martini
Reputation
58,264
88/100 score
 Apr 22 answered Given a normed space $X$ and $A:X\to\mathbb R$, how can I compute the second Fréchet derivative of $f(t):=A(x_0+th)$ for some $x_0,h\in X$? Apr 1 answered Intersection of nested compact sets in a Hausdorff space Apr 1 answered How many numbers are possible from $a^x b^y c^z$? Apr 1 answered $x$ and $f(x)$ are linear dependent then $f(x) = kx$. Mar 30 answered Differentiating between standard and non-standard interpretations of 'less than' relation Mar 24 answered Quotients of $L_1$ Mar 24 answered Show $\sum_{k=1}^\infty \frac{k^2}{k!} = 2\mathrm{e}$ Mar 23 answered Hölder space continuously embeds into $L^2$ space? Mar 23 answered Prove the function is a homeomorphism. Mar 23 answered Prove that $\lim_{x\to\infty} \frac{1}{x}\int_0^xf(t)dt$ exists and find it, where $f(t)$ is an alternating function. Mar 23 answered Different limits convergence L2 and a.s. Mar 23 answered How To differentiate this integral Mar 23 answered Can you give example of unbounded sequence with convergent subsequence? Mar 23 answered How to prove that $\max(\min(g,M),-M)$ is close to $f$, given $g$ is close to $f$ Mar 23 answered Norm of the Dual Transform = Norm of the Transform? Mar 22 answered Verifying if a function is a.e. equal to a continuous function then it is continuous a.e. Mar 22 answered Find $b$ such that $\log_b(x)$ and $\log_b(y)$ are integers. Mar 22 answered Exercise on separable Hilbert spaces and orthonormal system Mar 22 answered convolution: how can I show that $(y*f)'(t) = (y'*f)(t) + y(0)f(t)$ Mar 22 answered $\sum_n |x_n||y_n| < \infty$ for all $(x_n) \in l^3$ implies $(y_n) \in l^{3/2}$