gp: [N,k,chi] = [275,3,Mod(21,275)]
mf = mfinit([N,k,chi],0)
lf = mfeigenbasis(mf)
magma: // Please install CHIMP (https://github.com/edgarcosta/CHIMP) if you want to run this code
chi := DirichletCharacter("275.21");
S:= CuspForms(chi, 3);
N := Newforms(S);
sage: from sage.modular.dirichlet import DirichletCharacter
H = DirichletGroup(275, base_ring=CyclotomicField(10))
chi = DirichletCharacter(H, H._module([6, 5]))
N = Newforms(chi, 3, names="a")
Newform invariants
sage: traces = [224]
f = next(g for g in N if [g.coefficient(i+1).trace() for i in range(1)] == traces)
gp: f = lf[1] \\ Warning: the index may be different
The algebraic \(q\)-expansion of this newform has not been computed, but we have computed the trace expansion .
For each embedding \(\iota_m\) of the coefficient field, the values \(\iota_m(a_n)\) are shown below.
For more information on an embedded modular form you can click on its label.
gp: mfembed(f)
Refresh table
This newform subspace can be constructed as the kernel of the linear operator
\( T_{2}^{224} - 169 T_{2}^{222} + 15120 T_{2}^{220} - 952560 T_{2}^{218} + 47443260 T_{2}^{216} + \cdots + 14\!\cdots\!25 \)
T2^224 - 169*T2^222 + 15120*T2^220 - 952560*T2^218 + 47443260*T2^216 - 1985925087*T2^214 + 72472529363*T2^212 - 2361505602430*T2^210 + 69863250764410*T2^208 - 1899553630514465*T2^206 + 47908649674379578*T2^204 - 1128927045090849527*T2^202 + 24997890531237905555*T2^200 - 522581754905502383495*T2^198 + 10353591416907120083825*T2^196 - 195034138979351000023574*T2^194 + 3502615521954247511214536*T2^192 - 60109222220037178230029020*T2^190 + 987685254502947444447188695*T2^188 - 15565714824876789494174511930*T2^186 + 235634220503252478705685206375*T2^184 - 3430749074892784764478196577245*T2^182 + 48096365525516717257092294224645*T2^180 - 649887857938286803289232381976685*T2^178 + 8471188304533710409621151692031305*T2^176 - 106600735097371857108228566663414625*T2^174 + 1295910404762861178357661143455869190*T2^172 - 15227932554577805945022924014731113535*T2^170 + 173052355739564437924294406817288219755*T2^168 - 1902718175147641330115880176433703184965*T2^166 + 20248585587809746730305408352296302316185*T2^164 - 208629906175312119834299251288420794778820*T2^162 + 2081785379391190697172185537678164844193720*T2^160 - 20121854595137152436709124547832727582781350*T2^158 + 188429399571217741294828707680364117888102725*T2^156 - 1709763448516798199582416144418223121022907300*T2^154 + 15033896268952031491810882089566260558629501075*T2^152 - 128109428218377182216497509524285876154696025925*T2^150 + 1057976197781547945059080419411315087061438505900*T2^148 - 8467465433001338140363548037485213335420355714375*T2^146 + 65674712180379586873213681523351798447187396574275*T2^144 - 493608159198686111733412848572433961962390584639450*T2^142 + 3594731329063373418413112132119063232629510708532475*T2^140 - 25362961997313004108827786338491359164338891279348375*T2^138 + 173349196599592230710138041775060880977610479009799525*T2^136 - 1147521394013417045175917627444586778521994896901128625*T2^134 + 7355900451518235469566752702583872770824771755094470875*T2^132 - 45651652452641162314819724150659502177253528603365477450*T2^130 + 274235074002250877076231292206530214673435557684357700775*T2^128 - 1594139782192937558840739715694745135794449270514528205000*T2^126 + 8964965577337472928898151051121540315516558336603991316125*T2^124 - 48759852933253638289425207469985917531315941768285561701500*T2^122 + 256407677657559005204134357135802457802803348948407018172125*T2^120 - 1303191638847021102262249049834708157162829618215506532253875*T2^118 + 6399381474442301425441576449997823367809622223825009591909000*T2^116 - 30349652833975046327886724658225640146618713606347764393663625*T2^114 + 138956336299634209046478431647449820621889996762866827606639125*T2^112 - 613936813137445044662812712017855504417317154874264127667145000*T2^110 + 2616314595491003448040375107137503279979777745387570287638251625*T2^108 - 10748938883818243689857285681900931358815317792262521604088724125*T2^106 + 42552660676061124381705851412301726481393271397118964926335790875*T2^104 - 162232192818173598131674310221674035687370583934833380790907579125*T2^102 + 595316124054759238677210657326445396452853514922848167535136228625*T2^100 - 2101343617675529707139557024734133505645602244162112553748421028750*T2^98 + 7130360706884340455662893126428202218709086537687205486142504683625*T2^96 - 23243689682261441136242535891442273114208985999855178745434800172500*T2^94 + 72741191084129635632760869343920110865772007755142154738773811833125*T2^92 - 218388279716172652742276217566208724682436471933905411136097958378750*T2^90 + 628540975390581932196036419769812931694073188722664762688671214638125*T2^88 - 1732868498007626452396046276025957690566041335477295059808712054514375*T2^86 + 4572870820925660179009892769315138972248540761658246587769179497438750*T2^84 - 11541406662051397837527320334780465717910507030070858020803006116989375*T2^82 + 27836956544343006284906058781024189911207398518646007139029129765675625*T2^80 - 64108458921661916519835871870242152478589345187410378368848409158362500*T2^78 + 140853044560819463822693179861260574666079291323256812645772646833183125*T2^76 - 294977853387336077700910813104076117305145942806309226732176910971929375*T2^74 + 588283482410573553544202920621522735500039834969846410609605804005264375*T2^72 - 1116205522770002477301376927615543435802806205721174663830825918883963125*T2^70 + 2012935923313307029997467546948850356213396995198415805495485424584450625*T2^68 - 3446615293337529973310118397145847087982686764280882942100642193547532500*T2^66 + 5597083456849632656890057087469947715438397690933343074176291642203028750*T2^64 - 8610786659164603206366707427112607678802161924372130190631751427980884375*T2^62 + 12534734075141420431018030685362088861612678886657733622671461068614784375*T2^60 - 17243776212252157385648044790884397309936397716944486708086593994963737500*T2^58 + 22388518454505888509718684367840373069708650318398787432011392876056940625*T2^56 - 27396388193405841350588232322398757770134800381375522544115925379001781250*T2^54 + 31549540162035271462199674595305874319764679713492158660285375215854484375*T2^52 - 34138826398161734947064642640134416779067731451740453940637263613774296875*T2^50 + 34655192872097155196405331787645159464036279116418065604884582993769765625*T2^48 - 32946583469809956293045955885586823875745893692968409601791388636056015625*T2^46 + 29277784814035532198380180941711210180010568988129128713172781192966796875*T2^44 - 24269793671431412860098973772696203634169061292532916588117616493671875000*T2^42 + 18728784462542853900250100589887754827145599092892474604165104451113281250*T2^40 - 13418140086654383901776711924229518356703852478616356209986397185909375000*T2^38 + 8890875708319549932249248911742889456715573829951038728775562157882812500*T2^36 - 5425231180095823813713264254154549208621067195071112419871003357179687500*T2^34 + 3035467739111323720003230839571133277047012616144932548359741668048828125*T2^32 - 1542297765876716646991273193845382395377531645961758206358318913199218750*T2^30 + 704819494099555063590067939677665539628232883518468474900734567472656250*T2^28 - 286307056972360222031801040272621803601295625588109226248191823773437500*T2^26 + 101161041055040390650026885770948034712530726639737237433555139093750000*T2^24 - 30006893174376132010857812255640734098915213167436537372901956406250000*T2^22 + 7160737121200398539868638454832552208023370824132920059335263193359375*T2^20 - 1314997501086921515057869480621710024422186443693551680907962656250000*T2^18 + 177678445515319399088850248353615851897988620495385351779629062500000*T2^16 - 16833667523004085432326839772911508171816478318946830815896533203125*T2^14 + 1074188583990073407673475865463390688404982828032222578932958984375*T2^12 - 46160235146463736656937289035903725550920941436565154819824218750*T2^10 + 1653631987195886265046909593791148238876397240271331090332031250*T2^8 - 54505817575474050833307282781280865109468471271658601074218750*T2^6 + 1254401097504802915169083677738469874237398360271276855468750*T2^4 + 26108142839786147559238516444490887406157824218750000000*T2^2 + 1428102877393445036998155147532345223694000244140625
acting on \(S_{3}^{\mathrm{new}}(275, [\chi])\).