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 $pi-weight$
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