1813 divides 486 - 1.Source: What's Special About This Number?

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3:55 PM | Easy as 1, 2, 3?

The natural numbers, 1, 2, 3, 4, ..., are nice. So what could be nicer than discovering interesting patterns within them?
The natural numbers, 1, 2, 3, 4, ..., are nice. We all understand them and we use them countless times every day. So what could be nicer
than discovering interesting patterns within them?
What secrets do the natural numbers hold?read more

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After experiencing a tragic and truncated end to the 2013 Boston Marathon, race organizers were faced not only with grief but with hundreds of administrative decisions, including plans for the 2014 race – an event beloved by Bostonians and people … Continue reading →

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2:41 PM | SIAM Unwrapped April 2014

News & announcements for the SIAM membership community Download a PDF version Dear SIAM members, Did you know that SIAM offers discounted member rates for members of other mathematical societies? SIAM has a reciprocity agreement with 12 societies: view the entire list. If you would like to change your membership to a “reciprocal” category, contact [...]

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Do you think this conversation is happening in Finland, that the Finnish Council of Teachers of Math is having sessions about leveraging technology in the classroom?
-Karim Ani
At the NCTM conference last week I attended a panel discussion and was struck by Karim's comment. He continued with "sometimes I'm a bit of Luddite because often times we use technology as a thing to pursue in lieu of the thing that we actually want to pursue." [That thing being children learning math.] It […]

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BUDAPEST SUMMER SCHOOL IN DISCRETE MATHEMATICS
Second Announcement
The Institute of Mathematics of Eötvös University Budapest is
organizing a one-week long summer school in mathematics between June 23
(Monday) and June 27 (Friday) for undergraduate and graduate students.
There will be 7 mini-courses (2 x 90 minutes each) with various topics
from discrete mathematics. Here is the list of lectures:
1) Kristóf Bérczi: Arborescence packing and its
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11:00 AM | April 16, 2014

Solution at the bottom of this page.Like this problem? Try our Contest Problem Book series!April is Mathematics Awareness Month! From magic squares and Möbius bands to magical card tricks and illusions, mysterious phenomena with elegant “Aha!” explanations have permeated mathematics for centuries. Such brain-teasing challenges promote creative and rational thinking, attract a wide range of people to the subject, and often inspire serious mathematical research. The
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9:10 AM | [DMANET] doctoral training courses in optimisation, heuristics, simulation and stochastic modelling

NATCOR is one of six UK-based Taught Course Centres in the Mathematical Sciences. Although NATCOR is aimed mainly at PhD students working in Operational Research, the courses that we run may also be of interest to students or post-docs working in Engineering, Computer Science or the Physical Sciences. In particular, we run courses on optimisation, heuristics, simulation and stochastic modelling. For further details, see:
http://www.natcor.ac.uk/courses.asp
Professor Adam N.
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========================================================= Call for papers DOCTORAL PROGRAM at the 20th International Conference on Principles and Practice of Constraint Programming DP-CP 2014 Lyon, France, September 8-12, 2014 http://cp2014.a4cp.org/program/dp========================================================= SUBMISSION DEADLINE: 15 JUNE, 2014As part of the 2014
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6:30 AM | 1782

1782 = 2 x 3 x 3 x 3 x 3 x 11.1782 is a heptagonal number.1782 is the smallest number that is three times the sum of all the two-digit numbers that can be made using the digits of 1782.1782 is the smallest number n such that n and 4n (7128) are anagrams.1782 is 3366 in base 8.1782 divides 8918 - 1.Source: Number Gossip

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9:22 PM | Best Jobs 2014

According to the latest ranking by CareerCast.com, the best four jobs of 2014 are: 1. Mathematician. 2. Tenured professor. 3. Statistician. 4. Actuary. (The worst was lumberjack.)

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Dear all,
Please find below a call for application for a post-doc in Telecom
ParisTech, Paris, France.
POST-DOC POSITION
UNIVERSITY: Telecom ParisTech, Paris, France
CONTACT: Marceau Coupechoux, Associate Professor in the Computer and
Network Science Dept. marceau.coupechoux@telecom-paristech.fr
TITLE: Resource Allocation in Energy Harvesting Small Cells
TOPIC: The research topic is to study and propose energy efficient
resource allocation algorithms for LTE small cells, included in a
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11:00 AM | April 15, 2014

Solution at the bottom of this page.Like this problem? Try our Contest Problem Book series!April is Mathematics Awareness Month! From magic squares and Möbius bands to magical card tricks and illusions, mysterious phenomena with elegant “Aha!” explanations have permeated mathematics for centuries. Such brain-teasing challenges promote creative and rational thinking, attract a wide range of people to the subject, and often inspire serious mathematical research. The
[…]

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10:34 AM | Peeps

How many Peeps are sold at Easter time each year? Treat your students to some authentic and delicious math as they estimate, consider reasonability, determine necessary info, problem solve and conduct random samplings. The activity, hints and data are below. CCSS: 7.SP.1,…Read more →

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Start: Jun 2 2014 - 13:22
End: Jun 10 2014 - 13:22

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School on "Graph Theory, Algorithms and Applications"
International School of Mathematics -- "Guido Stampacchia"
Centre "Ettore Majorana" for Scientific Culture
Erice, Sicily (Italy)
September 8-16, 2014
http://www.graphalgorithms.it/erice2014/
LECTURERS:
* Alexandr Andoni, Microsoft Research
* Antonio Frangioni, University of Pisa
* Andrew V. Goldberg, Microsoft Research
* Giuseppe F. Italiano, University of Rome "Tor Vergata"
* Haim Kaplan, Tel Aviv
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No summary available for this post.

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Computer Science E-days (CSEDays)
Strings, Languages, Automata
Ekaterinburg, Russia, August 23 -- 25, 2014
http://www.csedays.ru/theory2014/about
LECTURERS
Mario Guarracino (High Perfomance Computing and Networking Institute, Italy)
How fast can you align biological strings?
Gregory Kucherov (University Paris-Est Marne-la-Vallee, France)
Full-text indexes for sequence data and their applications
Andreas Maletti (University of Stuttgart, Germany)
Applications of automata theory in parsing
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6:00 AM | 1693

1693 is a prime number.1693 is a prime that results from merging four successive digits in the decimal expansion of pi (A104824).1693 is a prime whose binary representation (11010011101) is also the decimal representation of a prime (A065720).1693 is the smallest prime greater than 412 (A007491).1693 has a representation as a sum of two squares: 1693 = 182 + 372.1693 is the hypotenuse of a primitive Pythagorean triple: 16932 = 10452 + 13322.1693 divides 924 - 1.Pope Clement XIII was born in the […]

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1:00 AM | {6,3,5} Honeycomb

This is the {6,3,5} honeycomb, drawn by Roice Nelson. A 3-dimensional honeycomb is a way of filling 3d space with polyhedra or infinite sheets of polygons. Besides honeycombs in 3d Euclidean space, we can also have honeycombs in 3d hyperbolic space, a non-Euclidean geometry with constant negative curvature. The {6,3,5} honeycomb lives in hyperbolic space, and every vertex has 12 edges coming out, just as if you drew edges from the middle of an icosahedron to its corners.

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4:32 PM | [DMANET] SLSP 2014: 3rd call for papers

****************************************************************************
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2nd INTERNATIONAL CONFERENCE ON STATISTICAL LANGUAGE AND SPEECH PROCESSING
SLSP 2014
Grenoble, France
October 14-16, 2014
Organised by:
Équipe GETALP
Laboratoire d'Informatique de Grenoble
Research Group on Mathematical Linguistics (GRLMC)
Rovira i Virgili
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No summary available for this post.

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Start: Sep 22 2014 - 09:00
End: Sep 25 2014 - 17:30

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--- New: student travel awards ---
--- Submission deadline: April 25 ---
Last Call for Papers
SIROCCO 2014
Twenty-First International Colloquium on Structural
Information and Communication Complexity
July 23-25, Takayama Green Hotel, Takayama, Japan
http://sites.google.com/site/sirocco2014japan/
----------------------------------------------------------------------
= Theme =
SIROCCO is devoted to the study of the interplay between communication
and knowledge in multi-processor systems from
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11:00 AM | April 14, 2014

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10:50 AM | Summer School on Quantum Groups and Integrability – Algebraic, Analytic and Geometric Aspects

Start: Jul 21 2014 - 09:00
End: Jul 25 2014 - 16:45

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Non voglio fare concorrenza alla splendida spiegazione di Amedeo o a quella tecnica di Corrado, ma mia sorella, leggendo il post di pancia scritto nella sera dell'annuncio di BICEP2, ha candidamente confessato di non aver capito cosa era accaduto quel giorno. E allora proviamoci, a raccontarlo. (da The Cartoon History of the Universe #1 di Larry Gonick)C'era una volta un'idea di universo, che era la Terra al centro, quindi il Sole, la Luna e gli altri pianeti e sullo sfondo le stelle fisse,
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Hubble E. (1929). A relation between distance and radial velocity among extra-galactic nebulae, Proceedings of the National Academy of Sciences, 15 (3) 168-173. DOI: 10.1073/pnas.15.3.168

Gamow G. (1948). The Evolution of the Universe, Nature, 162 (4122) 680-682. DOI: 10.1038/162680a0

Alpher R.A. & Herman R. (1948). Evolution of the Universe, Nature, 162 (4124) 774-775. DOI: 10.1038/162774b0

Alpher R., Bethe H. & Gamow G. (1948). The Origin of Chemical Elements, Physical Review, 73 (7) 803-804. DOI: 10.1103/PhysRev.73.803

Peebles P.J.E., Schramm D.N., Turner E.L. & Kron R.G. (1994). The Evolution of the Universe, Scientific American, 271 (4) 52-57. DOI: 10.1038/scientificamerican1094-52

McLeish T.C.B., Bower R.G., Tanner B.K., Smithson H.E., Panti C., Lewis N. & Gasper G.E.M. (2014). History: A medieval multiverse, Nature, 507 (7491) 161-163. DOI: 10.1038/507161a

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Much of my undergrad was spent studying physics, and although I still think that a physics background is great for a theorists in any field, there are some downsides. For example, I used to make jokes like: “soft isn’t the opposite of hard sciences, easy is.” Thankfully, over the years I have started to slowly […]

Lazer, D., Kennedy, R., King, G. & Vespignani, A. (2014). Big data. The parable of Google Flu: traps in big data analysis., Science, 343 (6176) 1203-1205. PMID: 24626916

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Un triangolo aureo è un triangolo isoscele in cui il rapporto tra uno dei lati uguali con la base è pari alla sezione aurea $\varphi$. Utilizzando un triangolo aureo di lato 1, è possibile dimostrare che \[1 + \frac{1}{\varphi^2} + \frac{1}{\varphi^4} + \cdots = \varphi\] \[\frac{1}{\varphi} + \frac{1}{\varphi^3} + \cdots = 1\] \[\frac{1}{\varphi} + \frac{1}{\varphi^2} + \frac{1}{\varphi^3} + \cdots = \varphi\] Il triangolo aureo qui sopra è lo screenshot della applet realizzata da Irina
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Edwards S. (2014). Proof Without Words: An Infinite Series Using Golden Triangles, The College Mathematics Journal, 45 (2) 120-120. DOI: 10.4169/college.math.j.45.2.120

Citation

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Un triangolo aureo è un triangolo isoscele in cui il rapporto tra uno dei lati uguali con la base è pari alla sezione aurea $\varphi$. Utilizzando un triangolo aureo di lato 1, è possibile dimostrare che \[1 + \frac{1}{\varphi^2} + \frac{1}{\varphi^4} + \cdots = \varphi\] \[\frac{1}{\varphi} + \frac{1}{\varphi^3} + \cdots = \1] \[\frac{1}{\varphi} + \frac{1}{\varphi^2} + \frac{1}{\varphi^3} + \cdots = \varphi\] Il triangolo aureo qui sopra è lo screenshot della applet realizzata da Irina […]

Edwards S. (2014). Proof Without Words: An Infinite Series Using Golden Triangles, The College Mathematics Journal, 45 (2) 120-120. DOI: 10.4169/college.math.j.45.2.120

Citation

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In 1936, Alonzo Church, Alan Turing, and Emil Post each published independent papers on the Entscheidungsproblem and introducing the lambda calculus, Turing machines, and Post-Turing machines as mathematical models of computation. A myriad of other models followed, many of them taking seemingly unrelated approaches to the computable: algebraic, combinatorial, linguistic, logical, mechanistic, etc. Of course, […]

Dershowitz, N. & Gurevich, Y. (2008). A natural axiomatization of computability and proof of Church's Thesis, Bulletin of Symbolic Logic, 14 (3) 299-350. DOI: 10.2178/bsl/1231081370

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MathsBooks tweeted: @MathsBooks

Mathematik & Physik spielen wichtige Rolle für die Künstlerin Tauba Auerbach.
http://t.co/6tLPu1r0I6

2014-04-17 18:04:49

MathsBooks tweeted: @MathsBooks

Erdbebensichere Netzwerke: Mit Mathematik zu robusteren Netzen - heise online http://t.co/YWfMdVg9tw

2014-04-17 18:02:27

MrsCookKHS tweeted: @MrsCookKHS

Ss asked good ? today - why when we integrate 1/x do we not put ln |kx| + C since d/dx of ln(2x), ln(3x), ln(4x) are all 1/x? Please RT

2014-04-17 18:00:58

MathsBooks tweeted: @MathsBooks

RT @spektrum_de: Mittelalterliches Multiversum: Die Physik der Kristallsphären http://t.co/5Qaq1W2zSK

2014-04-17 18:00:54

evelynjlamb tweeted: @evelynjlamb

RT @tomgara: Nicely done: the actual lesson of the $1 million space pen / Russians used a pencil urban myth. http://t.co/j5eUTmjN39 (via @S…

2014-04-17 17:57:22

evelynjlamb tweeted: @evelynjlamb

I leave tissues in the laundry all the dang time, so I'm used to that one.

2014-04-17 17:52:42

evelynjlamb tweeted: @evelynjlamb

I have previously rolled my eyes at my spouse when he cracked eggs he was hardboiling, so that one is extra embarrassing.

2014-04-17 17:51:56

gaussianos tweeted: @gaussianos

2014-04-17 17:51:52

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