main -> dev

lmfdb/elliptic_curves/elliptic_curve.py

@@ -994,13 +994,13 @@ def render_bhkssw():
     learnmore = learnmore_list_remove('BHKSSW dataset')
     t = 'Balakrishnan-Ho-Kaplan-Spicer-Stein-Watkins elliptic curve database'
     bread = [("Datasets", url_for("datasets")), ("BHKSSW dataset", " ")]
-    if 'filename' in info:
-        filepath = os.path.join(os.path.expanduser('~/data/bhkssw_ecdb/' + info['filename']))
-        if os.path.isfile(filepath) and os.access(filepath, os.R_OK):
-            return send_file(filepath, as_attachment=True)
-        else:
-            flash_error('File {} not found'.format(info['filename']))
-            return redirect(url_for(".render_bhkssw"))
+    #if 'filename' in info:
+    #    filepath = os.path.join(os.path.expanduser('~/data/bhkssw_ecdb/' + info['filename']))
+    #    if os.path.isfile(filepath) and os.access(filepath, os.R_OK):
+    #        return send_file(filepath, as_attachment=True)
+    #    else:
+    #        flash_error('File {} not found'.format(info['filename']))
+    #        return redirect(url_for(".render_bhkssw"))
     # This format was nice, but not possible with the 30-second timeout limitation
     #info['files'] = [ # number of curves, size in MB, lower bound, upper bound, filename
     #    (2249362, 151, "0", r"1 \cdot 10^8", "1e8db.txt"),

lmfdb/elliptic_curves/templates/bhkssw.html

@@ -9,7 +9,7 @@
 <h3>File and data format</h3>
 
 <p>
-  The data is stored in text files, indexed from $k=0$ to $k=2699$.  The file $k$.txt contains all of the elliptic curves whose minimal short Weierstrass form $y^2 = x^3 + A x + B$ has naive height $H$ in the range: the $k$th file contains data for $k \cdot 10^7 < H \le (k+1) \cdot 10^7$.
+  The data is stored in text files, indexed from $k=0$ to $k=2699$.  The file $k$.txt contains data for elliptic curves $y^2 = x^3 + A x + B$ with $k \cdot 10^7 < H \le (k+1) \cdot 10^7$, where $H:=\max(4|A|^3,27B^2)$.
 </p>
 
 <p>

lmfdb/elliptic_curves/templates/sw_ecdb.html

@@ -3,13 +3,13 @@
 {% block content %}
 
 <p>
-  This dataset contains 136,924,520 {{KNOWL('ec.q', 'elliptic curves')}} over $\Q$ with {{ KNOWL('ec.q.conductor', 'conductor') }} up to $10^8$, divided into 115,821,258 {{KNOWL('ec.isogeny_class', 'isogeny classes')}}.  It also contains 11,378,911 elliptic curves with prime conductor up to $10^{10}$, divided into 11,372,286 isogeny classes.  Note that not curves are included within these conductor ranges; see <a href="https://doi.org/10.1007/3-540-45455-1_22">SStein-Watkins</a> for more details.
+  This dataset contains 136,924,520 {{KNOWL('ec.q', 'elliptic curves')}} over $\Q$ with {{ KNOWL('ec.q.conductor', 'conductor') }} up to $10^8$, divided into 115,821,258 {{KNOWL('ec.isogeny_class', 'isogeny classes')}}.  It also contains 11,378,911 elliptic curves with prime conductor up to $10^{10}$, divided into 11,372,286 isogeny classes.  Not every curve satisfying these conductor bounds is present in this dataset, only those that satisfy additional bounds on the discriminant and coefficients are included; see <a href="https://doi.org/10.1007/3-540-45455-1_22">Stein-Watkins</a> for details.
 </p>
 
 <h3>File and data format</h3>
 
 <p>
-  The data for conductors $N$ up to $10^8$ is stored in 1000 text files, indexed from $k=0$ to $k=999$.  The $k$th file contains data for $k \cdot 10^5 < N \le (k+1) \cdot 10^5$.  Similarly, the data for prime conductors $p$ up to $10^{10}$ is stored in 100 text files, indexed from $k=0$ to $k=99$.  The $k$th file contains data for $k \cdot 10^8 < p \le (k+1) \cdot 10^8$.
+  The data for conductors $N\le 10^8$ is stored in 1000 text files, indexed from $k=0$ to $k=999$, where the $k$th file contains data for $k \cdot 10^5 < N \le (k+1) \cdot 10^5$.  Similarly, the data for prime conductors $p\le 10^{10}$ is stored in 100 text files, indexed from $k=0$ to $k=99$, where the $k$th file contains data for $k \cdot 10^8 < p \le (k+1) \cdot 10^8$.
 </p>
 
 <p>