What's the relationship of $f$ and $h$ in ${mathbb{E}_i left[ f(g(x,i)) right] = h(mathbb{E}_i left[ g(x,i)...

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What's the relationship of $f$ and $h$ in ${mathbb{E}_i left[ f(g(x,i)) right] = h(mathbb{E}_i left[ g(x,i) right] )}$



The 2019 Stack Overflow Developer Survey Results Are In
Announcing the arrival of Valued Associate #679: Cesar Manara
Planned maintenance scheduled April 17/18, 2019 at 00:00UTC (8:00pm US/Eastern)Characters on $Cleft( mathbb{R}^nright)$Proving that $xmapsto sum_{yin Acapleft(0,xright]}rleft(yright)$ is right-continuousUpdated: Constructing a bijection between $left(-frac{pi}{2}, frac{pi}{2}right]$ and $mathbb{R}$Proving that the set of differentiable functions with $left|f'(t)right|leq K$ is dense in the set of Lipschitz continuous functions?$ J = displaystyleint_0^1 left(left(y'right)^2-a^2y^2right)dx $ and $ J_1= displaystyleint_0^1 left(y' + ay tan bxright)^2dx$Linear combination of the identity and function with nonnegative derivativeHow can I show that $gleft[ a,bright] rightarrow mathbb{R}$ is continuous?Proving $int_A f(x,y) dxdy = left(int_a^b phi(x) dxright)left(int_c^d psi(y) dyright)$Approaching a continuous function with polynomials satisfying $left|P_nleft(xright)-fleft(xright)right|<frac{2}{n}$Solve the ode $W^{prime }left( sright) -2iHleft( sright) Wleft( sright) -1=0$












0












$begingroup$


Let there be a function $f$ and $h$ satisfying



${mathbb{E}_i left[ f(g(x,i)) right] = h(mathbb{E}_i left[ g(x,i) right] )}$



for an arbitrary 2-variable function $g : mathbb{R}^n times mathbb{R} rightarrow mathbb{R}$,



Is it always possible to find a such a function $h$ for given $f$ ?










share|cite|improve this question











$endgroup$












  • $begingroup$
    please clarify what $x$ and $i$ are.
    $endgroup$
    – Cettt
    Mar 22 at 13:48
















0












$begingroup$


Let there be a function $f$ and $h$ satisfying



${mathbb{E}_i left[ f(g(x,i)) right] = h(mathbb{E}_i left[ g(x,i) right] )}$



for an arbitrary 2-variable function $g : mathbb{R}^n times mathbb{R} rightarrow mathbb{R}$,



Is it always possible to find a such a function $h$ for given $f$ ?










share|cite|improve this question











$endgroup$












  • $begingroup$
    please clarify what $x$ and $i$ are.
    $endgroup$
    – Cettt
    Mar 22 at 13:48














0












0








0





$begingroup$


Let there be a function $f$ and $h$ satisfying



${mathbb{E}_i left[ f(g(x,i)) right] = h(mathbb{E}_i left[ g(x,i) right] )}$



for an arbitrary 2-variable function $g : mathbb{R}^n times mathbb{R} rightarrow mathbb{R}$,



Is it always possible to find a such a function $h$ for given $f$ ?










share|cite|improve this question











$endgroup$




Let there be a function $f$ and $h$ satisfying



${mathbb{E}_i left[ f(g(x,i)) right] = h(mathbb{E}_i left[ g(x,i) right] )}$



for an arbitrary 2-variable function $g : mathbb{R}^n times mathbb{R} rightarrow mathbb{R}$,



Is it always possible to find a such a function $h$ for given $f$ ?







integration analysis






share|cite|improve this question















share|cite|improve this question













share|cite|improve this question




share|cite|improve this question








edited Mar 22 at 13:52







Junho

















asked Mar 22 at 13:45









JunhoJunho

115




115












  • $begingroup$
    please clarify what $x$ and $i$ are.
    $endgroup$
    – Cettt
    Mar 22 at 13:48


















  • $begingroup$
    please clarify what $x$ and $i$ are.
    $endgroup$
    – Cettt
    Mar 22 at 13:48
















$begingroup$
please clarify what $x$ and $i$ are.
$endgroup$
– Cettt
Mar 22 at 13:48




$begingroup$
please clarify what $x$ and $i$ are.
$endgroup$
– Cettt
Mar 22 at 13:48










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