Wikipedia:Reference desk/Archives/Mathematics/September 2012

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September 1

Wikipedia:Reference_desk/Archives/Mathematics/2012 September 1

  1. Konig's lemma

September 2

Wikipedia:Reference_desk/Archives/Mathematics/2012 September 2

  1. Graph theory
  2. Maths and music
  3. Binomial process
  4. Stone Cetch Compactification using ultrafilters

September 5

Wikipedia:Reference_desk/Archives/Mathematics/2012 September 5

  1. Project Euler question
  2. Complex variables inequality

September 6

Wikipedia:Reference_desk/Archives/Mathematics/2012 September 6

  1. Implementing an algorithm to generate Proth Primes
  2. Polynomial equations
  3. More on "Project Euler question" from Sept 5
  4. surjective Homomorphism

September 7

Wikipedia:Reference_desk/Archives/Mathematics/2012 September 7

  1. Hyperbolic Trig?
  2. Rocket fin alignment
  3. Axiom of empty set
  4. Name of set

September 8

Wikipedia:Reference_desk/Archives/Mathematics/2012 September 8

  1. "excessive" shuffling
  2. Tesseract
  3. Star Trek Special Effect
  4. Extrapolating sums of powers
  5. Cube: 2 Hypercube

September 9

Wikipedia:Reference_desk/Archives/Mathematics/2012 September 9

  1. Isomorphism between G/N x N ~= G
  2. Finding the constituent numbers in a list that add up to partial totals

September 10

Wikipedia:Reference_desk/Archives/Mathematics/2012 September 10

  1. Matrix subgroup
  2. Standard metrics for quality of multi-objective optimization?
  3. What is a cross-over point in a rational funciton?

September 11

Wikipedia:Reference_desk/Archives/Mathematics/2012 September 11

  1. A countanle
  2. R[X]/(X^2-1)

September 12

Wikipedia:Reference_desk/Archives/Mathematics/2012 September 12

  1. Incompleteness of Arithmetic
  2. Gibbs phenomenon

September 13

Wikipedia:Reference_desk/Archives/Mathematics/2012 September 13

  1. Irreducible nontrivial finite dimensional unitary representations of noncompact connected Lie groups operating on a complex vector space
  2. plotting relations

September 14

Wikipedia:Reference_desk/Archives/Mathematics/2012 September 14

  1. Suspected fault in article on wikipedia
  2. Growth Dirichlet Kernel
  3. Regular structures in the prime spiral о_0

September 15

Wikipedia:Reference_desk/Archives/Mathematics/2012 September 15

  1. connected graphs
  2. Recurrence relation

September 16

Wikipedia:Reference_desk/Archives/Mathematics/2012 September 16

  1. Probability question
  2. Space battle with only one shot
  3. Root of cubic formula
  4. A problem with units

September 17

Wikipedia:Reference_desk/Archives/Mathematics/2012 September 17

  1. L'Hopital's rule
  2. Definite integral from -1 to 1 of 1/x
  3. simple Differential equation
  4. Skewed distribution with given median, mean and SD
  5. When does additivity imply homogeneity?

September 18

Wikipedia:Reference_desk/Archives/Mathematics/2012 September 18

  1. The continuum and cardinality
  2. Complexity class of minimalist pangram construction
  3. see humanities reference desk

September 19

Wikipedia:Reference_desk/Archives/Mathematics/2012 September 19

  1. Cohen and the axiom of choice
  2. Solve this please
  3. Show that a series is not Absolutely convergent.
  4. The maze on today's main page.

September 20

Wikipedia:Reference_desk/Archives/Mathematics/2012 September 20

  1. Lanchester's Law and Game Theory
  2. League problem
  3. x/y in IV quadrant, is the given ratio negative or positive?

September 21

Wikipedia:Reference_desk/Archives/Mathematics/2012 September 21

  1. Integration of 1/x in Quadrant I
  2. Limits of Integration
  3. Inverse birthday problem
  4. cells within a table
  5. Friendship combinations
  6. nPr?

September 22

Wikipedia:Reference_desk/Archives/Mathematics/2012 September 22

  1. a?
  2. Commutability of integration

September 23

Wikipedia:Reference_desk/Archives/Mathematics/2012 September 23

  1. Seeking function
  2. Topology Norm on a space over a complex field
  3. Cantor set and compactness
  4. Number of partitions

September 24

Wikipedia:Reference_desk/Archives/Mathematics/2012 September 24

  1. something in Pythagoras tree (fractal)
  2. Parity of elements of a pythagorean triple

September 25

Wikipedia:Reference_desk/Archives/Mathematics/2012 September 25

  1. a thousand coins a thousand times?
  2. Error in published paper?
  3. vectors and matrices
  4. Maximing product x*y under assumption x y<=A(B-x)(B-y)
  5. Show that a Fourier series converges at particular points

September 26

Wikipedia:Reference_desk/Archives/Mathematics/2012 September 26

  1. Limits
  2. Representations of so(3;1) = Lorentz algebra

September 27

Wikipedia:Reference_desk/Archives/Mathematics/2012 September 27

  1. mode
  2. Uniformly bounded
  3. Sigmoid function between two points

September 28

Wikipedia:Reference_desk/Archives/Mathematics/2012 September 28

  1. Separation of Variables
  2. Integrating Hamilton's equations to find the Hamiltonian

September 29

Wikipedia:Reference_desk/Archives/Mathematics/2012 September 29

  1. Solutions to Laplace's equation
  2. Legendre Polynomials

September 30

Wikipedia:Reference_desk/Archives/Mathematics/2012 September 30

  1. Bin packing problem
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