user avatar
user avatar
user avatar
Saeed
  • Member for 4 years, 8 months
  • Last seen more than a week ago
2 votes

What is the relation between a Banach space and a Hilbert space?

2 votes

How can I prove the function is convex?

1 vote
Accepted

Calculare the mean of $X^2$

1 vote
Accepted

Why monotonicity of the gradient implies the directional derivative is increasing

1 vote
Accepted

A bounded sequence with one accumulation point converges (rigorous proof)

1 vote
Accepted

Lower bound on the difference of perturbed functions

1 vote

Summation of polynomial matrix multiplication in terms of vector outer product

1 vote
Accepted

How to show when $V$ is a vector space, $V-V=V$.

1 vote

Show that $x^*$ is minimizer of the function over $C$ if $x^*=\prod_C (x^*- \gamma \nabla f(x^*))$.

1 vote
Accepted

Show that $C \subseteq D$ only if $\sigma_C(x) \leq \sigma_D(x)$ $\forall x \in \mathbb{R}^n$

1 vote
Accepted

How to show $x_* \in R(A^T) +z $ is the global minimizer of $\min \frac{1}{2}\|x-z\|_2^2$ over $Ax=b$?

1 vote
Accepted

How can we decompose the identity matrix given a set of orthonormal vectors?

0 votes

How to show two different definitions of $\alpha$-strongly convex are equivalent?

0 votes

What is the condition of invertibility of $ \left( {I + {F^{ - 1}}\Delta F} \right) $?

0 votes

Show that supremum of over a bounded set is continuous.