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Let E is an elliptic curve on a field of charesteristic 101 , phi1 is an isogeny of E to E1 and phi2 is an isogeny of E1 to E2 , if phi=phi2*phi1, how can i get rational maps of composed isogeny phi using sage software?

f = phi3 * phi2 * phi f.rational_maps() error: 'sage.categories.map.FormalCompositeMap' object has no attribute 'rational_maps'

Let E is an elliptic curve on a field of charesteristic 101 , phi1 is an isogeny of E to E1 and phi2 is an isogeny of E1 to E2 , if phi=phi2*phi1, how can i get rational maps of composed isogeny phi using sage software?

Suppose

$E$ is an elliptic curve on a field of charesteristic 101,
$\phi_1$ an isogeny of $E$ to $E_1$
$\phi_2$ an isogeny of $E_1$ to $E_2$,
$\phi = phi_2*phi_1$.

How can i get rational maps of the composed isogeny $\phi$ using Sage?

I tried:

f = phi3 * phi2 * phi 
f.rational_maps()
error:

error:

'sage.categories.map.FormalCompositeMap' object has no attribute 'rational_maps''rational_maps'

Let E is an elliptic curve on a field of charesteristic 101 , phi1 is an isogeny of E to E1 and phi2 is an isogeny of E1 to E2 , if phi=phi2*phi1, how can i get rational maps of composed isogeny phi using sage software?

Suppose

$E$ is an elliptic curve on a field of charesteristic 101,
$\phi_1$ an isogeny of $E$ to $E_1$
$\phi_2$ an isogeny of $E_1$ to $E_2$,
$\phi = phi_2*phi_1$.

How can i get rational maps of the composed isogeny $\phi$ using Sage?

I tried:

f = phi3 * phi2 * phi 
f.rational_maps()

error:

'sage.categories.map.FormalCompositeMap' object has no attribute 'rational_maps'

Let E is an elliptic curve on a field of charesteristic 101 , phi1 is an isogeny of E to E1 and phi2 is an isogeny of E1 to E2 , if phi=phi2*phi1, how can i get rational maps of composed isogeny phi using sage software?

Suppose

$E$ is an elliptic curve on a field of charesteristic 101,
$\phi_1$ an isogeny of $E$ to $E_1$
$\phi_2$ an isogeny of $E_1$ to $E_2$,
$\phi = phi_2*phi_1$.

How can i get rational maps of the composed isogeny $\phi$ using Sage?

I tried:

f = phi3 * phi2 * phi 
f.rational_maps()

error:

'sage.categories.map.FormalCompositeMap' object has no attribute 'rational_maps'

Let E is an elliptic curve on Rational maps for a field of charesteristic 101 , phi1 is an isogeny of E to E1 and phi2 is an isogeny of E1 to E2 , if phi=phi2*phi1, how can i get rational maps of composed isogeny phi using sage software?isogeny

Suppose

$E$ is an elliptic curve on a field of charesteristic 101,
$\phi_1$ an isogeny of $E$ to $E_1$
$\phi_2$ an isogeny of $E_1$ to $E_2$,
$\phi = ~~phi_2*phi_1$.~~\phi_2*\phi_1$.

How can i get rational maps of the composed isogeny $\phi$ using Sage?

I tried:

f = phi3 * phi2 * phi 
f.rational_maps()

error:

'sage.categories.map.FormalCompositeMap' object has no attribute 'rational_maps'

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