Tricki
a repository of mathematical know-how
Navigate
Tags
Search
Forums
Help
Content
Users
Search
Enter your keywords:
Advanced search
Containing any of the words:
Containing the phrase:
Containing none of the words:
Only in the category(s):
Mathematics
-General discussion
-Article requests
The Tricki site
-Announcements
-General discussion
-Feature requests
-Bug reports
abstract algebra
Algebra
-Group theory
--combinatorial group theory
-linear algebra
--determinants
-Ring theory
Algebraic Geometry
algebraic topology
analysis
-basic real analysis
-complex analysis
-differential equations
-Fourier analysis
-functional analysis
-harmonic analysis
-partial differential equations
-real analysis
Applied Mathematics
combinatorics
-additive combinatorics
-algebraic combinatorics
-enumerative combinatorics
-extremal combinatorics
-graph theory
-infinitary combinatorics
-probabilistic combinatorics
commutative algebra
dynamical systems
-ergodic theory
Elementary Algebra
Equations
General Problem Solving
geometry
-3-manifolds
-algebraic topology
-geometric topology
--knots and links
homological algebra
homotopy theory
Linear algebra
mathematical physics
Mathematics
Number theory
-Analytic number theory
-computational number theory
-elementary number theory
-Irrationality and transcendence
Numerical analysis
Probability
-Discrete probability
-Elementary probability
-Stochastic processes
probability theory
representation theory
Set theory
Solved Pattern
Statistical mechanics
Statistics
-Repeating Number analysis
Technology
Test articles
theoretical computer science
topology
-Low dimensional topology
--Knots and links
Uncategorized
3-manifolds
abelian groups
absolutely convergent
abstraction
Algebra
algebraic geometry
algebraic group
algorithm
almost constant
alphabet
alternating series test
amalgamated free product
Analysis
approximate
Approximation
arbitrary
area of circle
asymptotic formulas
Axiom
axiom of choice
Azuma's inequality
bijection
bipartite graph
bisection
bounds
building block
Building step by step
calculator
calculus
cardinality
cartesian products
category
Cauchy sequences
Cauchy's integral formula
cauchy's theorem
Cech
centre
chain complexes
chains
change of variable
character
characteristic subgroups
claspers
class equation
closed
cobordism
cochains
cofibrations
cohomology
Combinatorial Identities
Combinatorial Techniques
Combinatorics
commutator
compactification
compactness
comparison test
complex
complex number
complexes
Composite
concentration of measure
conditional convergence
Conditional probability
constraint
construction
constructive proofs
continued fraction
continuous
contour integral
contour integration
convergence
Converse
convexity
Convolution
Countable set
countable union
counterexamples
counting
counting constants
covariance
cryptanalysis
Cubic
cutoff
cyclic group
D-finite generating functions
de Rham
definite integral
degree
delta function
delta-net
denominator
dependent events
derived functors
determinant
Diagonal argument
diagonalization
differentiate
differentiation
dimension
dimension counting
dimensions
dimensions of fibres
direct methods
direct product
direct sum
discrete
discrete groups
discretization
elementary
energy
enough idempotents
entropy
Enumerative Combinatorics
epsilon regularization
equality
equals
equation
equations
Equivalence class
equivalence classes
error terms
estimate
Estimates
Euler's identity
evaluation maps
exact sequence
Examples
exclusion
Existence
existence proofs
exists
exponential sum
ext
extremal examples
Factorizing
Family
Fermat's little theorem
few constraints
fibrations
finite
finite fields
finite groups
finite sets
firm
fixed point
For all
formal systems
Fourier analysis
Fourier expansion
Fourier transform
free groups
free product
Fubini's theorem
function
function field
function spaces
functional analysis
functionals
functions
fundamental group
Generalization
generalized limit
generator
generators
geometry
graph of groups
grid of squares
Group
group action
group actions
group theory
groups
HNN extension
Holomorphic
homology
homotopy
homotopy groups
homotopy theory
idempotent
identities
identity
implicit function theorem
impossibility
inclusion
inclusion-exclusion
indirect proofs of existence
inequality
infinite
Infinite sum
injection
inner product
Integrable
integral
integrals
Integrate
integration
integration by parts
integration by substitution
interpolation
intersection
interval
Invariant
inverse
Irrational
ising model
isoperimetric inequality
isosceles
Lagrange Identity
Lagrange multipliers
large sieve
limit
limiting argument
limits
linear algebra
linear equations
linear independence
linear operators
linear systems
linear transformations
lines
local units
long exact sequence
low-dimensional topology
lower bound
lower central series
LU factorization
M
Markov chain
martingale
matrices
matrix
matrix factorizations
maximum
measure
minimum
modeling
modify
modular arithmetic
Modular exponentiation
monotone sequences
multilinearity
multiplication
multiplicative functions
nested intervals
nets
Newton-Raphson method
non-principal ultrafilter
non-unique maximum
nonlinear equations
normal subgroups
Number code theory
Number theory
numerator
numerical analysis
numerical linear algebra
numerical methods
ode
open
optimization
order
oscillatory integrals
parameters
Parseval's identity
partial differential equations
Path integral
Peirce decomposition
percolation
permutation
polynomial
polynomial algebras
polynomial approximation
power series
presentations
Prime
prime numbers
probabilistic
probabilistic method
probability
problem
Product
properties
quadrature
quantifiers
quartic
quotient
Ramsey theory
random variables
randomized
rapid mixing
rational
rational approximation
real number
recurrence relation
regularity
relations
representation theory
representative
residue theorem
resolution
resolutions
Riemann integral
Riemann sum
riemann surface
Riemann's criterion
ring
ring without identity
rng
s-unital
sampling
scaling
second moment
Seifert matrix
self-similarity
semidirect product
sequences
sequentially compact
series expansion
sets
sharp constant
sheaf
simplicial
singular
Smallness
smoothness
solution
spaces
spectral gap
spectral sequence
square root
stationary phase
statistical mechanics
steganalysis
Stochastic process
Subjects
subsequence
substitute
Sum
supremum
surgery presentation
symmetric groups
symmetries
symmetry
Techniques for counting
tensor power
tensor product
tensor products
test
Test functions
topology
tor
transcendental
transfinite induction
transfinite process
transitivity
union
universal constructions
universal property
universal quantifier
Upper bound
upper bounds
van kampen theorem
Variance
vector spaces
vectors
Weyl's criterion
wreath product
additive combinatorics
Balog-Szemeredi-Gowers theorem
Brouwer's fixed point theorem
Building structures subject to loose constraints
calculus of variations
Cauchy's theorem
chebyshev
Clustering
Cochran-Orr-Teichner filtration
collatz type problems
combinatorial geometry
Combinatorics
completing the square
Complex analysis
Computational number theory
computing sums and integrals
Counting
counting primes in arithmetic progressions
DE
Dense packing
differential equations
Disk embedding theorem
Double-suspension theorem
Dvoretzky's theorem
encryption
enumerative combinatorics
equidistribution
estimating multidimensional integrals
Euler's theorem
evaluating sums
existence of bases
existence of maximal ideals
existence of non-principal ultrafilters
existence of transcendental numbers
Explicit formula
factorizing
Fermat's little theorem
First pretend that a normal subgroup is trivial
Fourier inversion formula
Frankl-Wilson theorem
Freiman's theorem
Graph theory
Green-Tao theorem
Hahn-Banach theorem
Hindman's theorem
homology
If you don't know how to make a decision then don't make it
integration by parts
König's lemma
Konig's lemma
Large sieve inequality
lattices
Liouville's theorem
local theory of Banach spaces
Loop expansion of perturbative invariants
maximum principle
Nielsen--Schreier Theorem
number theory
Numerical linear algebra
optimal control
Percolation
playing with numbers
polynomial equidistribution
primality testing
Prime Number Theorem
probability
quadratic equation
Quasirandomness
Ramsey theory
Ramsey's theorem
random generation
Randomized algorithms
Roth's theorem
row reduction
Sauer-Shelah lemma
Shor's algorithm
Shor's factorizing algorithm
Sigmoidal
Sinc
solving differential equations
Solving Diophantine equations
sparse coverings
Summation of Fourier series
sums of multiplicative functions
Szemeredi's theorem
Tychonoff's theorem
Waring's problem
Weierstrass approximation
Well-ordering principle
Wilson's theorem
Only of the type(s):
Forum topic
Page
Tricki article
Tricki hierarchy
Search this site:
Username:
*
Password:
*
Create new account
Request new password
Recent articles
View a list of all articles.
Geometric view of Hölder's inequality
Diagonal arguments
Finding an interval for rational numbers with a high denominator
Try to prove a stronger result
Use self-similarity to get a limit from an inferior or superior limit.
Prove a consequence first
Lower degree by increasing dimension (or vice-versa)
Numerical optimization
Active forum topics
Plenty of LaTeX errors
Tutorial
A different kind of article?
Countable but impredicative
Tricki Papers
more
Recent comments
choice of the field
1 week 11 hours
ago
Incorrect Image
2 weeks 6 hours
ago
Article classification
31 weeks 2 days
ago
Higher dimensional analogues
52 weeks 10 hours
ago
Angela, I think you missed
2 years 22 weeks
ago
more

1 week 11 hoursago2 weeks 6 hoursago31 weeks 2 daysago52 weeks 10 hoursago2 years 22 weeksago