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Lilla's user avatar
Lilla's user avatar
Lilla
  • Member for 6 years, 1 month
  • Last seen more than a week ago
5 votes

Proper definition of a function

5 votes

Dimension of $\Bbb{R^{\infty}}$

3 votes
Accepted

Vector space of a matrix

3 votes

Regularity of function in the Sobolev space $H^1(\mathbb{R})$

2 votes
Accepted

if $u \in C([0,T]; H^{1}(\Omega)$ then $\partial_{x} u \in$?

2 votes

Are probability density functions nondecreasing?

2 votes
Accepted

Proving $\|x\|_{\infty}\leq\|x\|_2\leq\sqrt{n}\|x\|_{\infty}$

2 votes
Accepted

Lee's Proof of Seifert–Van Kampen

2 votes
Accepted

Multivariate function convexity example

2 votes
Accepted

Interprettion of Gradient of $f(x,y)=x$

2 votes
Accepted

Prove that the dot product map between a vector space and its dual is a linear isomorphism

1 vote

Proper vector notation

1 vote
Accepted

Functional calculus for compact operators using singular value decomposition and regularisation filters

1 vote

Application of chain rule, and some recursion

1 vote
Accepted

Prove that such number $C$ exists..

1 vote
Accepted

Is this proof that $0\cdot{\bar{v}} = \textbf{0}$, for any vector $\bar{v} \in V$ incorrect?

1 vote
Accepted

derivation of the standard normal loss function to an algebraic form

1 vote

Calculate the integral: $\int_0^{1}\int_0^{\sqrt{1-x^2}}(x^2+y^2)^3dxdy$

1 vote
Accepted

Boundedness of a linear functional with a parameter

1 vote
Accepted

The FONC and the optimal step size $\alpha_k$. Help me with the intuition please

1 vote

principal eigenvalue in infinite dimensions

1 vote

Gradient is both perpendicular to the curve but also direction of steepest ascent?

1 vote
Accepted

Continuous function between functions

1 vote
Accepted

Bounded in $R$ equal to say bounded in every area of $a$?

1 vote

Product of 2 bounded sequences is a bounded sequence

1 vote
Accepted

find the global minimum

1 vote

Unit-speed Reparametrization of a circle

1 vote
Accepted

Prove a matrix equality

1 vote
Accepted

Deriving Adams-Moulton 2 step method with variable step size

1 vote

Prove that is the minimum of a function