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bussey169

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Reprint of W. H. Bussey's paper 'Galois Field Tables for p^n ≤ 169', read before the American Mathematical Society in September 1905 (Bulletin, Oct. 1905). It explains how each field is built from a primitive irreducible congruence and gives two tables per field, one by powers of a primitive root and one by ordered coefficient symbols. Three worked examples show addition, multiplication and division, and the tables cover fields such as GF[2^3], GF[3^2], GF[5^2], GF[7^2] and GF[2^6]. The table text is largely garbled by OCR.

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22 GALOIS FIELD TABLES. [Oct., GALOIS FIELD TABLES FOR p* ^ 169. BY DR. W. H. BUSSEY. (Read before the American Mathematical Society, September 7, 1905). EVERY field of a finite number of marks may be represented as a Galois field of order s=pn9 where pn is a power of a prime. The GF\_pn~\ is defined uniquely by its order, and is therefore independent of the particular irreducible congruence used in its construction. In each of the following tables the GF[pn~\ is constructed by means of a primitive irreducible congruence which appears at the top of the table. The marks of each field are arranged in two tables. In each table each mark appears as a power of a primitive root i, and also as a polynomial in i of degree k = n — 1. The coefficients in this polynomial are integers reduced modulo p. The mark Aik + JBi*-1 + • • • + Di + E, A =f= 0 is denoted by AB• •. DE, a symbol consisting of its detached coefficients in order. Zero coefficients must not be omitted. This is the usual symbol for a positive integer in the notation of the number system whose base is p. In the first table the marks are arranged according to ascending powers of i. In the second table the marks are arranged so that the symbols AB • • • DE represent the positive integers in natural order. By means of these two tables it is possible to perform with ease the operations of addition, sub­ traction, multiplication and division, within the field. For an exposition of the Galois field theory, see Dickson's Linear Groups, pages 1-54 ; Jordan's Traité des Substitutions, pages 14-18, pages 156-161; Serret's Algèbre supérieure. For other references on Galois fields and higher irreducible congruences, see the preface to Dickson's Linear Groups. Example 1. Simplify (i7 + ils)(i2 + Si -f 4), i being a primi­ tive root of the GF[72]. From the first table for GF\_V], ir = 6i + 1, iw = Si + 3, i2 = i + 4. Therefore ir + iVà = 9i + 4 = 2i + 4 (modulo 7) = i6 (by second table). Also i2 + Si + 4 = 4i + 8 = 4i + 1 (modulo 7) = i22 (by second table). Therefore (i7 + in)(i2 + Si + 4) = i6 - i22 = i2S = hi + 1 (by first table). 1905.] GALOIS FIELD TABLES. 23 Example 2. Simplify in + 3i79 -, i being a primitive 2»26 - 3»'8 + 2 ' root of the GF[5H]. From the first table for GF[BP], i11 = 3Ï2 + 3», »79 = 3»2 + t _ƒ_ J »26 = 3» + 1 — »'8 = i70 = 3»'2 + 4» + 4. Therefore*11 + 3i79 = SP + 3» + 3 (3i2 + *'+ 1) = 12»2 + 6» + 3 = 2» + « + 3 (mod. 5) = »'81 (by second table). Also 2»'26- 3»'8 + 2 = 2(3» + 1) + 3(3»2 + 4» + 4) + 2 = 9»2 + 18»'+16 = 4»2 + 3» + l (mod. 5) = »18 (by second table). Therefore iu + in 2i26-3»8+2-»18 Example 3. Simplify = ^. = »63 = 4i (by first table). - 10i7 + 4 , i being a primitive »-83 + 2/»117 root of the GF[11*]. From the first table for GF[1V], i88 = 6» + 2, i7 = 9t + 2, t° = 2t + 3, i3= 3»+ 3. Also — 10i7 = »'7, because — 10 == 1 modulo 11 ; and 2/»'117 = 2»'3 because »120 = 1. Therefore i88 - 10t7 + 4 = (6t + 2) + (9* + 2) + 4 = 15» + 8 = 4» + 8 (modulo 11) = »'82 (by second table). Also »» + 2/»117 = (2* + 3) + 2 (3» + 3) = 8» + 9 - »101 (by second table). Therefore i®—l0i7 + 4 ~T83 + 2/»117 : table). = 8» + 9 (by first GF[V], i3 = i + 1, modulo 2. ix = at' + pi + y. FIEST TABLE. A 1 2 3 4 5 6 7 a 1 1 1 1 0 1 0 1 1 1 0 Y 0 0 1 0 1 1 1 SECOND TABLE. \ 7 1 3 2 6 4 5 a 1 1 1 1 0 1 1 0 0 1 1 Y 1 0 1 0 1 0 1 24 GALOIS FIELD TABLES. [Oct., GF[&], i* si+1, modulo 3. fr = ai + /?. FIBST TABLE. SECOND TABLE. A 1 2 3 4 a 1 1 2 0 0 1 | 1 2 1 A 5 6 7 1 8 a 2 2 1 IB 0 2 2 1 A 8 4 1 2 a 1 1 0 1 2 0 1 A 7 1 5 1 3 1 6 a 1 2 2 2 0 2 0 1 2 #F[2*], t<st + l, modulo 2. tA = ai3 + /W* +yi+a. FIRST TABLE. A 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 a 1 1 1 1 1 1 1 1 0 1 0 1 1 0 1 0 1 1 1 1 0 Y 1 0 0 1 1 0 1 0 1 1 1 1 0 0 8 0 0 0 1 0 0 1 1 0 1 0 1 1 1 1 SECOND TABLE. A 15 1 4 2 8 5 10 3 14 9 7 6 13 11 12 a 0 1 1 1 1 0 0 0 0 1 1 1 1 y 1 1 0 0 1 1 0 0 1 1 0 0 1 1 8 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1 QF[5P], i2 = 2î + 2, modulo 5. iK = ai + p. FIRST TABLE. A 1 2 3 4 5 6 7 8 9 10 11 12 a 1 2 1 1 4 3 1 3 3 2 0 1 0 2 4 2 2 3 0 1 2 1 1 4 A 13 14 15 16 17 18 19 20 21 22 23 1 24 a 4 3 4 4 1 2 4 2 2 3 0 0 3 1 3 3 2 0 4 3 4 4 1 SECOND TABLE. A 24 18 6 12 1 8 4 17 3 19 11 2 a 1 1 1 1 1 2 2 2 0 1 1 2 1 3 4 0 1 1 2 3 4 0 1 2 A 21 22 7 10 9 14 23 13 15 5 16 1 20 a 2 2 3 3 3 3 3 4 4 4 4 4 00. 3 4 0 1 2 3 4 0 1 2 3 4 Cl OD w ffl < H A •-I W M Co* + + + •ç* 03, + *r» Ö II ^ <M' o 'O O s BLE Ê3 ft fi o y C/J 3 o C5 ^ + + H? m i i rHOrHOiHOrHOrHOrHOrHOrHOrHOiHOrHOrHOrHOrHOrHOr--i «O ?* «a. Ö rHrHOOrHrHOOrHrHOOrHrHOOrHrHOOrHTHOOTHrHOOrHrH rHrHrHrHOOOOrHrHrHrHOOOOrHrHrHrHOOOOrHrHrHrH tu <o ?- co. Ö << OOOOrHOrHrHOrHOrHOOOrHrHrHOrHrHr^rHrHOOrHOOrHr-i THOOOrHrHrHOrHTHrHrHrHOOrHOOrHrHOOOOrHOrHrHOrH rH O O rH rH O O O O rH HHOHOHOOOHHHOHHHHH HOHHOHOHO rH T-i rH O r-i rH rH rH rH O rH O HHO r-4 rH rH rH T—1 rH rH rH rH rH rH rH rH rH rH rH HWW^>O5UN0005OHNC0^>0(©l>0005O^(MC0^»OOl>C005OH HHHHHHHHHH(N(MW!N(N(M(M(M(M(NCOCO + 3 O + &4 £5 H ?- 00. Ö «< ?- oa tf >< ?- où. ö < (MrHrHCNOrHrHrH (NHONNNO <M <M rH (M <M<N rH<N(M(N<N<M<M<M ON(M(NOOHOH HHO <MO<NrH<N rH rH rH <M (M rH OH(MW^iO?ONOO OO^O^HWWH HOHNHHNOH rH rH <N rH rH <N HNco^»oor>ooci 26 GALOIS FIELD TABLES. [Oct., GF[33], iX^ai* + pi + y. SECOND TABLE. A 26 13 1 9 3 14 16 22 2 a 1 0 1 1 1 2 2 2 0 7 1 2 0 1 2 0 i 1 1 2 ' o 1 A 21 12 10 6 11 4 18 7 1 15 a 2 0 0 0 1 1 1 2 2 2 0 y 1 2 0 1 2 0 1 2 o 1 A 25 8 17 20 5 23 24 19 a 2 2 2 2 2 2 2 2 0 0 0 1 1 1 2 2 2 y 1 2 0 1 2 0 1 2 O.F[72], i2 = i + 4, modulo 7. iA = at -f- /?. FIEST TABLE. SECOND TABLE. A 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 a 1 1 5 2 1 2 6 3 3 1 6 3 6 4 2 2 3 4 2 4 5 * 1 0 4 4 6 1 4 1 3 0 5 5 4 3 5 3 2 0 1 1 5 2 1 2 6 A 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 1 48 a 6 6 2 5 6 5 1 4 4 6 1 4 1 3 5 5 4 3 5 3 2 0 0 3 3 1 6 3 6 4 0 2 2 3 4 2 4 5 0 6 6 2 5 6 5 1 A 48 16 8 32 40 24 1 5 38 36 2 11 31 17 18 21 27 6 47 4 9 19 44 13 a 2 2 2 2 2 2 2 3 3 3 3 0 1 2 3 1 4 i 5 6 0 1 2 3 4 5 6 0 1 2 3 4 5 6 o 1 2 1 3 1 A 39 10 | 46 1 33 22 34 15 37 20 43 41 28 23 30 3 45 42 25 7 35 26 12 14 1 29 a 3 3 3 4 4 4 4 4 4 4 5 5 5 5 5 5 5 6 6 6 6 6 6 6 0 4 5 6 0 1 2 3 4 5 6 0 1 2 3 4 5 6 0 1 2 3 4 5 6 1905.] GALOIS FIELD TABLES. 27 (£F[26], i6 = i + 1, modulo 2. ^* = <n5 + /?i4 -f >t» + <«* + « + f. FIBST TABLE. A 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 a 1 1 1 1 1 1 1 1 1 1 1 1 1 J8 1 0 1 1 0 1 0 1 0 1 1 1 1 0 1 0 1 1 1 0 y 1 0 0 1 1 0 0 1 0 1 0 0 1 1 1 1 0 1 0 0 1 1 1 0 0 1 s 1 0 0 0 1 1 0 0 0 1 0 1 0 0 1 1 1 1 0 1 0 0 0 1 1 1 0 0 1 0 e 1 0 0 0 0 1 1 0 0 0 1 0 1 0 0 1 1 1 1 0 1 0 0 0 1 1 1 0 0 1 0 0 ç o 0 0 I 0 0 1 0 0 0 0 1 1 0 0 0 1 0 1 0 0 1 1 1 1 0 1 0 0 0 1 1 1 1 1 A 33 34 35 36 37 38 39 40 41 42 43 44 i 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 a 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 f* 1 0 1 0 1 1 0 1 1 1 0 1 1 0 1 1 0 1 0 1 0 1 1 1 1 1 1 0 Y 0 0 1 0 1 1 0 1 1 1 0 1 1 0 0 1 1 0 1 0 1 0 1 1 1 1 1 1 0 0 8 0 1 0 1 1 0 1 1 1 0 1 1 0 0 1 1 0 1 0 1 0 1 1 1 1 1 1 0 0 0 e 1 0 1 1 0 1 1 1 0 1 1 0 0 1 1 0 1 0 1 0 1 1 1 1 1 1 0 0 0 0 i 0 0 1 0 0 1 0 1 1 0 1 1 1 0 1 1 0 0 1 1 0 1 0 1 0 1 1 1 1 1 1 SECOND TABLE. A 63 1 6 2 12 7 26 3 32 13 35 8 48 a £ V 1 1 1 1 1 1 8 1 1 1 1 0 0 0 0 1 1 6 1 1 0 0 1 1 0 0 1 1 0 0 i 1 0 1 0 1 0 1 0 1 0 1 0 1 A 27 18 4 24 33 16 14 52 36 54 9 45 1 49 a P 1 1 1 1 1 1 1 1 1 1 1 y 1 1 0 0 0 0 0 0 0 0 1 1 1 8 1 1 0 0 0 0 1 1 1 1 0 0 0 e 1 1 0 0 1 1 0 0 1 1 0 0 1 i 0 1 0 1 0 1 0 1 0 1 0 1 0 o o + «o + + h-I «1 H ft W M HH (/) M O rJ ^ o 5? + M5 II << <M O S H3 O a •o •1 6 1 S ^ H ft s o W + &H OO \» w «o OrHOrHOrHOrHOrHOrHOrHOrHOrH HHOOHHOOHHOOHHOOHH HHOOOOHHHHOOOOHHHH ?- rH rH O O O OO O O O rH rH rH rH rH rH rH rH Ö ^ tQ Tfl rH <£> ^ CO »0 <N 00 TP <M CO T* <M <N ÏO *0 »0 \>i tu «o ?- 00, Ö < THOrHOrHOrHOrHOrHOrHOrHOrHOrH rHOOrHrHOOrHrHOOrHrHOOrHrHOO OHHHHOOOOHHHHOOOOHH HHHHHOOOOOOOOHHHHHH rHrHrHrHrHOOOOOOOOOOOOOO r-ir-ir-ir-ir~iT-ir-ir-ti~ir-ir-iT-ir-ir~i OOCOHOiOlONiOH'^riNNlOCOWHN'* CO <N "# rH »C COC^rHCOCOrH^rHC^iOlOCOTfl + + CO o I—I o o a 4- + + C—J «o ?- ca. « •< «o ?< oa. C$ < NONOONOHH OO (MNNHHNOOONHC <M<M<M<MO(M<MrH(MrHO<MrHrHO<M <M O O <N O rH <M <M (MIMHNH NHHONON NOHHO <M <M rH rH <M <M <N rH rH <M <M rH rH H^i0<©l>000iOH<MC0r}<»OCÛN0005OH(MW"*iOCÛ (NC^(M<^CM<M<MCO<rocOCOCOCOCO<ttCOTtl^ OOOH(MO<NH<MNiM(NONNH(MHONHHO HOOHO!NNOOHHH(NNHOOOH(NO(NH HO(M«OOHHHW(MHOOOH(NO(NHNN rH Cq <M rH <N <N <N <M <N <M rH <M rH (N rH rH (N H<NCC^IOCON00050HWCOTJ<IO<ÖN00050H(NCC rHrHrHrHrHrHrHrHT—irHCMCMC<l(M Ci (M + 4 02 t-3 W ^ H P 5 M rH QC M O 1-5 ^ $ + eo "e II ^ co o s T3 a ^ 1—1 + •ç* + ^ Cl -f eo ©5 ued ss s a i 9 ffl 4 H H § fe o Ci «o ?- 00. ci < «o ?» <a. Ö < rHOrHOOrHO<N(NOOrHrHr-iC<lC<lr-i HHHHOHH«H(MOHN(NOH i-l TH I—1 i-H <N rH (M i-l (M (M O r-l O rH rH rH (N(M rHrHrH<M<MrH ^lOONGOOSOHlMCO^iCîûNCOOiO H<MHHHHOHH(MH(NOHNlMO T-IOO<M<N<M—iH(MOOO(MHOH(N ONNNHHCqOOONHOHNHH CM i-l rH rH r-1 HH(MH(N rH (M <N r-i N00050H(MCO-1<iOONC0050H(NCO OHNOH(MOnNOH(MOH(NOH(MOH(MOHiMO OOOHHHNNNOOOHHHNNNOOOHHHN OOOOOOOOOr H <M (M CM (M CM (M (M «o ?- «a. Ö < H(NOH(NOH(NOHNOH(NOH(NOH(MOH(MOH(N HHH(N(M(NOOOHHHN(N(MOOOHHH(MCq(N HHHHHHHHH(^^(M(N(M(N(M (M.N OOHO!^H(NO(N»OuONH(jqoo(^Oi(NOOiOWO:CNN(N^ GO ^F COI>"*CO(M T^ioOOONiOlM^H CO CO rH <M <N <N 30 GALOIS FIELD TABLES. [Oct., GF[34], i* = 2i3 + 2*2 + i + 1, modulo 3. SECOND TABLE.—Continued. A 50 20 43 16 78 19 47 36 6 55 14 34 8 9 70 a 1 1 2 2 2 2 2 2 2 2 2 2 2 2 2 J8 2 2 0 0 0 0 0 0 0 0 0 1 1 1 1 y 2 2 0 0 0 1 1 1 2 2 2 0 0 0 1 8 1 2 0 1 2 0 1 2 0 1 2 0 1 2 0 1 A 60 10 13 77 35 28 57 61 23 4 11 25 39 71 a 2 2 2 2 2 2 2 2 2 2 2 2 2 2 £ 2 2 2 2 2 2 2 2 2 y 1 1 2 2 2 0 0 0 1 1 1 2 2 2 a 1 2 0 1 2 0 1 2 0 1 2 0 1 2 GLF[U8], ;2 = 4d + 9, modulo 11. i* = ai + /?. FIRST TABLE. A 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 a 1 4 3 4 10 10 9 5 2 9 10 2 8 6 8 9 9 7 10 4 7 9 4 5 1 5 7 7 0 0 9 3 5 3 2 2 4 1 7 4 2 0 7 6 10 | 6 4 4 1 8 2 3 8 4 0 3 1 9 1 8 1 A 31 32 1 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 1 60 a 3 9 8 3 7 8 10 2 10 3 3 6 7 5 6 3 5 9 4 9 6 6 1 3 10 1 6 J8 8 5 4 6 5 8 0 6 2 7 2 5 5 10 8 1 10 5 0 1 4 3 4 10 10 9 5 2 9 10 | A 61 62 63 64 65 66 1 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 8Q 87 88 89 90 a 10 7 8 7 1 1 2 6 9 2 1 9 3 5 3 2 2 4 1 7 4 2 7 6 10 6 4 4 P 0 2 8 6 8 9 9 7 10 4 7 9 0 4 5 1 5 7 7 1 3 9 8 3 7 0 8 10 2 10 3 1 A 91 92 93 94 95 96 97 98 99 100 101 102 103 | 104 1 105 106 107 108 109 110 111 112 113 114 115 116 117 1 118 119 120 a 8 2 3 8 4 3 1 9 1 8 8 5 4 6 5 8 6 2 7 2 5 5 10 8 1 10 5 0 3 6 7 5 6 3 0 5 9 4 9 6 6 1 3 10 1 6 0 10 7 8 7 1 1 2 6 9 2 1 1905.] GALOIS FIELD TABLES. 31 GF[lP]y i2 = 4t + 9, modulo 11. ix = ai + P. SECOND TABLE. A 120 12 96 24 48 108 84 36 72 60 1 27 58 80 100 98 117 71 65 66 55 13 9 39 83 70 77 92 78 112 a 1 1 1 1 1 1 1 1 1 1 1 2 2 2 2 2 2 2 2 2 18 1 2 3 4 5 Ö 7 8 9 10 0 1 2 3 4 5 6 7 8 9 10 0 1 2 3 4 5 6 7 8 I A 1 67 110 97 76 41 3 74 42 34 93 31 56 47 25 104 21 90 51 4 95 79 82 2 89 49 114 119 26 8 1 75 a 2 2 3 3 3 8 3 3 3 3 3 3 3 4 4 4 4 4 4 4 4 4 4 4 5 5 5 5 5 5 0 9 10 0 1 2 3 4 5 6 7 8 9 10 0 1 2 3 4 5 6 7 8 9 10 0 1 2 3 4 5 A 103 i 113 45 28 106 109 46 88 105 53 43 15 68 86 59 54 85 29 62 22 19 35 64 111 30 81 44 37 107 1 116 a 5 5 5 5 5 6 6 6 6 6 6 6 6 6 6 6 7 7 7 7 7 7 7 7 7 7 7 8 8 8 0 1 6 7 8 9 10 0 1 2 3 4 5 6 7 8 9 10 0 1 2 3 4 5 6 7 8 9 10 0 1 2 A 91 33 94 102 14 63 101 16 73 50 7 52 18 32 17 10 23 99 69 61 115 6 5 11 57 38 40 20 118 1 87 a 8 8 8 8 8 8 8 8 9 9 9 9 9 9 9 9 9 9 9 10 10 10 10 10 10 10 10 10 10 10 Ê 3 4 5 6 7 8 9 10 0 1 2 3 4 5 6 7 8 9 10 0 1 2 3 4 5 6 7 8 9 10 GJFT58], i3 s 2i + 3, modulo 5. iA = «i2 + /?i + 7- FIRST TABLE. A 1 2 3 4 5 6 7 8 9 10 11 12 a 1 2 3 4 2 2 1 3 3 0 1 0 2 3 4 2 2 1 0 3 3 1 y 0 0 3 0 1 4 1 2 1 1 3 0 4 1 A 13 14 15 16 17 18 19 20 21 22 23 1 24 a 1 1 3 2 4 3 4 3 2 3 3 0 0 1 3 2 4 3 4 3 2 3 3 2 4 3 0 3 4 1 2 4 2 4 1 4 1 A 25 26 27 28 29 30 31 32 33 34 35 1 36 a 2 3 1 1 1 3 1 4 0 0 3 1 1 1 0 3 0 1 4 2 y 4 1 0 4 3 3 3 0 0 4 0 3 32 GALOIS FIELD TABLES. [Oct., GF[53], i3 = 2* + 3, modulo 5. tA = ot* + pi + y. FIRST TABLE.—Continued. A 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 a 2 1 1 3 4 4 3 3 4 1 2 4 2 4 1 4 4 1 4 3 3 3 4 3 1 1 3 0 4 4 3 0 3 4 1 2 4 2 4 1 4 4 1 0 4 3 3 3 0 4 0 3 2 y 2 1 1 3 3 4 0 2 2 4 0 4 2 3 1 2 1 2 3 2 1 2 3 0 2 4 4 4 0 0 2 0 A 67 68 69 70 71 72 1 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 1 96 a 2 1 3 3 4 2 2 4 4 2 3 1 2 1 2 3 2 2 3 2 4 4 4 2 0 1 3 3 4 0 2 2 4 0 4 2 3 1 2 1 2 3 2 2 3 0 2 4 4 4 0 2 0 4 V 4 1 3 4 4 2 0 1 1 2 0 2 1 4 3 1 3 1 4 1 1 4 0 1 2 2 2 0 0 1 A 97 98 99 100 101 102 103 104 i 105 i 106 107 108 109 110 111 112 113 114 115 116 f 117 118 119 120 121 122 123 124 a 4 1 3 4 4 2 1 1 2 2 1 4 3 1 3 1 4 1 1 4 1 2 2 2 J8 1 3 4 4 2 0 1 1 2 0 2 1 4 3 1 3 1 4 1 1 4 0 1 2 2 2 0 Y 0 2 3 4 2 2 1 0 3 3 1 0 1 3 2 4 3 4 3 2 3 3 2 0 3 1 1 1 SECOND TABLE. A 124 93 31 62 1 103 119 14 34 94 107 72 3 88 32 26 65 10 a 0 1 1 1 1 1 2 2 2 2 2 3 3 3 3 y 1 1 2 3 4 0 1 2 3 4 0 1 1 2 3 4 0 1 2 3 A 45 63 1 96 76 57 41 2 1 9 56 30 13 104 38 116 29 28 120 1 82 a 1 1 1 1 1 1 1 1 1 1 1 1 0 3 4 4 4 4 4 0 0 0 0 0 1 1 1 1 1 2 2 y 4 0 1 2 3 4 0 1 1 2 3 4 0 1 2 3 4 0 1 A 48 i 105 1 80 15 68 98 39 112 35 109 53 117 114 95 123 102 106 1 25 a 1 1 1 1 1 1 1 1 1 1 1 1 1 2 2 2 2 2 0 2 2 2 3 3 3 3 3 4 4 4 4 4 0 0 0 0 0 y 2 3 4 0 1 2 3 4 0 1 '2 3 4 0 1 2 3 4 ?* CO HH O i-l <M CO -* O rH <N CO TH O i-H <N CO TJH O rH <M CO ^ CO. O O rH T-* r-i rH rH <N (M <M <M <N CO CO CO CO CO "tf Th ^ rf< -HH ., GO rH t^ <M lO lO t^ l>0 r-i CO CO 00 00 CO O O <M O rH ^ O "< rH I> OS tO lO rH -HH l> lO O CO >0 H ^ H lM ^ Oi Ol lO O ?- QQ. rt<OH(MCO^OHWCO^OH(MCO^OH<MW^OH(N OHHHHH(M(M(MCq(MC0WC0C0C0^'^^'^'^OOO ö CO CO CO CO CO CO CO CO CO CO CO CO CO CO CO CO CO CO CO CO CO ^ H^ Ttt ?• OHNCO^OHNCO^OriNCO^OHNCO^OHNCO «L HHHHHNNN^lMCOCOCOCOCO^^^rti^OOOO « C<1 <N CM <M <M <M C3 <M <M <M <M <M (M <M <N <M <M <N <N <M CO CO CO CO S5- + + + •a •<s> Sf O rH rH rH rH O O rH O O O rH O r-i rH O O rH rH TH O rH O Kn <o «O ?> oo. ö < p- Vn V X3 ?" 00. Ö OrHOOOrHOrHrHOOrHrHrHOrHOrHOOrHrHrH OOrHOOOrHOrHrHOOrHrHrHOrHOrHOOr-irH rHOOrHOOOrHOrHrHOOrHrHrHOrHOT-iOOrH TH rH O O rH O O rH rH rH O rH O rH rH rH rH rH rHOrHrHOOrlrHrHOrHOrHOO r—O rH rH O rH rH rH O rH O rH O rH rH rH rH rH rH rH rH ^iOCÛiXJOOOHCMCC^iOdNOOOiOHClCO^iOO (^(^(^(^<N(^COCOCOCOCOCOCOCOCOCO^^rh^^r^^ OOOOOOrHOOOOOrHrHOOOOrHOrHOO rHOOOOOrHrHOOOOrHOr-^OOOrHrHrHrHO rH OO OO rHOOO rHOO HO rH rHrHOOOOrHOrHOOOrHrHrHrH rH rH O O O rH O rH O O O rH rH rH rH rH O O rH O rH O O rH rH rH rH O rH O rH O rH rH rH rH TH o o 1 1 . GO s> + ^ + eo + *o + ^ + + M II r1 i ö Hl ^ Ô CO + ^ Cb s- VO . OHHOOOHHOHOOHOHHHOHriHOOHHOOHOHOHOHHHHHHH HHOHOOHOHHHOHHHOOHHOOHOHOHOHHHHHHHOOOOO OHHOHOOHOHHHOHHHOOHHOOHOHOHOHHHHHHHOOOO «o OOHHOHOOHOHHHOHHHOOHHOOriOHOHOHHHHHHHOOO OO HHOHOOHOHHHOHHHOOHHOOHOHOHOHHHHHHr(OO <Q- HO riHOHO HOHHHOHHHO HHO rH O T-I O TH O TH T-H T-I T-I T-I T-I T-I © $=• THOOrWrH»-frHt-lOrHOOOOrHrHrHOOOT-iOOT-(OOT-lrHOT-ir^OrHOT-(i-iOT-lr^rHi-i \t> T-li-(OrHOOOOrHi-irHOOOT-(OOrHOOrHT-)OT-lT-IOTHOTHTHOr^rHrHrHOTHTHOOO T-(rHT-lOTHOOOOrHT-fTHOOOT-lOOrHOOT-(rHOt-lTHOrHOrHTHOrHrH(--lrHOi-iT-iOO HHHHOHOOO T-HT-I,—lOOOrHOOi—lOOi—IT—lOHrIOT—IOT-HT—IOTHT—IT-IHOHHO 7^\ HHHHHOHOO HHHOO HOOHOOHHOHHOHOHHOHHHHOHH rHi-Hr-lT-IrHOrHO T-I O HO HHOHHOHOHHOHHHHOH NOOOSOHrQW^^CDNOOOiOHWWTjH^tDNOOCRiOHNW^iOCONOOaOïHfNW^kCON ^Tfl^iOioiOiO^^^»O^^OÇDCDCDCD«^OCûONl>Nl>NNNl>NNOC)C)CiûOOOOOOOOOOO co o Ci + + + + H3 PQ H ft W M M O •J ^ O + to C^ + to e H ?^ (^ o S3 T3 O g r-T + III BLE Ë3 A 1 o a: <5 THOI—'OrHOrHOi-iOrHOrHOrHOi-lOr-lOrHOTHOr-iOrHOrHOT-lOT-lOT—I O r-i O rH O i—lOHOHOriO OrHrHOOrHrHOOr-lrHOOrHrHOOrHT-iOOrHi—lOOrHrHOOrHr-fOOrHr-lOOT-lrHOOrHrHOOTHrHO OOOrHrHr-HrHOOOOi—irHi-Hi-lOOOOi—IHHHOOOOHHHHOOOOHHHHOOOOHHHHO O0OOO0OrHrHrHWrHTHrHrHOOOOO0OOrHi-lrHTHrHT-Hr-(i--(OOOO OO OOr-li-IrHr-lr-lr-li-lr-IO HHrirtHHHHHHHHHHHOOOOOOOOOOOOOOOOHHriHHHHHHHHHHHHH i-li-lrHTHrHT-lrHTHi--lrHi--lrHi-lrHrHOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOrH s=- \/> *> rHOt—1 O i—lOrHOi—1 O r-4 O r-l O i—1 O r-lOi-HOr-HOr-HOi—lOi—lOi—lOrHOrHOr-lOrHOi—lOrHOrHOi—lOrHO rHrHOOrH^WOOrHrHOOrHTHOOrHrHOOrHrHOOi-HrHOOrHrHOOr-IHOO>-1 r-1 O O r-IrlOOHHO rHrHrHrHOOOOi-irH»-lr^OOOOrHr^rHrHOOOOrHrHrHrHOOOOi-lr-i^-irHOOOOTHrHTHrHO HHHi-Ir-frHr-trHOOOOOOOOrHt-lTHT-iT-lrHr-l»—(OOOOOOOOi—IT-1T—IrHrHr-lr-lr-lO i—I rH r-i T—I rH r-IHHHHI-IHHHHr-iOOOOOOOOOOOOOOOOrH 36 GALOIS FIELD TABLES. [Oct., GF[V], i7 = i + 1, modulo 2. ix = ai* + /3i5 + yi4 + ôtf + e# + Ci + *?. SECOND TABLE.—Continued. A 125 88 61 110 26 36 106 93 52 75 41 72 85 80 102 60 a 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 fi 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 y 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 5 0 0 0 0 0 0 0 1 1 1 1 1 1 1 1 0 e 0 0 0 1 1 1 1 0 0 0 0 1 1 1 1 0 i 0 1 1 0 0 1 1 0 0 1 1 0 0 1 1 0 y i 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 A 124 105 25 40 51 101 84 24 123 83 50 49 122 120 121 a 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 fi 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 y 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 s 0 0 0 0 0 0 0 1 1 1 1 1 1 1 1 e 0 0 0 1 1 1 1 0 0 0 0 1 1 1 1 c 0 1 1 0 0 1 1 0 0 1 1 0 0 1 1 V 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1 GF[W], i' = i + 11, modulo 13. iK = ai + /?. FIRST TABLE. A 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 a 1 1 12 10 12 5 7 10 9 2 10 6 12 2 2 11 7 11 10 1 7 5 1 4 fi 0 11 11 2 G 2 1 3 I 12 6 8 9 6 1 2 0 9 9 4 12 4 6 11 12 1 3 25 26 27 28 29 30 1 31 32 33 1 34 I 35 36 37 38 39 1 40 1 4l 1 42 1 43 44 45 46 47 1 48 a 7 12 11 4 4 9 1 9 7 2 1 10 8 1 11 9 8 8 5 2 5 1 1 fi 5 12 1 2 4 0 5 1 ö 1 8 11 8 12 9 11 6 10 11 4 8 1 0 10 10 3 9 1 3 A 49 50 51 52 53 54 55 56 57 . 58 59 60 61 1 62 63 64 65 66 67 68 69 70 71 1 72 a 4 2 7 3 2 9 5 3 3 10 4 10 2 8 4 1 6 4 5 10 6 1 6 fi 11 5 9 12 7 9 1 8 I 3 0 7 7 6 5 6 9 10 5 11 1 5 3 6 0 1 1 A 73 74 75 76 77 78 79 80 81 82 83 84 i 85 | 86 87 88 89 90 91 92 93 94 95 1 96 a 7 8 7 4 3 8 2 12 8 10 7 12 12 1 3 1 8 6 3 4 11 3 7 fi 1 12 10 12 5 7 10 9 2 10 6 12 0 2 2 11 7 11 10 1 7 5 4 7 1905.] GALOIS FIELD TABLES. 37 OF [132], i2 = i + 11, modulo 13. iK = ai + /?. FIRST TABLE.—Continued. A 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 a 1 11 11 2 6 2 3 12 6 8 9 6 1 2 9 9 0 12 11 o 4 4 9 1 9 7 2 1 10 8 1 11 9 0 8 1 A 115 116 117 118 119 120 121 122 123 124 125 126 127 128 1 129 130 131 | 132 a 4 12 4 6 11 12 3 5 12 2 4 5 5 8 11 8 12 £ ' 8 5 2 5 1 4 2 7 3 2 9 5 0 3 3 10 4 10 1 A 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 | 150 a 9 11 6 10 11 4 8 10 10 3 9 3 11 5 9 12 7 0 2 8 4 1 6 4 5 10 0 6 6 7 8 7 4 ' 3 8 2 I A 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 | 168 a 9 8 3 7 7 6 5 6 9 10 5 11 1 5 3 6 0 12 8 10 7 0 12 12 1 3 1 8 6 3 4 11 3 7 1 SECOND TABLE. A 168 14 56 28 126 70 154 42 112 140 98 84 1 110 87 48 164 65 21 89 32 36 39 2 97 a 1 1 1 1 1 1 1 1 1 1 1 1 1 0 1 2 3 4 5 6 7 8 9 10 11 12 0 1 2 3 4 5 6 7 8 9 10 11 12 | 1 A 15 103 124 46 101 50 62 53 10 16 79 111 35 57 92 121 166 95 77 143 58 145 104 153 1 88 a 2 2 2 2 2 2 2 2 2 2 2 2 2 3 3 3 3 3 3 3 3 3 3 3 3 00. 0 1 2 3 4 5 6 7 8 9 10 11 12 0 1 2 3 4 5 6 7 I 8 9 10 11 1 1 À 52 29 67 117 24 138 30 60 93 115 125 64 49 76 127 158 6 128 147 68 162 122 55 47 1 45 a 3 4 4 4 4 4 4 4 4 4 4 4 4 4 5 5 5 5 5 5 5 5 5 5 5 0 12 0 1 2 3 4 5 6 7 8 9 10 H 12 0 1 2 3 4 5 6 7 8 9 10 1 A 165 23 71 72 106 159 135 118 12 167 109 102 91 66 157 155 73 150 7 18 25 83 96 34 1 51 a 5 5 6 6 6 6 6 6 6 6 6 6 6 6 6 7 7 7 7 7 7 7 7 7 7 00. 11 12 0 1 2 3 4 5 6 7 8 9 10 11 12 0 1 2 3 4 5 6 7 8 9 38 NOTES. [Oct., GF[W], i2 = i-\- 11, modulo 13. iK = ai + /?. SECOND TABLE.—Continued. A 75 22 156 43 107 81 129 131 139 38 78 152 63 44 90 74 113 a 7 7 7 8 8 8 8 8 8 8 8 8 8 8 8 8 9 J8 10 11 12 0 1 2 3 4 5 6 7 8 9 10 11 12 o 1 A 160 133 148 41 31 9 144 114 54 108 33 151 141 136 4 69 1 20 a 9 9 9 9 9 9 9 9 9 9 9 9 10 10 10 10 10 P 1 2 3 4 5 6 7 8 9 10 11 12 0 1 2 3 4 1 A 61 142 59 161 11 82 37 8 99 119 27 163 100 94 137 146 1 134 a 10 10 10 10 10 10 10 10 11 11 11 11 11 11 11 11 11 0 5 6 7 8 9 10 11 12 0 1 2 3 4 5 6 7 8 1 A 17 130 40 19 85 13 86 123 120 116 5 105 149 80 132 3 [ 26 a 11 11 11 11 12 12 12 12 12 12 12 12 12 12 12 12 12 J8 9 10 11 12 0 1 2 3 4 5 6 7 8 9 10 11 12 NOTES. THE July number (volume 6, number 3) of the Transactions of the AMERICAN MATHEMATICAL SOCIETY contains the fol­ lowing papers : " Sur les lignes géodésiques des surfaces con­ vexes/' by H. POINCARÉ ; " The classification of quadrics/' by T. J. FA. BROMWICH ; " On differential invariants/' by J. E. WRIOHT ; " Groups of order pm, which contain cyclic subgroups of order ^>m-3/' by L. I. NEIKIRK ; "On the invariant sub­ groups of prime index," by G. A. MILLER ; " On a general method for treating transmitted motions and its application to indirect perturbations/' by E. W. BROWN ; " On hypercomplex number systems/' by L. E. DICKSON ; " A theorem on finite algebras/' by J. H. MACLAGAN-WEDDERBURN ; " The relation of the principles of logic to the foundations of geometry/' by J. EOYCE ; " On multiple integrals/' by J. PIERPONT. THE July number (volume 27, number 3) of the American Journal of Mathematics contains : " Deduction of the power series representing a function from special values of the latter/' by G. W. HILL ; " On the definition of reducible hypercomplex number systems/' by S. EPSTEEN and EL B. LEONARD;