Participate in expert discussion on topology and analysis topics. This includes point-set topology, Real, complex, harmonic and functional analysis. Also measure and integration theory.
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Graduate Matrix-valued analytic function?
- AxiomOfChoice
- · Replies 2 ·
Graduate Analytical solution of an infinite series
- Matheco
- · Replies 3 ·
Graduate Finding the residue of e^(1/z)/(1-z)
- aiisshsaak
- · Replies 15 ·
Graduate Infinitely differentiable complex functions
- ppy
- · Replies 7 ·
Graduate Why does f(x)δ(x) equal f(0)δ(x) and not f(a)δ(x)?
- dreamLord
- · Replies 44 ·
Undergrad Complex Power Operation: Is x^iy Possible?
- scientificon
- · Replies 3 ·
Graduate Differentiating delta function composed with a function
- rms502
- · Replies 2 ·
Graduate Interpreting ##\alpha \delta(x)##: Is ##\alpha## at ##x=0##?
- matematikuvol
- · Replies 1 ·
Graduate Geometric intuition for abelian integrals and algebraic curves
- bolbteppa
- · Replies 6 ·
Problem 15 section 5.1 from Bartle
- bw0young0math
- · Replies 6 ·
Undergrad Proving Element In Union of Two Infinite Sets Not Necessarily In Intersection
- woundedtiger4
- · Replies 3 ·
Graduate Does the Integral of a Derivative Equal the Function's Net Change?
- jostpuur
- · Replies 29 ·
Undergrad What are upper and lower bounds and why are they important in mathematics?
- woundedtiger4
- · Replies 12 ·
Graduate Proving a conjecture in complex analysis
- Mandelbroth
- · Replies 2 ·
Graduate A good introductory book on real analysis with examples
- bobby2k
- · Replies 5 ·
Graduate Measure theory question on integrals.
- bolzano
- · Replies 5 ·
Compute Line Integral with Cauchy-Goursat Theorem
- Fernando Revilla
- · Replies 1 ·
Compute Integrals: Integrate (z^3-6z^2+4)dz from -1+i to 1
- asqw121
- · Replies 3 ·
Analytic Function I: Proving f(z)=log z Not Analytic on Domain D w/ γ
- asqw121
- · Replies 3 ·
Analytic Function II: Complex Calculation
- asqw121
- · Replies 3 ·
Graduate Bijections and need of zorn's lemma
- jostpuur
- · Replies 2 ·
Complex logarithm on a multiply connected domain
- Fernando Revilla
- · Replies 1 ·
Graduate How Does the Lax-Milgram Theorem Utilize Continuity and Coercivity?
- muzialis
- · Replies 2 ·
Nonstandard Analysis: Completeness of R via Every Limited Hyperreal
- poissonspot
- · Replies 3 ·
High School Do I need to include reasons in set intersection and union proofs?
- woundedtiger4
- · Replies 3 ·
Graduate Why is an infinite union of open sets open but not closed sets?
- aaaa202
- · Replies 3 ·
Finding conjugates and quotient of complex numbers
- Kris1
- · Replies 12 ·
Graduate What is a finite dimensional l^p space?
- larkin1993
- · Replies 2 ·
Graduate On an intuitive level, density/countability of Q
- johnqwertyful
- · Replies 3 ·
Graduate Q* (the set of rational cuts) has least upper bound property or not?
- saurabhjain
- · Replies 2 ·
Graduate Contradictory (complex) integral transformation
- ManDay
- · Replies 12 ·
Undergrad Why use ≤ instead of < in the limit product proof
- bonfire09
- · Replies 4 ·
Graduate Is f(x) a Contraction Mapping?
- odck111
- · Replies 3 ·
Proving continuity with sequences
- Carla1985
- · Replies 7 ·
Graduate Fourier Series/transform and eigenvalues
- MrAlbot
- · Replies 8 ·
Proving limits and continuity from definitions
- Carla1985
- · Replies 10 ·
Undergrad Is (-1)^x a discontinuous function?
- cp255
- · Replies 3 ·
Undergrad Natural examples of metrics that are not Translation invariant.
- deluks917
- · Replies 1 ·
Graduate Can Dehn Twists Be Applied to Non-Orientable Manifolds Like the Moebius Strip?
- tom.stoer
- · Replies 4 ·
Graduate The Cartesian product theorem for dimension 0
- hedipaldi
- · Replies 2 ·
Graduate Laurent series - where does f(z) need to be holomorphic?
- BruceW
- · Replies 2 ·
Graduate Proof of Continuity of $x^n$ from Pugh's "Real Mathematical Analysis" Chapter 1
- Someone2841
- · Replies 5 ·
Graduate Calculating the density of optimally packed spheres
- IridescentRain
- · Replies 4 ·
Graduate I proving something about my sequence
- Jamin2112
- · Replies 2 ·
Graduate Are the Irrationals and Product Spaces Non-Homeomorphic?
- hedipaldi
- · Replies 8 ·
Undergrad How to prove that Cosh(x) = Cos(ix)
- cocopops12
- · Replies 8 ·
Graduate Functionals->functions of infinite variables?
- HomogenousCow
- · Replies 1 ·
Graduate Quick Chebychev Inequality Question
- Gooolati
- · Replies 14 ·
How Can You Prove Properties of Cells in Lattices Using the Complex Plane?
- pantboio
- · Replies 2 ·
Graduate Real analysis epsilon delta problem
- subsonicman
- · Replies 1 ·
Graduate Looking for Complex Analysis Video Course
- antoan
- · Replies 24 ·
Undergrad Direct proof by using if then technique
- woundedtiger4
- · Replies 10 ·
Graduate Where do equations (3) and (4) come from in this real analysis proof?
- woundedtiger4
- · Replies 7 ·
Graduate Topology problem about Hausdorff space and compactness
- Jaggis
- · Replies 20 ·
Contraction mapping (Maryam Ishfaq's question at Yahoo Answers)
- Fernando Revilla
- · Replies 1 ·
Graduate Can We Show Y=X If Y is a Subspace of X and Y^c is First Category?”
- amirmath
- · Replies 1 ·
Graduate Is Every Continuous Function on an Unbounded Set Uniformly Continuous?
- Bachelier
- · Replies 8 ·
Graduate Bilinear mappings, tensor products and p-summing operators
- Trevor101
- · Replies 4 ·
Graduate Complex (contour indep.) integral of a branched integrand
- ManDay
- · Replies 4 ·
Graduate Construct uncountably dense and holes everywhere
- jostpuur
- · Replies 8 ·
Does a measurable function map measurable sets to measurable sets?
- TheBigBadBen
- · Replies 3 ·
Measurable Function Composition: f∘g
- TheBigBadBen
- · Replies 3 ·
Proving Null Sets: Lebesgue Measure and Lipschitz Functions
- TheBigBadBen
- · Replies 4 ·
Graduate What is the Significance of Completely Regular Spaces?
- friend
- · Replies 125 ·
Graduate Topology of punctured plane vs topology of circle?
- nonequilibrium
- · Replies 4 ·
Graduate What Is the Hausdorff Dimension of \(\mathbb{Y}\)?
- Bachelier
- · Replies 2 ·
Can improper integrals converge without absolute convergence?
- alyafey22
- · Replies 7 ·
Graduate Equation of a line in complex plane
- 4everphysics
- · Replies 3 ·
Does the integral \int^{\infty}_{0} \frac{\log(t) \sin(t) }{t} \, dt converge?
- alyafey22
- · Replies 2 ·
Graduate Confusion with Disconnected sets
- Mr-T
- · Replies 3 ·
Can Gauss Curvature Be Zero on a Genus 2 Surface?
- Poirot1
- · Replies 1 ·
Continuous Example: Weierstrass Function
- Juliayaho
- · Replies 2 ·
Graduate Proving a sequence diverges directly
- shoeburg
- · Replies 2 ·
Proving Lower Bound of $\int_{0}^{ \pi}\sin^{7}(x) \, dx$ is $(\pi/2)^7$
- Juliayaho
- · Replies 2 ·
Graduate Scenarios where the Cauchy-Riemann equations aren't true?
- thehangedman
- · Replies 3 ·
How Do You Differentiate the Modulus of a Complex Number in Riemannian Metrics?
- Poirot1
- · Replies 2 ·
Graduate Proving V is a Vector Space: Simplifying the Process with Axiom Lemma
- Bachelier
- · Replies 3 ·
What is the imaginary part of the given function?
- Poirot1
- · Replies 2 ·
Graduate Show L^p(E) is separable for any measurable E.
- jpriori
- · Replies 4 ·
Troubling contradiction in Functional Analysis
- ModusPonens
- · Replies 1 ·
Homeomorphism Between Q and Unit Sphere in R^3
- Poirot1
- · Replies 9 ·
Graduate Does subsequence notation a_n_m imply m > n?
- gottfried
- · Replies 3 ·
Graduate Rudin's explanation of how rapid the series 1/(n) converges
- DeadOriginal
- · Replies 3 ·
Graduate Spectrum of a linear operator on a Banach space
- AxiomOfChoice
- · Replies 1 ·
Dark Soul's question at Yahoo Answers (Laurent expansion)
- Fernando Revilla
- · Replies 4 ·
Fitting a quadratic to points using least squares
- Juliayaho
- · Replies 8 ·
Graduate How intuitive is the idea of completeness?
- gottfried
- · Replies 20 ·
Graduate Proof: Complex entire function bounded by a monomial is a polynomial
- Taedrin
- · Replies 1 ·
Borel and σ-algebra related question
- Juliayaho
- · Replies 1 ·
Undergrad How to do circular curve fitting?
- srinath1993
- · Replies 2 ·
Graduate Modulus of the difference of two complex numbers
- Fourthkind
- · Replies 5 ·
Undergrad What Does F >= g Mean in a Function Definition?
- jamesb1
- · Replies 2 ·
Graduate Branch cuts and branch points of sums of multi-valued functions
- sponsoredwalk
- · Replies 3 ·
Undergrad Can This Knot Be Identified from Knot Theory?
- Mandelbroth
- · Replies 1 ·
Undergrad Log of i: Can you get logarithms of imaginary numbers?
- theperthvan
- · Replies 11 ·
Graduate Can All Smooth Functions Near Zero Be Expressed by This Double Series?
- Ben Niehoff
- · Replies 1 ·
Graduate Prove that the set of those $c$ is countable
- zeraoulia
- · Replies 2 ·
Convert 7sqrt5 cis(tan−1 (2)) to Rectangular Form - Yahoo! Answers
- MarkFL
- · Replies 1 ·
Graduate Seperable + What Implies Second Countable?
- lugita15
- · Replies 6 ·