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| bio | website | dean.clas.uconn.edu/… |
|---|---|---|
| location | Storrs, CT | |
| age | ||
| visits | member for | 11 months |
| seen | Jan 16 at 2:27 | |
| stats | profile views | 29 |
I am Dean of the College of Liberal Arts and Sciences at the University of Connecticut and a mathematician.
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Jan 11 |
awarded | Necromancer |
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Sep 22 |
answered | Mathematics and musical instruments |
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Sep 4 |
awarded | Commentator |
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Sep 4 |
comment |
Product of fractional ideals That certainly makes a big difference! |
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Sep 3 |
comment |
when do two rational elliptic curves have identical size when reduced mod $p$ for all primes $p$? @Harry: You are fishing in deep waters. In general two elliptic curves E and E' defined over a field k might be isogenous over an extension field but not over k. (In fact, E and E' might be isomorphic over an extension field but not over k). But to answer your narrower question, yes, Cremona's tables classify elliptic curves up to Q-isogeny. |
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Sep 3 |
comment |
when do two rational elliptic curves have identical size when reduced mod $p$ for all primes $p$? Regarding the Cremona Tables, I went here:homepages.warwick.ac.uk/~masgaj/ftp/data and downloaded the list of conductors up to 1000. Then I just searched the list for the interesting numbers in your equations: 208 and 1256. That found the curves right away. |
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Sep 3 |
revised |
Product of fractional ideals deleted 2 characters in body |
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Sep 3 |
awarded | Editor |
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Sep 3 |
revised |
Product of fractional ideals Tiny correction. |
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Sep 3 |
answered | Product of fractional ideals |
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Sep 2 |
comment |
when do two rational elliptic curves have identical size when reduced mod $p$ for all primes $p$? You probably knew this, but these are the two curves c1 and c2 of level 75 in Cremona's tables. So one way to see that they are isogenous is just to look them up. |
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Sep 2 |
awarded | Scholar |
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Sep 2 |
accepted | A question about composition of functions |
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Sep 2 |
comment |
What is the Inverse function of $f(x)=192x-16x^2$? I'm trying to see if I can get my Calc students to use this site as a resource. |
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Sep 2 |
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What is the Inverse function of $f(x)=192x-16x^2$? Hi Jonathan! This originated in my calculus class here at UConn. Thanks for the consultation. |
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Sep 2 |
answered | What is the Inverse function of $f(x)=192x-16x^2$? |
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Sep 2 |
comment |
A question about composition of functions The question as posed is exactly as it was asked to me. f^{-1}(x) is the inverse function to f(x). |
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Sep 2 |
comment |
A question about composition of functions Only if absolutely necessary :) |
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Sep 2 |
awarded | Student |
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Sep 2 |
comment |
A question about composition of functions I am trying to show my calculus class how to use stackexchange. |
