Пример #1
0
def search(info, query):
    parse_ints(info, query, 'level', name='Level')
    parse_ints(info, query, 'weight', name='Weight')
    parse_character(info, query, 'character', name='Character')
    parse_floats(info, query, 'spectral_parameter', name='Spectral parameter')
    if info.get('symmetry'):
        query['symmetry'] = int(info['symmetry'])
Пример #2
0
def number_field_search(info, query):
    parse_ints(info,query,'degree')
    parse_galgrp(info,query, qfield=('degree', 'galt'))
    parse_bracketed_posints(info,query,'signature',qfield=('degree','r2'),exactlength=2,extractor=lambda L: (L[0]+2*L[1],L[1]))
    parse_signed_ints(info,query,'discriminant',qfield=('disc_sign','disc_abs'))
    parse_floats(info, query, 'rd')
    parse_floats(info, query, 'regulator')
    parse_ints(info,query,'class_number')
    parse_ints(info,query,'num_ram')
    parse_bool(info,query,'cm_field',qfield='cm')
    parse_bracketed_posints(info,query,'class_group',check_divisibility='increasing',process=int)
    parse_primes(info,query,'ur_primes',name='Unramified primes',
                 qfield='ramps',mode='complement')
    # modes are now contained (in), exactly, include
    if 'ram_quantifier' in info and str(info['ram_quantifier']) == 'include':
        mode='append'
    elif 'ram_quantifier' in info and str(info['ram_quantifier']) == 'contained':
        mode='subsets'
    else:
        mode='exact'
    parse_primes(info,query,'ram_primes',name='Ramified primes',
                 qfield='ramps',mode=mode,radical='disc_rad')
    ## This seems not to be used
    #if 'lucky' in info:
    #    label = db.nf_fields.lucky(query, 0)
    #    if label:
    #        return redirect(url_for(".by_label", label=clean_input(label)))
    info['wnf'] = WebNumberField.from_data
    info['gg_display'] = group_pretty_and_nTj
Пример #3
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def number_field_search(info, query):
    parse_ints(info,query,'degree')
    parse_galgrp(info,query, qfield=('degree', 'galt'))
    parse_bracketed_posints(info,query,'signature',qfield=('degree','r2'),exactlength=2,extractor=lambda L: (L[0]+2*L[1],L[1]))
    parse_signed_ints(info,query,'discriminant',qfield=('disc_sign','disc_abs'))
    parse_floats(info, query, 'rd')
    parse_ints(info,query,'class_number')
    parse_bool(info,query,'cm_field',qfield='cm')
    parse_bracketed_posints(info,query,'class_group',check_divisibility='increasing',process=int)
    parse_primes(info,query,'ur_primes',name='Unramified primes',
                 qfield='ramps',mode='complement')
    # modes are now contained (in), exactly, include
    if 'ram_quantifier' in info and str(info['ram_quantifier']) == 'include':
        mode='append'
    elif 'ram_quantifier' in info and str(info['ram_quantifier']) == 'contained':
        mode='subsets'
    else:
        mode='exact'
    parse_primes(info,query,'ram_primes',name='Ramified primes',
                 qfield='ramps',mode=mode,radical='disc_rad')
    ## This seems not to be used
    #if 'lucky' in info:
    #    label = db.nf_fields.lucky(query, 0)
    #    if label:
    #        return redirect(url_for(".by_label", label=clean_input(label)))
    info['wnf'] = WebNumberField.from_data
    info['gg_display'] = group_pretty_and_nTj
Пример #4
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def search(info, query):
    parse_ints(info, query, 'level', name='Level')
    parse_ints(info, query, 'weight', name='Weight')
    parse_character(info, query, 'character', name='Character')
    parse_floats(info, query, 'spectral_parameter', name='Spectral parameter', allow_singletons=True)
    if info.get('symmetry'):
        query['symmetry'] = int(info['symmetry'])
    query['__sort__'] = ['level', 'weight', 'conrey_index', 'spectral_parameter']
Пример #5
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def number_field_search(info, query):
    parse_ints(info, query, 'degree')
    parse_galgrp(info, query, qfield=('galois_label', 'degree'))
    parse_bracketed_posints(info,
                            query,
                            'signature',
                            qfield=('degree', 'r2'),
                            exactlength=2,
                            allow0=True,
                            extractor=lambda L: (L[0] + 2 * L[1], L[1]))
    parse_signed_ints(info,
                      query,
                      'discriminant',
                      qfield=('disc_sign', 'disc_abs'))
    parse_floats(info, query, 'rd')
    parse_floats(info, query, 'regulator')
    parse_ints(info, query, 'class_number')
    parse_ints(info, query, 'num_ram')
    parse_bool(info, query, 'cm_field', qfield='cm')
    parse_bool(info, query, 'is_galois')
    parse_bracketed_posints(info,
                            query,
                            'class_group',
                            check_divisibility='increasing',
                            process=int)
    parse_primes(info,
                 query,
                 'ur_primes',
                 name='Unramified primes',
                 qfield='ramps',
                 mode='exclude')
    parse_primes(info,
                 query,
                 'ram_primes',
                 name='Ramified primes',
                 qfield='ramps',
                 mode=info.get('ram_quantifier'),
                 radical='disc_rad')
    parse_subfield(info,
                   query,
                   'subfield',
                   qfield='subfields',
                   name='Intermediate field')
    parse_padicfields(info,
                      query,
                      'completions',
                      qfield='local_algs',
                      name='$p$-adic completions')
    info['wnf'] = WebNumberField.from_data
    info['gg_display'] = group_pretty_and_nTj
Пример #6
0
def elliptic_curve_search(info, query):
    parse_rational(info,query,'jinv','j-invariant')
    parse_ints(info,query,'conductor')
    parse_ints(info,query,'torsion','torsion order')
    parse_ints(info,query,'rank')
    parse_ints(info,query,'sha','analytic order of Ш')
    parse_ints(info,query,'num_int_pts','num_int_pts')
    parse_floats(info,query,'regulator','regulator')
    parse_bool(info,query,'semistable','semistable')
    parse_bracketed_posints(info,query,'torsion_structure',maxlength=2,check_divisibility='increasing')
    # speed up slow torsion_structure searches by also setting torsion
    #if 'torsion_structure' in query and not 'torsion' in query:
    #    query['torsion'] = reduce(mul,[int(n) for n in query['torsion_structure']],1)
    if 'include_cm' in info:
        if info['include_cm'] == 'exclude':
            query['cm'] = 0
        elif info['include_cm'] == 'only':
            query['cm'] = {'$ne' : 0}
    #parse_ints(info,query,field='cm_disc',qfield='cm')
    if 'cm_disc' in info:
        query['cm'] = info['cm_disc']
    parse_element_of(info,query,field='isodeg',qfield='isogeny_degrees',split_interval=1000)
    #parse_ints(info,query,field='isodeg',qfield='isogeny_degrees')
    parse_primes(info, query, 'surj_primes', name='maximal primes',
                 qfield='nonmax_primes', mode='exclude')
    parse_primes(info, query, 'nonsurj_primes', name='non-maximal primes',
                 qfield='nonmax_primes',mode=info.get('surj_quantifier'), radical='nonmax_rad')
    parse_primes(info, query, 'bad_primes', name='bad primes',
                 qfield='bad_primes',mode=info.get('bad_quantifier'))
    # The button which used to be labelled Optimal only no/yes"
    # (default no) has been renamed "Curves per isogeny class all/one"
    # (default one) but the only change in behavious is that we no
    # longer treat class 990h (where the optial curve is #3 not #1) as
    # special: the "one" option just restricts to curves whose
    # 'number' is 1.
    if 'optimal' in info and info['optimal'] == 'on':
        query.update({'number':1})

        # Old behaviour was as follows:
        # For all isogeny classes except 990h the optimal curve is number 1, while for class 990h it is number 3.
        # So setting query['number'] = 1 is nearly correct, but fails on 990h3.
        # Instead, we use this more complicated query:
        # query.update({"$or":[{'iso':'990h', 'number':3}, {'iso':{'$ne':'990h'},'number':1}]})

    info['curve_ainvs'] = lambda dbc: str([ZZ(ai) for ai in dbc['ainvs']])
    info['curve_url_LMFDB'] = lambda dbc: url_for(".by_triple_label", conductor=dbc['conductor'], iso_label=split_lmfdb_label(dbc['lmfdb_iso'])[1], number=dbc['lmfdb_number'])
    info['iso_url_LMFDB'] = lambda dbc: url_for(".by_double_iso_label", conductor=dbc['conductor'], iso_label=split_lmfdb_label(dbc['lmfdb_iso'])[1])
    info['curve_url_Cremona'] = lambda dbc: url_for(".by_ec_label", label=dbc['label'])
    info['iso_url_Cremona'] = lambda dbc: url_for(".by_ec_label", label=dbc['iso'])
Пример #7
0
def elliptic_curve_search(info, query):
    parse_rational_to_list(info,query,'jinv','j-invariant')
    parse_ints(info,query,'conductor')
    parse_ints(info,query,'torsion','torsion order')
    parse_ints(info,query,'rank')
    parse_ints(info,query,'sha','analytic order of Ш')
    parse_ints(info,query,'num_int_pts','num_int_pts')
    parse_ints(info,query,'class_size','class_size')
    parse_ints(info,query,'class_deg','class_deg')
    parse_floats(info,query,'regulator','regulator')
    parse_bool(info,query,'semistable','semistable')
    parse_bool(info,query,'potential_good_reduction','potential_good_reduction')
    parse_bracketed_posints(info,query,'torsion_structure',maxlength=2,check_divisibility='increasing')
    # speed up slow torsion_structure searches by also setting torsion
    #if 'torsion_structure' in query and not 'torsion' in query:
    #    query['torsion'] = reduce(mul,[int(n) for n in query['torsion_structure']],1)
    if 'include_cm' in info:
        if info['include_cm'] == 'exclude':
            query['cm'] = 0
        elif info['include_cm'] == 'only':
            query['cm'] = {'$ne' : 0}
    parse_ints(info,query,field='cm_disc',qfield='cm')
    parse_element_of(info,query,'isogeny_degrees',split_interval=1000,contained_in=get_stats().isogeny_degrees)
    parse_primes(info, query, 'surj_primes', name='maximal primes',
                 qfield='nonmax_primes', mode='exclude')
    parse_primes(info, query, 'nonsurj_primes', name='non-maximal primes',
                 qfield='nonmax_primes',mode=info.get('surj_quantifier'), radical='nonmax_rad')
    parse_primes(info, query, 'bad_primes', name='bad primes',
                 qfield='bad_primes',mode=info.get('bad_quantifier'))
    parse_primes(info, query, 'sha_primes', name='sha primes',
                 qfield='sha_primes',mode=info.get('sha_quantifier'))
    # The button which used to be labelled Optimal only no/yes"
    # (default: no) has been renamed "Curves per isogeny class
    # all/one" (default: all).  When this option is "one" we only list
    # one curve in each class, currently choosing the curve with
    # minimal Faltings heights, which is conjecturally the
    # Gamma_1(N)-optimal curve.
    if 'optimal' in info and info['optimal'] == 'on':
        query.update({'lmfdb_number':1})

    info['curve_ainvs'] = lambda dbc: str([ZZ(ai) for ai in dbc['ainvs']])
    info['curve_url_LMFDB'] = lambda dbc: url_for(".by_triple_label", conductor=dbc['conductor'], iso_label=split_lmfdb_label(dbc['lmfdb_iso'])[1], number=dbc['lmfdb_number'])
    info['iso_url_LMFDB'] = lambda dbc: url_for(".by_double_iso_label", conductor=dbc['conductor'], iso_label=split_lmfdb_label(dbc['lmfdb_iso'])[1])
    info['cremona_bound'] = CREMONA_BOUND
    info['curve_url_Cremona'] = lambda dbc: url_for(".by_ec_label", label=dbc['Clabel'])
    info['iso_url_Cremona'] = lambda dbc: url_for(".by_ec_label", label=dbc['Ciso'])
Пример #8
0
def elliptic_curve_search(info, query):
    parse_nf_string(info,
                    query,
                    'field',
                    name="base number field",
                    qfield='field_label')
    if query.get('field_label') == '1.1.1.1':
        return redirect(url_for("ec.rational_elliptic_curves", **request.args),
                        301)

    parse_ints(info, query, 'conductor_norm')
    parse_noop(info, query, 'conductor_label')
    parse_ints(info, query, 'rank')
    parse_ints(info,
               query,
               'torsion',
               name='Torsion order',
               qfield='torsion_order')
    parse_bracketed_posints(info, query, 'torsion_structure', maxlength=2)
    if 'torsion_structure' in query and 'torsion_order' not in query:
        t_o = 1
        for n in query['torsion_structure']:
            t_o *= int(n)
        query['torsion_order'] = t_o
    parse_element_of(info,
                     query,
                     'isodeg',
                     split_interval=1000,
                     contained_in=ECNF_stats().isogeny_degrees)
    parse_bool(info, query, 'semistable', 'semistable')
    parse_bool(info, query, 'potential_good_reduction',
               'potential_good_reduction')
    parse_ints(info, query, 'class_size', 'class_size')
    parse_ints(info, query, 'class_deg', 'class_deg')
    parse_ints(info, query, 'sha', 'analytic order of Ш')
    parse_floats(info, query, 'reg', 'regulator')
    parse_nf_jinv(info,
                  query,
                  'jinv',
                  'j-invariant',
                  field_label=query.get('field_label'))

    if info.get('one') == "yes":
        info['number'] = 1
        query['number'] = 1

    if 'include_base_change' in info:
        if info['include_base_change'] in [
                'exclude', 'off'
        ]:  # off for backward compat with urls
            query['base_change'] = []
        if info['include_base_change'] == 'only':
            query['base_change'] = {'$ne': []}
    else:
        info['include_base_change'] = "on"

    if 'include_Q_curves' in info:
        if info['include_Q_curves'] == 'exclude':
            query['q_curve'] = False
        elif info['include_Q_curves'] == 'only':
            query['q_curve'] = True

    parse_cm_list(info,
                  query,
                  field='cm_disc',
                  qfield='cm',
                  name="CM discriminant")

    if 'include_cm' in info:
        if info['include_cm'] == 'PCM':
            tmp = {'$ne': 0}
            if 'cm' in query:
                query['cm'] = {'$and': [tmp, query['cm']]}
            else:
                query['cm'] = tmp
        elif info['include_cm'] == 'PCMnoCM':
            tmp = {'$lt': 0}
            if 'cm' in query:
                query['cm'] = {'$and': [tmp, query['cm']]}
            else:
                query['cm'] = tmp
        elif info['include_cm'] == 'CM':
            tmp = {'$gt': 0}
            if 'cm' in query:
                query['cm'] = {'$and': [tmp, query['cm']]}
            else:
                query['cm'] = tmp
        elif info['include_cm'] == 'noPCM':
            tmp = 0
            if 'cm' in query:
                query['cm'] = {'$and': [tmp, query['cm']]}
            else:
                query['cm'] = tmp

    parse_primes(info,
                 query,
                 'conductor_norm_factors',
                 name='bad primes',
                 qfield='conductor_norm_factors',
                 mode=info.get('bad_quantifier'))
    info['field_pretty'] = field_pretty
    parse_ints(info,
               query,
               'bf_deg',
               name='Base field degree',
               qfield='degree')
Пример #9
0
def elliptic_curve_search(info, query):
    parse_nf_string(info,query,'field',name="base number field",qfield='field_label')
    if query.get('field_label') == '1.1.1.1':
        return redirect(url_for("ec.rational_elliptic_curves", **request.args), 301)

    parse_ints(info,query,'conductor_norm')
    parse_noop(info,query,'conductor_label')
    parse_ints(info,query,'rank')
    parse_ints(info,query,'torsion',name='Torsion order',qfield='torsion_order')
    parse_bracketed_posints(info,query,'torsion_structure',maxlength=2)
    if 'torsion_structure' in query and not 'torsion_order' in query:
        t_o = 1
        for n in query['torsion_structure']:
            t_o *= int(n)
        query['torsion_order'] = t_o
    parse_element_of(info,query,'isodeg',split_interval=1000,contained_in=ECNF_stats().isogeny_degrees)
    parse_bool(info,query,'semistable','semistable')
    parse_bool(info,query,'potential_good_reduction','potential_good_reduction')
    parse_ints(info,query,'class_size','class_size')
    parse_ints(info,query,'class_deg','class_deg')
    parse_ints(info,query,'sha','analytic order of Ш')
    parse_floats(info,query,'reg','regulator')

    if 'jinv' in info:
        if info.get('field','').strip() == '2.2.5.1':
            info['jinv'] = info['jinv'].replace('phi','a')
        if info.get('field','').strip() == '2.0.4.1':
            info['jinv'] = info['jinv'].replace('i','a')
        if not 'a' in info['jinv'] and not info.get('field'): # rational j-invariant allowed for any field
            parse_rational(info, query, 'jinv', name='j-invariant')
            if query.get('jinv'):
                query['jinv'] = {'$regex': '^' + query['jinv'] + '(,0)*$'} # nf elements like j,0,0,0
        else: # j-invariant is a number field element
            parse_nf_elt(info, query, 'jinv', name='j-invariant')
            if query.get('jinv'):
                query['jinv'] = ','.join(query['jinv'])

    if info.get('one') == "yes":
        info['number'] = 1
        query['number'] = 1

    if 'include_base_change' in info:
        if info['include_base_change'] in ['exclude', 'off']: # off for backward compat with urls
            query['base_change'] = []
        if info['include_base_change'] == 'only':
            query['base_change'] = {'$ne':[]}
    else:
        info['include_base_change'] = "on"

    if 'include_Q_curves' in info:
        if info['include_Q_curves'] == 'exclude':
            query['q_curve'] = False
        elif info['include_Q_curves'] == 'only':
            query['q_curve'] = True

    if 'include_cm' in info:
        if info['include_cm'] == 'PCM':
            query['cm'] = {'$ne' : 0}
        elif info['include_cm'] == 'PCMnoCM':
            query['cm'] = {'$lt' : 0}
        elif info['include_cm'] == 'CM':
            query['cm'] = {'$gt' : 0}
        elif info['include_cm'] == 'noPCM':
            query['cm'] = 0

    parse_ints(info,query,field='cm_disc',qfield='cm')
    parse_primes(info, query, 'conductor_norm_factors', name='bad primes',
             qfield='conductor_norm_factors',mode=info.get('bad_quantifier'))
    info['field_pretty'] = field_pretty
    info['web_ainvs'] = web_ainvs
    parse_ints(info,query,'bf_deg',name='Base field degree',qfield='degree')
Пример #10
0
def elliptic_curve_search(info, query):
    parse_rational_to_list(info, query, 'jinv', 'j-invariant')
    parse_ints(info, query, 'conductor')
    if info.get('conductor_type'):
        if info['conductor_type'] == 'prime':
            query['num_bad_primes'] = 1
            query['semistable'] = True
        elif info['conductor_type'] == 'prime_power':
            query['num_bad_primes'] = 1
        elif info['conductor_type'] == 'squarefree':
            query['semistable'] = True
        elif info['conductor_type'] == 'divides':
            if not isinstance(query.get('conductor'), int):
                err = "You must specify a single conductor"
                flash_error(err)
                raise ValueError(err)
            else:
                query['conductor'] = {'$in': integer_divisors(ZZ(query['conductor']))}
    parse_signed_ints(info, query, 'discriminant', qfield=('signD', 'absD'))
    parse_ints(info,query,'rank')
    parse_ints(info,query,'sha','analytic order of Ш')
    parse_ints(info,query,'num_int_pts','num_int_pts')
    parse_ints(info,query,'class_size','class_size')
    if info.get('class_deg'):
        parse_ints(info,query,'class_deg','class_deg')
        if not isinstance(query.get('class_deg'), int):
            err = "You must specify a single isogeny class degree"
            flash_error(err)
            raise ValueError(err)
    parse_floats(info,query,'regulator','regulator')
    parse_floats(info, query, 'faltings_height', 'faltings_height')
    if info.get('reduction'):
        if info['reduction'] == 'semistable':
            query['semistable'] = True
        elif info['reduction'] == 'not semistable':
            query['semistable'] = False
        elif info['reduction'] == 'potentially good':
            query['potential_good_reduction'] = True
        elif info['reduction'] == 'not potentially good':
            query['potential_good_reduction'] = False
    if info.get('torsion'):
        if info['torsion'][0] == '[':
            parse_bracketed_posints(info,query,'torsion',qfield='torsion_structure',maxlength=2,check_divisibility='increasing')
        else:
            parse_ints(info,query,'torsion')
    # speed up slow torsion_structure searches by also setting torsion
    #if 'torsion_structure' in query and not 'torsion' in query:
    #    query['torsion'] = reduce(mul,[int(n) for n in query['torsion_structure']],1)
    if 'cm' in info:
        if info['cm'] == 'noCM':
            query['cm'] = 0
        elif info['cm'] == 'CM':
            query['cm'] = {'$ne' : 0}
        else:
            parse_ints(info,query,field='cm',qfield='cm')
    parse_element_of(info,query,'isogeny_degrees',split_interval=200,contained_in=get_stats().isogeny_degrees)
    parse_primes(info, query, 'nonmax_primes', name='non-maximal primes',
                 qfield='nonmax_primes', mode=info.get('nonmax_quantifier'), radical='nonmax_rad')
    parse_primes(info, query, 'bad_primes', name='bad primes',
                 qfield='bad_primes',mode=info.get('bad_quantifier'))
    parse_primes(info, query, 'sha_primes', name='sha primes',
                 qfield='sha_primes',mode=info.get('sha_quantifier'))
    if info.get('galois_image'):
        labels = [a.strip() for a in info['galois_image'].split(',')]
        elladic_labels = [a for a in labels if elladic_image_label_regex.fullmatch(a) and is_prime_power(elladic_image_label_regex.match(a)[1])]
        modell_labels = [a for a in labels if modell_image_label_regex.fullmatch(a) and is_prime(modell_image_label_regex.match(a)[1])]
        if len(elladic_labels)+len(modell_labels) != len(labels):
            err = "Unrecognized Galois image label, it should be the label of a subgroup of GL(2,Z_ell), such as %s, or the label of a subgroup of GL(2,F_ell), such as %s, or a list of such labels"
            flash_error(err, "13.91.3.2", "13S4")
            raise ValueError(err)
        if elladic_labels:
            query['elladic_images'] = {'$contains': elladic_labels}
        if modell_labels:
            query['modell_images'] = {'$contains': modell_labels}
        if 'cm' not in query:
            query['cm'] = 0
            info['cm'] = "noCM"
        if query['cm']:
            # try to help the user out if they specify the normalizer of a Cartan in the CM case (these are either maximal or impossible
            if any(a.endswith("Nn") for a in modell_labels) or any(a.endswith("Ns") for a in modell_labels):
                err = "To search for maximal images, exclude non-maximal primes"
                flash_error(err)
                raise ValueError(err)
        else:
            # if the user specifies full mod-ell image with ell > 3, automatically exclude nonmax primes (if possible)
            max_labels = [a for a in modell_labels if a.endswith("G") and int(modell_image_label_regex.match(a)[1]) > 3]
            if max_labels:
                if info.get('nonmax_primes') and info['nonmax_quantifier'] != 'exclude':
                    err = "To search for maximal images, exclude non-maximal primes"
                    flash_error(err)
                    raise ValueError(err)
                else:
                    modell_labels = [a for a in modell_labels if a not in max_labels]
                    max_primes = [modell_image_label_regex.match(a)[1] for a in max_labels]
                    if info.get('nonmax_primes'):
                        max_primes += [l.strip() for l in info['nonmax_primes'].split(',') if not l.strip() in max_primes]
                    max_primes.sort(key=int)
                    info['nonmax_primes'] = ','.join(max_primes)
                    info['nonmax_quantifier'] = 'exclude'
                    parse_primes(info, query, 'nonmax_primes', name='non-maximal primes',
                                 qfield='nonmax_primes', mode=info.get('nonmax_quantifier'), radical='nonmax_rad')
                    info['galois_image'] = ','.join(modell_labels + elladic_labels)
                query['modell_images'] = { '$contains': modell_labels }

    # The button which used to be labelled Optimal only no/yes"
    # (default: no) has been renamed "Curves per isogeny class
    # all/one" (default: all).  When this option is "one" we only list
    # one curve in each class, currently choosing the curve with
    # minimal Faltings heights, which is conjecturally the
    # Gamma_1(N)-optimal curve.
    if 'optimal' in info and info['optimal'] == 'on':
        query["__one_per__"] = "lmfdb_iso"

    info['curve_ainvs'] = lambda dbc: str([ZZ(ai) for ai in dbc['ainvs']])
    info['curve_url_LMFDB'] = lambda dbc: url_for(".by_triple_label", conductor=dbc['conductor'], iso_label=split_lmfdb_label(dbc['lmfdb_iso'])[1], number=dbc['lmfdb_number'])
    info['iso_url_LMFDB'] = lambda dbc: url_for(".by_double_iso_label", conductor=dbc['conductor'], iso_label=split_lmfdb_label(dbc['lmfdb_iso'])[1])
    info['cremona_bound'] = CREMONA_BOUND
    info['curve_url_Cremona'] = lambda dbc: url_for(".by_ec_label", label=dbc['Clabel'])
    info['iso_url_Cremona'] = lambda dbc: url_for(".by_ec_label", label=dbc['Ciso'])
    info['FH'] = lambda dbc: RealField(20)(dbc['faltings_height'])