# Tagged Questions

Special functions, orthogonal polynomials, harmonic analysis, ordinary differential equations (ODE's), differential relations, calculus of variations, approximations, expansions, asymptotics.

**-1**

**0**answers

### On Compactness in $M_{b}(\Omega)$

**5**

**2**answers

### asymptotic for li(x)-Ri(x)

**6**

**1**answer

### Dominated convergence 2.0?

**0**

**0**answers

### Derivative of the flow with respect to initial time

**1**

**0**answers

### Linear dependence of solution?

**3**

**2**answers

### Prove $\int_0^{\infty}{\frac{1}{e^{sx}\sqrt{1+s^2}}}ds < \arctan\left(\frac1x\right),\quad\forall x\ge1$

**4**

**1**answer

### Convergence of a real sequence (stochastic approximation)

**1**

**2**answers

### Fourier transform of a generalized function on the plane

**4**

**0**answers

### Sobolev space under Mellin transform

**-4**

**1**answer

### Hamiltonian functions [closed]

**8**

**2**answers

### Hölder continuity for operators

**3**

**0**answers

### Wavefront set and Duhamel's principle

**7**

**1**answer

### Proof of Green's formula for rectifiable Jordan curves

**11**

**1**answer

### Nonlinear Schrödinger equation with discrete Laplacian

**0**

**1**answer

### Harnack inequality for fractional laplacian

**1**

**2**answers

### One inequality connected with the linear second order ODE

**4**

**1**answer

### Extension by harmonics

**11**

**1**answer

### A recursive formula

**-1**

**1**answer

### A smooth curve and mean value theorem

**2**

**0**answers

### Solvability of Neumann boundary problems with singular boundary data $g \in (H^{1})^{*}$

**16**

**1**answer

### Differential equation changing sign almost everywhere

**0**

**0**answers

### Estimation of the integral $\int_a^b e^{2\pi i f(x)} dx $

**16**

**2**answers

### Existence of an antiderivative function on an arbitrary subset of $\mathbb{R}$

**1**

**1**answer

### An equation in Gamma function has at most (n-1) positive solutions

**9**

**2**answers

### Prove that the matrix $[\Gamma(\lambda_{i}+\mu_{j})]$ is nonsingular

**2**

**2**answers

### Projection of a ball in the ambient space to a manifold

**6**

**1**answer

### (In)stability of a two-dimensional dynamical system

**2**

**0**answers

### A question about whether an operator can be lipschitz or not

**3**

**0**answers

### Fenchel conjugate on a Hadamard manifold

**1**

**1**answer

### Behaviour of solutions to $(A-r)f=0$ in the limit $r \to \infty$

**10**

**2**answers

### $x f'$ bounded by $x^2f $ and $f''$?

**12**

**0**answers

### Profiles of very high dimensional functions

**8**

**1**answer

### Bi-Lipschitz extension

**3**

**0**answers

### Can continuity always be shown by using ε-δ? [closed]

**25**

**1**answer

### Lindelöf hypothesis claim

**4**

**1**answer

### $\sum_{k=1}^n\frac{\sin kx}{k^\alpha} >0\quad\text{for all}\ n=1,2,3,\ldots\ \text{and}\ 0<x<\pi, \text{and}\ \alpha \ge 1$

**0**

**0**answers

### Classical solution of one dimensional Parabolic equation and a priori estimates

**4**

**1**answer

### Symplectic forms and sign of eigenvalues

**10**

**1**answer

### Asymptotic behavior of an integral depending on an integer

**1**

**0**answers

### Conditions for Poisson summation (for discontinuous functions)

**0**

**0**answers

### the enumeration of 2 dimensional lattice walks with fixed number steps and largest distance from the end point ti the origin

**13**

**1**answer

### A question on the sine function

**5**

**0**answers

### Computing (formally or numerically) Green's function for the wave equation on a sphere

**0**

**1**answer

### Corner integrals of $\exp$

**4**

**2**answers

### Invariance of an integral over SO(3) under permutation of parameters

**1**

**0**answers

### density of fractal measures

**2**

**1**answer

### Lipschitz bound on semigroups

**0**

**2**answers

### Generalization of a proposition on vector analysis [closed]

**1**

**2**answers

### Confluent Heun Equation

**2**

**0**answers