INFORMATION ON THE IMAGE IN PSL(2,Z) OF THE GROUP OF PURE MODULAR GROUP LIFTABLES UNDER ITS PULLBACK ACTION ON THE UPPER HALF-PLANE Index in PSL(2,Z): 192 Minimal number of generators: 33 Number of equivalence classes of cusps: 24 Genus: 5 REPRESENTATIVES OF THE CUSP EQUIVALENCE CLASSSES -3/1 -2/1 -5/3 -3/2 -1/1 -2/3 -1/2 -1/3 0/1 1/4 1/3 3/8 1/2 2/3 3/4 1/1 4/3 3/2 5/3 2/1 8/3 3/1 4/1 1/0 CUSPS AT THE FUNDAMENTAL DOMAIN AND THEIR IMAGES UNDER THE PULLBACK MAP CUSP IMAGE PSEUDOIMAGES -4/1 1/0 -7/2 1/0 -3/1 -3/1 -8/3 -2/1 -5/2 -2/1 -7/3 -1/1 -2/1 1/0 -7/4 -3/1 -5/3 -2/1 -8/5 -2/1 -3/2 -3/2 1/0 -7/5 -1/1 -4/3 -1/1 -1/1 1/0 -4/5 -3/1 -3/4 -2/1 -8/11 -2/1 -5/7 -1/1 -2/3 -2/1 -5/8 1/0 -8/13 -2/1 -3/5 -2/1 -7/12 -5/3 -4/7 -3/2 -1/2 -1/1 -3/7 -3/1 -1/1 -2/5 -1/1 -3/8 -3/2 -4/11 -1/1 -1/3 -1/1 -2/7 -2/3 0/1 -1/4 -1/1 0/1 0/1 1/4 1/1 2/7 1/0 1/3 1/1 3/8 3/2 2/5 2/1 3/7 3/1 1/2 1/0 4/7 1/0 3/5 0/1 5/8 1/2 2/3 1/1 5/7 1/1 5/3 3/4 2/1 1/1 1/0 5/4 -2/1 4/3 -1/1 11/8 -1/2 7/5 -1/1 3/2 0/1 8/5 0/1 13/8 1/2 5/3 0/1 12/7 1/2 7/4 1/1 2/1 0/1 2/1 7/3 1/1 5/2 3/2 1/0 8/3 2/1 11/4 2/1 3/1 1/1 3/1 7/2 3/1 4/1 1/0 1/0 1/0 GENERATING SET ASSOCIATED TO THE FUNDAMENTAL DOMAIN GENERATOR EDGE PAIRING TYPE Matrix(1,8,0,1) (-4/1,1/0) -> (4/1,1/0) Parabolic Matrix(9,32,16,57) (-4/1,-7/2) -> (1/2,4/7) Hyperbolic Matrix(7,24,16,55) (-7/2,-3/1) -> (3/7,1/2) Hyperbolic Matrix(23,64,-32,-89) (-3/1,-8/3) -> (-8/11,-5/7) Hyperbolic Matrix(25,64,16,41) (-8/3,-5/2) -> (3/2,8/5) Hyperbolic Matrix(23,56,16,39) (-5/2,-7/3) -> (7/5,3/2) Hyperbolic Matrix(7,16,24,55) (-7/3,-2/1) -> (2/7,1/3) Hyperbolic Matrix(9,16,32,57) (-2/1,-7/4) -> (1/4,2/7) Hyperbolic Matrix(33,56,-56,-95) (-7/4,-5/3) -> (-3/5,-7/12) Hyperbolic Matrix(39,64,-64,-105) (-5/3,-8/5) -> (-8/13,-3/5) Hyperbolic Matrix(41,64,16,25) (-8/5,-3/2) -> (5/2,8/3) Hyperbolic Matrix(39,56,16,23) (-3/2,-7/5) -> (7/3,5/2) Hyperbolic Matrix(23,32,-64,-89) (-7/5,-4/3) -> (-4/11,-1/3) Hyperbolic Matrix(7,8,-8,-9) (-4/3,-1/1) -> (-1/1,-4/5) Parabolic Matrix(41,32,32,25) (-4/5,-3/4) -> (5/4,4/3) Hyperbolic Matrix(153,112,56,41) (-3/4,-8/11) -> (8/3,11/4) Hyperbolic Matrix(23,16,56,39) (-5/7,-2/3) -> (2/5,3/7) Hyperbolic Matrix(25,16,64,41) (-2/3,-5/8) -> (3/8,2/5) Hyperbolic Matrix(233,144,144,89) (-5/8,-8/13) -> (8/5,13/8) Hyperbolic Matrix(193,112,112,65) (-7/12,-4/7) -> (12/7,7/4) Hyperbolic Matrix(57,32,16,9) (-4/7,-1/2) -> (7/2,4/1) Hyperbolic Matrix(55,24,16,7) (-1/2,-3/7) -> (3/1,7/2) Hyperbolic Matrix(39,16,56,23) (-3/7,-2/5) -> (2/3,5/7) Hyperbolic Matrix(41,16,64,25) (-2/5,-3/8) -> (5/8,2/3) Hyperbolic Matrix(153,56,112,41) (-3/8,-4/11) -> (4/3,11/8) Hyperbolic Matrix(55,16,24,7) (-1/3,-2/7) -> (2/1,7/3) Hyperbolic Matrix(57,16,32,9) (-2/7,-1/4) -> (7/4,2/1) Hyperbolic Matrix(1,0,8,1) (-1/4,0/1) -> (0/1,1/4) Parabolic Matrix(89,-32,64,-23) (1/3,3/8) -> (11/8,7/5) Hyperbolic Matrix(95,-56,56,-33) (4/7,3/5) -> (5/3,12/7) Hyperbolic Matrix(105,-64,64,-39) (3/5,5/8) -> (13/8,5/3) Hyperbolic Matrix(89,-64,32,-23) (5/7,3/4) -> (11/4,3/1) Hyperbolic Matrix(9,-8,8,-7) (3/4,1/1) -> (1/1,5/4) Parabolic IMAGES OF THE GENERATORS UNDER THE VIRTUAL ENDOMORPHISM Matrix(1,8,0,1) -> Matrix(1,6,0,1) Matrix(9,32,16,57) -> Matrix(1,4,0,1) Matrix(7,24,16,55) -> Matrix(1,6,0,1) Matrix(23,64,-32,-89) -> Matrix(3,8,-2,-5) Matrix(25,64,16,41) -> Matrix(1,2,0,1) Matrix(23,56,16,39) -> Matrix(1,2,-2,-3) Matrix(7,16,24,55) -> Matrix(1,2,0,1) Matrix(9,16,32,57) -> Matrix(1,4,0,1) Matrix(33,56,-56,-95) -> Matrix(7,16,-4,-9) Matrix(39,64,-64,-105) -> Matrix(1,0,0,1) Matrix(41,64,16,25) -> Matrix(3,4,2,3) Matrix(39,56,16,23) -> Matrix(3,4,2,3) Matrix(23,32,-64,-89) -> Matrix(3,2,-2,-1) Matrix(7,8,-8,-9) -> Matrix(1,-2,0,1) Matrix(41,32,32,25) -> Matrix(3,8,-2,-5) Matrix(153,112,56,41) -> Matrix(1,4,0,1) Matrix(23,16,56,39) -> Matrix(1,4,0,1) Matrix(25,16,64,41) -> Matrix(3,4,2,3) Matrix(233,144,144,89) -> Matrix(1,2,2,5) Matrix(193,112,112,65) -> Matrix(5,8,8,13) Matrix(57,32,16,9) -> Matrix(7,10,2,3) Matrix(55,24,16,7) -> Matrix(1,4,0,1) Matrix(39,16,56,23) -> Matrix(3,4,2,3) Matrix(41,16,64,25) -> Matrix(1,2,0,1) Matrix(153,56,112,41) -> Matrix(3,4,-4,-5) Matrix(55,16,24,7) -> Matrix(1,0,2,1) Matrix(57,16,32,9) -> Matrix(1,0,2,1) Matrix(1,0,8,1) -> Matrix(1,0,2,1) Matrix(89,-32,64,-23) -> Matrix(1,-2,0,1) Matrix(95,-56,56,-33) -> Matrix(1,0,2,1) Matrix(105,-64,64,-39) -> Matrix(1,0,0,1) Matrix(89,-64,32,-23) -> Matrix(5,-8,2,-3) Matrix(9,-8,8,-7) -> Matrix(1,-4,0,1) INFORMATION ON THE IMAGE OF THIS GROUP UNDER THE VIRTUAL ENDOMORPHISM Index in PSL(2,Z): 6 Minimal number of generators: 2 Number of equivalence classes of cusps: 3 Genus: 0 Degree of H/liftables -> H/(image of liftables): 11 Degree of the the map X: 11 Degree of the the map Y: 32 Permutation triple for Y: ((1,7,8,2)(3,13,28,14)(4,18,19,5)(6,23,9,24)(10,27,26,11)(12,22,21,29)(15,25,30,16)(17,32,20,31); (1,5,22,6)(2,11,12,3)(4,16,23,17)(7,27,21,28)(8,18,29,9)(10,30,13,31)(14,32,26,15)(19,25,24,20); (1,3,15,4)(2,9,16,10)(5,20,14,21)(6,25,26,7)(8,28,30,19)(11,32,23,22)(12,18,17,13)(24,29,27,31)) ----------------------------------------------------------------------- Elements among 0, lambda1, lambda2 and lambda1+lambda2 which lift elements of DeckMod(f) via pi_1: 0 DeckMod(f) is trivial. Elements among 0, lambda1, lambda2 and lambda1+lambda2 which lift modular group liftables via pi_1: 0 The subgroup of modular group liftables which arise from translations is trivial. ----------------------------------------------------------------------- INFORMATION ON THE IMAGE IN PSL(2,Z) OF THE GROUP OF MODULAR GROUP LIFTABLES UNDER ITS PULLBACK ACTION ON THE UPPER HALF-PLANE Index in PSL(2,Z): 64 Minimal number of generators: 13 Number of equivalence classes of elliptic points of order 2: 0 Number of equivalence classes of elliptic points of order 3: 4 Number of equivalence classes of cusps: 8 Genus: 1 REPRESENTATIVES OF THE CUSP EQUIVALENCE CLASSSES -2/1 -1/1 0/1 1/2 1/1 2/1 4/1 1/0 CUSPS AT THE FUNDAMENTAL DOMAIN AND THEIR IMAGES UNDER THE PULLBACK MAP CUSP IMAGE PSEUDOIMAGES -2/1 1/0 -5/3 -2/1 -3/2 -3/2 1/0 -1/1 1/0 -2/3 -2/1 -3/5 -2/1 -4/7 -3/2 -1/2 -1/1 -1/3 -1/1 -1/4 -1/1 0/1 0/1 1/4 1/1 1/3 1/1 1/2 1/0 2/3 1/1 1/1 1/0 4/3 -1/1 3/2 0/1 2/1 0/1 2/1 3/1 1/1 3/1 4/1 1/0 1/0 1/0 GENERATING SET ASSOCIATED TO THE FUNDAMENTAL DOMAIN GENERATOR EDGE PAIRING TYPE Matrix(1,3,-3,-8) (-2/1,1/0) -> (-1/2,-1/3) Hyperbolic Matrix(7,13,-13,-24) (-2/1,-5/3) -> (-4/7,-1/2) Hyperbolic Matrix(17,27,5,8) (-5/3,-3/2) -> (3/1,4/1) Hyperbolic Matrix(8,11,5,7) (-3/2,-1/1) -> (3/2,2/1) Hyperbolic Matrix(7,5,11,8) (-1/1,-2/3) -> (1/2,2/3) Hyperbolic Matrix(8,5,27,17) (-2/3,-3/5) -> (1/4,1/3) Hyperbolic Matrix(63,37,-109,-64) (-3/5,-11/19) -> (-10/17,-4/7) Elliptic Matrix(16,5,3,1) (-1/3,-1/4) -> (4/1,1/0) Hyperbolic Matrix(1,0,8,1) (-1/4,0/1) -> (0/1,1/4) Parabolic Matrix(8,-3,19,-7) (1/3,3/7) -> (3/8,1/2) Elliptic Matrix(15,-11,11,-8) (2/3,1/1) -> (4/3,3/2) Hyperbolic Matrix(17,-21,13,-16) (1/1,9/7) -> (6/5,4/3) Elliptic Matrix(8,-19,3,-7) (2/1,8/3) -> (7/3,3/1) Elliptic IMAGES OF THE GENERATORS UNDER THE VIRTUAL ENDOMORPHISM Matrix(1,3,-3,-8) -> Matrix(1,3,-1,-2) Matrix(7,13,-13,-24) -> Matrix(1,5,-1,-4) Matrix(17,27,5,8) -> Matrix(3,5,1,2) Matrix(8,11,5,7) -> Matrix(0,-1,1,1) Matrix(7,5,11,8) -> Matrix(1,1,1,2) Matrix(8,5,27,17) -> Matrix(0,-1,1,1) Matrix(63,37,-109,-64) -> Matrix(11,19,-7,-12) Matrix(16,5,3,1) -> Matrix(4,3,1,1) Matrix(1,0,8,1) -> Matrix(1,0,2,1) Matrix(8,-3,19,-7) -> Matrix(2,-3,1,-1) Matrix(15,-11,11,-8) -> Matrix(1,-1,-1,2) Matrix(17,-21,13,-16) -> Matrix(1,3,-1,-2) Matrix(8,-19,3,-7) -> Matrix(2,-3,1,-1) INFORMATION ON THE IMAGE OF THIS GROUP UNDER THE VIRTUAL ENDOMORPHISM Index in PSL(2,Z): 2 Minimal number of generators: 2 Number of equivalence classes of elliptic points of order 2: 0 Number of equivalence classes of elliptic points of order 3: 2 Number of equivalence classes of cusps: 1 Genus: 0 Degree of H/liftables -> H/(image of liftables): 11 ----------------------------------------------------------------------- INFORMATION ON THE IMAGE IN PGL(2,Z) OF THE GROUP OF EXTENDED MODULAR GROUP LIFTABLES UNDER ITS PULLBACK ACTION ON THE UPPER HALF-PLANE CUSPS AT THE FUNDAMENTAL DOMAIN AND THEIR IMAGES UNDER THE PULLBACK MAP CUSP IMAGE c d -3/2 (-3/2,1/0) 0 4 -1/1 1/0 1 4 -2/3 -2/1 1 4 0/1 0/1 1 4 1/2 1/0 1 4 2/3 1/1 1 4 1/1 1/0 2 4 4/3 -1/1 2 4 3/2 0/1 1 4 2/1 (0/1,2/1) 0 4 1/0 1/0 3 4 GENERATING SET ASSOCIATED TO THE FUNDAMENTAL DOMAIN GENERATOR EDGE PAIRING TYPE Matrix(1,3,0,-1) (-3/2,1/0) -> (-3/2,1/0) Reflection Matrix(8,11,5,7) (-3/2,-1/1) -> (3/2,2/1) Hyperbolic Matrix(7,5,11,8) (-1/1,-2/3) -> (1/2,2/3) Hyperbolic Matrix(-1,0,3,1) (-2/3,0/1) -> (-2/3,0/1) Reflection Matrix(1,0,5,-1) (0/1,2/5) -> (0/1,2/5) Reflection Matrix(7,-3,16,-7) (3/8,1/2) -> (3/8,1/2) Reflection Matrix(15,-11,11,-8) (2/3,1/1) -> (4/3,3/2) Hyperbolic Matrix(17,-21,13,-16) (1/1,9/7) -> (6/5,4/3) Elliptic Matrix(7,-16,3,-7) (2/1,8/3) -> (2/1,8/3) Reflection Matrix(-1,5,0,1) (5/2,1/0) -> (5/2,1/0) Reflection IMAGES OF THE GENERATORS MAP ON REFLECTION AXES OR UNDER THE VIRTUAL ENDOMORPHISM FIXED POINT OF IMAGE Matrix(1,3,0,-1) -> Matrix(1,3,0,-1) (-3/2,1/0) -> (-3/2,1/0) Matrix(8,11,5,7) -> Matrix(0,-1,1,1) (-1/1,1/1).(-1/2,1/0).(-2/1,0/1) Matrix(7,5,11,8) -> Matrix(1,1,1,2) Matrix(-1,0,3,1) -> Matrix(-1,0,1,1) (-2/3,0/1) -> (-2/1,0/1) Matrix(1,0,5,-1) -> Matrix(1,0,1,-1) (0/1,2/5) -> (0/1,2/1) Matrix(7,-3,16,-7) -> Matrix(-1,3,0,1) (3/8,1/2) -> (3/2,1/0) Matrix(15,-11,11,-8) -> Matrix(1,-1,-1,2) Matrix(17,-21,13,-16) -> Matrix(1,3,-1,-2) (-2/1,0/1).(-3/2,1/0).(-3/1,-1/1) Matrix(7,-16,3,-7) -> Matrix(1,0,1,-1) (2/1,8/3) -> (0/1,2/1) Matrix(-1,5,0,1) -> Matrix(-1,3,0,1) (5/2,1/0) -> (3/2,1/0) ----------------------------------------------------------------------- The pullback map has no extra symmetries.