User Giorgio Pastasciutta

5 votes

1 answer

397 views

$1$D mass-spring chain leading to a 'discrete ODE' in space

asked Jul 12, 2021 at 16:03

3 votes

2 answers

263 views

Null convolution

asked Jul 9, 2021 at 16:29

2 votes

0 answers

61 views

Enter a functional with Lagrangian multiplers

asked Jun 9, 2019 at 22:03

2 votes

1 answer

113 views

Show that minimizing $Tr(Q)$ equals minimizing $x_0^{T}\:Q\:x_0$

asked Apr 3, 2019 at 15:39

1 vote

3 answers

212 views

if $dU=TdS-PdV$ then $U=U(S,V)$ - rigorous proof?

asked May 11, 2020 at 21:04

1 vote

0 answers

81 views

Kalman filter: Bayesian derivation, can $E(X_t\mid \{y\}_1^t)=arg\,\underset{x_t}{max}\;P(X_t=x_t\mid \{y\}_1^t)$?

asked Nov 17, 2019 at 22:44

1 vote

0 answers

75 views

Trouble 'reversing' $\frac{dv(t)}{dt}=L\,\frac{d^2i(t)}{dt^2}+R\,\frac{di(t)}{dt}+\frac{1}{C}\,i(t)$

asked Sep 17, 2021 at 17:03

0 votes

1 answer

88 views

Linear system of ODEs - about the comparison of different solution methods

asked Jul 10, 2021 at 21:27

0 votes

0 answers

130 views

Can we prove separation of variables applies beforehand (w/o involving BCs)?

asked Aug 22, 2021 at 21:18

0 votes

1 answer

47 views

Is this passage correct?

asked Dec 12, 2019 at 21:46

0 votes

1 answer

57 views

Sufficient conditions to show $\mathbf{A}=\mathbf{B}$, using vector identities [closed]

asked Feb 1, 2020 at 15:31

0 votes

1 answer

30 views

Integration of some two-variables differential (quadratic polynomial) - apparent absurdum

asked Jun 7, 2020 at 13:34

0 votes

0 answers

78 views

Existence and uniqueness for 2nd-order linear PDE

asked Jul 9, 2021 at 15:49

0 votes

0 answers

49 views

'Half-sifting' of Dirac Delta

asked Apr 7, 2019 at 2:26

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14 Questions

$1$D mass-spring chain leading to a 'discrete ODE' in space

Null convolution

Enter a functional with Lagrangian multiplers

Show that minimizing $Tr(Q)$ equals minimizing $x_0^{T}\:Q\:x_0$

if $dU=TdS-PdV$ then $U=U(S,V)$ - rigorous proof?

Kalman filter: Bayesian derivation, can $E(X_t\mid \{y\}_1^t)=arg\,\underset{x_t}{max}\;P(X_t=x_t\mid \{y\}_1^t)$?

Trouble 'reversing' $\frac{dv(t)}{dt}=L\,\frac{d^2i(t)}{dt^2}+R\,\frac{di(t)}{dt}+\frac{1}{C}\,i(t)$

Linear system of ODEs - about the comparison of different solution methods

Can we prove separation of variables applies beforehand (w/o involving BCs)?

Is this passage correct?

Sufficient conditions to show $\mathbf{A}=\mathbf{B}$, using vector identities [closed]

Integration of some two-variables differential (quadratic polynomial) - apparent absurdum

Existence and uniqueness for 2nd-order linear PDE

'Half-sifting' of Dirac Delta