Sellers, J. A.; Smoot, N. A. On the divisibility of 7-elongated plane partition diamonds by powers of 8. (English) Zbl 07785380 Int. J. Number Theory 20, No. 1, 267-282 (2024). Reviewer: M. P. Chaudhary (New Delhi) MSC: 11P83 30F35 PDFBibTeX XMLCite \textit{J. A. Sellers} and \textit{N. A. Smoot}, Int. J. Number Theory 20, No. 1, 267--282 (2024; Zbl 07785380) Full Text: DOI arXiv
He, Bing On a generalized homogeneous Hahn polynomial. (English) Zbl 07685344 Sci. China, Math. 66, No. 5, 957-976 (2023). MSC: 33D45 33D15 05A15 30D15 30E15 30C15 05A10 PDFBibTeX XMLCite \textit{B. He}, Sci. China, Math. 66, No. 5, 957--976 (2023; Zbl 07685344) Full Text: DOI
Banakh, Taras Banakh spaces and their geometry. arXiv:2305.07354 Preprint, arXiv:2305.07354 [math.GN] (2023). MSC: 30L05 46B85 51F20 54C35 54E50 BibTeX Cite \textit{T. Banakh}, ``Banakh spaces and their geometry'', Preprint, arXiv:2305.07354 [math.GN] (2023) Full Text: arXiv OA License
Lou, Beicheng; Tan, Ser Peow; Vo, Anh Duc Hyperbolic jigsaws and families of pseudomodular groups. II. (English) Zbl 1512.20180 Int. Math. Res. Not. 2022, No. 21, 16524-16568 (2022). Reviewer: Ernesto Martínez (Madrid) MSC: 20H05 20H10 11F06 30F35 30F60 57M05 57M50 PDFBibTeX XMLCite \textit{B. Lou} et al., Int. Math. Res. Not. 2022, No. 21, 16524--16568 (2022; Zbl 1512.20180) Full Text: DOI arXiv
Schein, Michael M.; Shoan, Amir Systolic length of triangular modular curves. (English) Zbl 1502.11069 J. Number Theory 239, 462-488 (2022). Reviewer: Gautam Bharali (Bangalore) MSC: 11G18 14H55 30F20 PDFBibTeX XMLCite \textit{M. M. Schein} and \textit{A. Shoan}, J. Number Theory 239, 462--488 (2022; Zbl 1502.11069) Full Text: DOI arXiv
Ivrissimtzis, Ioannis; Singerman, David; Strudwick, James From Farey fractions to the Klein quartic and beyond. (English) Zbl 1476.30146 Ars Math. Contemp. 20, No. 1, 37-50 (2021). MSC: 30F10 20H10 51M20 PDFBibTeX XMLCite \textit{I. Ivrissimtzis} et al., Ars Math. Contemp. 20, No. 1, 37--50 (2021; Zbl 1476.30146) Full Text: DOI arXiv
Dória, Cayo; Murillo, Plinio G. P. Hyperbolic 3-manifolds with large kissing number. (English) Zbl 1481.53054 Proc. Am. Math. Soc. 149, No. 11, 4595-4607 (2021). Reviewer: Benjamin McKay (Cork) MSC: 53C22 20H10 30F10 20H05 11F06 PDFBibTeX XMLCite \textit{C. Dória} and \textit{P. G. P. Murillo}, Proc. Am. Math. Soc. 149, No. 11, 4595--4607 (2021; Zbl 1481.53054) Full Text: DOI arXiv
Singerman, David; Strudwick, James The Farey maps modulo \(n\). (English) Zbl 1521.11023 Acta Math. Univ. Comen., New Ser. 89, No. 1, 39-52 (2020). MSC: 11F06 11B57 30F10 05C30 05C10 PDFBibTeX XMLCite \textit{D. Singerman} and \textit{J. Strudwick}, Acta Math. Univ. Comen., New Ser. 89, No. 1, 39--52 (2020; Zbl 1521.11023) Full Text: arXiv Link
Magee, Michael On Selberg’s eigenvalue conjecture for moduli spaces of abelian differentials. (English) Zbl 1439.11132 Compos. Math. 155, No. 12, 2354-2398 (2019). Reviewer: Jayadev Athreya (Seattle) MSC: 11F72 22E40 32G15 30F60 37D20 37D25 37D35 PDFBibTeX XMLCite \textit{M. Magee}, Compos. Math. 155, No. 12, 2354--2398 (2019; Zbl 1439.11132) Full Text: DOI arXiv
Şahin, Recep Some results on Hecke and extended Hecke groups. (English) Zbl 1424.20049 Turk. J. Math. 42, No. 2, 621-632 (2018). MSC: 20H10 11F06 30F50 30F35 PDFBibTeX XMLCite \textit{R. Şahin}, Turk. J. Math. 42, No. 2, 621--632 (2018; Zbl 1424.20049) Full Text: DOI
Holzapfel, Rolf-Peter Indefinite Eisenstein lattices: a modern ball-rendevous with Poincarè, Picard, Hecke, Shimura, Mumford, Deligne and Hirzebruch. (English) Zbl 1441.11087 J. Geom. Symmetry Phys. 47, 1-40 (2018). MSC: 11F11 11F30 14G35 20H05 30F45 PDFBibTeX XMLCite \textit{R.-P. Holzapfel}, J. Geom. Symmetry Phys. 47, 1--40 (2018; Zbl 1441.11087) Full Text: DOI Euclid Link
Lou, Beicheng; Tan, Ser; Vo, Anh Duc Hyperbolic jigsaws and families of pseudomodular groups. I. (English) Zbl 1437.20044 Geom. Topol. 22, No. 4, 2339-2366 (2018). MSC: 20H10 20H05 11F06 30F35 30F60 57M05 57M50 PDFBibTeX XMLCite \textit{B. Lou} et al., Geom. Topol. 22, No. 4, 2339--2366 (2018; Zbl 1437.20044) Full Text: DOI arXiv
Ruth, Lauren C. Two New Settings for Examples of von Neumann Dimension. arXiv:1811.11749 Preprint, arXiv:1811.11749 [math.OA] (2018). MSC: 46L10 20H05 20H10 30F35 22E30 22E35 22E40 22E45 22E46 22E50 22D10 22D25 22D30 11F12 11F70 11F85 BibTeX Cite \textit{L. C. Ruth}, ``Two New Settings for Examples of von Neumann Dimension'', Preprint, arXiv:1811.11749 [math.OA] (2018) Full Text: arXiv OA License
Değer, Ali Hikmet Vertices of paths of minimal lengths on suborbital graphs. (English) Zbl 1488.11101 Filomat 31, No. 4, 913-923 (2017). MSC: 11F06 20H05 30B70 PDFBibTeX XMLCite \textit{A. H. Değer}, Filomat 31, No. 4, 913--923 (2017; Zbl 1488.11101) Full Text: DOI
Finster, Myriam Congruence Veech groups. (English) Zbl 1353.32020 Isr. J. Math. 214, No. 2, 885-930 (2016). Reviewer: Gerhard Rosenberger (Hamburg) MSC: 32J15 30F35 30F20 14H55 20H10 PDFBibTeX XMLCite \textit{M. Finster}, Isr. J. Math. 214, No. 2, 885--930 (2016; Zbl 1353.32020) Full Text: DOI arXiv
Weitze-Schmithüsen, Gabriela The deficiency of being a congruence group for Veech groups of origamis. (English) Zbl 1318.30065 Int. Math. Res. Not. 2015, No. 6, 1613-1637 (2015). Reviewer: Gerhard Rosenberger (Hamburg) MSC: 30F10 20H10 30F35 30F60 32G15 14H55 PDFBibTeX XMLCite \textit{G. Weitze-Schmithüsen}, Int. Math. Res. Not. 2015, No. 6, 1613--1637 (2015; Zbl 1318.30065) Full Text: DOI arXiv
Geninska, Slavyana On arithmetic Fuchsian groups and their characterizations. (English. French summary) Zbl 1321.20044 Ann. Fac. Sci. Toulouse, Math. (6) 23, No. 5, 1093-1102 (2014). Reviewer: Gerhard Rosenberger (Hamburg) MSC: 20H10 11F06 22E40 30F35 20H05 PDFBibTeX XMLCite \textit{S. Geninska}, Ann. Fac. Sci. Toulouse, Math. (6) 23, No. 5, 1093--1102 (2014; Zbl 1321.20044) Full Text: DOI Link
Geninska, Slavyana The limit set of subgroups of arithmetic groups in \(\mathrm{PSL}(2,\mathbb C)^q\times\mathrm{PSL}(2,\mathbb R)^r\). (English) Zbl 1336.20048 Groups Geom. Dyn. 8, No. 4, 1047-1099 (2014). Reviewer: Toshihiro Nakanishi (Matsue) MSC: 20H10 22E40 11F06 20H05 30F35 30F40 PDFBibTeX XMLCite \textit{S. Geninska}, Groups Geom. Dyn. 8, No. 4, 1047--1099 (2014; Zbl 1336.20048) Full Text: DOI arXiv
Avigad, Jeremy; Morris, Rebecca The concept of “character” in Dirichlet’s theorem on primes in an arithmetic progression. (English) Zbl 1296.01010 Arch. Hist. Exact Sci. 68, No. 3, 265-326 (2014). Reviewer: Robert W. van der Waall (Huizen) MSC: 01A55 01A60 03-03 00A30 03E20 11-03 11M06 11B25 11N13 30B50 20C15 PDFBibTeX XMLCite \textit{J. Avigad} and \textit{R. Morris}, Arch. Hist. Exact Sci. 68, No. 3, 265--326 (2014; Zbl 1296.01010) Full Text: DOI arXiv
Boggi, Marco Galois coverings of moduli spaces of curves and loci of curves with symmetry. (English) Zbl 1286.14042 Geom. Dedicata 168, 113-142 (2014). Reviewer: Ruben A. Hidalgo (Valparaiso) MSC: 14H10 14H15 14H30 32G15 30F60 PDFBibTeX XMLCite \textit{M. Boggi}, Geom. Dedicata 168, 113--142 (2014; Zbl 1286.14042) Full Text: DOI arXiv
Makisumi, Shotaro A note on Riemann surfaces of large systole. (English) Zbl 1296.30049 J. Ramanujan Math. Soc. 28, No. 3, 359-377 (2013). Reviewer: V. V. Chueshev (Kemerovo) MSC: 30F10 30F35 14H55 PDFBibTeX XMLCite \textit{S. Makisumi}, J. Ramanujan Math. Soc. 28, No. 3, 359--377 (2013; Zbl 1296.30049) Full Text: arXiv
Beardon, A. F. Length inequalities for Riemann surfaces. (English) Zbl 1276.30054 Proc. Am. Math. Soc. 141, No. 8, 2699-2702 (2013). Reviewer: Majid Heydarpour (Zanjan) MSC: 30F45 30F35 20H05 20H10 PDFBibTeX XMLCite \textit{A. F. Beardon}, Proc. Am. Math. Soc. 141, No. 8, 2699--2702 (2013; Zbl 1276.30054) Full Text: DOI
Wang, Bin; Zhu, Xinyun On the traces of elements of modular group. (English) Zbl 1266.15016 Linear Algebra Appl. 438, No. 1, 604-608 (2013). Reviewer: A. W. Mason (Glasgow) MSC: 15A15 15A30 11F06 20H05 30F35 PDFBibTeX XMLCite \textit{B. Wang} and \textit{X. Zhu}, Linear Algebra Appl. 438, No. 1, 604--608 (2013; Zbl 1266.15016) Full Text: DOI arXiv
Breitner, Joachim Loop subgroups of \(F_r\) and the image of their stabilizer subgroups in \(\mathrm{GL}_r(\mathbb Z)\). (English) Zbl 1292.20030 Isr. J. Math. 191, Part B, 545-557 (2012). Reviewer: Balasubramanian Sury (Bangalore) MSC: 20E07 20H05 20E05 32G15 30F60 11F06 PDFBibTeX XMLCite \textit{J. Breitner}, Isr. J. Math. 191, Part B, 545--557 (2012; Zbl 1292.20030) Full Text: DOI arXiv
Keskin, Refik Parabolic class number of a subgroup of the normalizer of \(\Gamma_0(m)\). (English) Zbl 1261.20052 Miskolc Math. Notes 13, No. 2, 365-373 (2012). MSC: 20H10 20H05 30F35 11F06 PDFBibTeX XMLCite \textit{R. Keskin}, Miskolc Math. Notes 13, No. 2, 365--373 (2012; Zbl 1261.20052)
Girondo, Ernesto; Torres-Teigell, David; Wolfart, Jürgen Shimura curves with many uniform dessins. (English) Zbl 1405.14082 Math. Z. 271, No. 3-4, 757-779 (2012). MSC: 14H57 14F35 14H37 20H10 11R52 14G35 30F10 30F35 PDFBibTeX XMLCite \textit{E. Girondo} et al., Math. Z. 271, No. 3--4, 757--779 (2012; Zbl 1405.14082) Full Text: DOI
Yoshida, Hiroyuki On some problems concerning discrete subgroups. (English) Zbl 1286.11138 Comment. Math. Univ. St. Pauli 60, No. 1-2, 231-253 (2011). Reviewer: Joshua Friedman (Plainview) MSC: 11M36 11F72 11F41 30F35 PDFBibTeX XMLCite \textit{H. Yoshida}, Comment. Math. Univ. St. Pauli 60, No. 1--2, 231--253 (2011; Zbl 1286.11138)
Cummins, C. J. Fundamental domains for genus-zero and genus-one congruence subgroups. (English) Zbl 1247.20056 LMS J. Comput. Math. 13, 222-245 (2010). MSC: 20H05 11F06 20-04 68W30 11F22 11F30 30F35 PDFBibTeX XMLCite \textit{C. J. Cummins}, LMS J. Comput. Math. 13, 222--245 (2010; Zbl 1247.20056) Full Text: DOI
Džambić, Amir Congruence subgroups of the minimal covolume arithmetic Kleinian group. (English) Zbl 1215.30014 Abh. Math. Semin. Univ. Hamb. 80, No. 2, 265-273 (2010). Reviewer: Gou Nakamura (Toyota) MSC: 30F40 20H05 11F06 PDFBibTeX XMLCite \textit{A. Džambić}, Abh. Math. Semin. Univ. Hamb. 80, No. 2, 265--273 (2010; Zbl 1215.30014) Full Text: DOI
Bulla, E.; Constales, D.; Kraußhar, R. S.; Ryan, John Dirac type operators for spin manifolds associated to congruence subgroups of generalized modular groups. (English) Zbl 1204.58029 J. Reine Angew. Math. 643, 1-19 (2010). Reviewer: Aloys Krieg (Aachen) MSC: 58J60 30G35 11F30 11F55 PDFBibTeX XMLCite \textit{E. Bulla} et al., J. Reine Angew. Math. 643, 1--19 (2010; Zbl 1204.58029) Full Text: DOI arXiv
İkikardes, Sebahattin; Sahin, Recep; Cangül, I. Naci Principal congruence subgroups of the Hecke groups and related results. (English) Zbl 1184.11014 Bull. Braz. Math. Soc. (N.S.) 40, No. 4, 479-494 (2009). Reviewer: Osman Bizim (Bursa) MSC: 11F06 20H05 30F50 PDFBibTeX XMLCite \textit{S. İkikardes} et al., Bull. Braz. Math. Soc. (N.S.) 40, No. 4, 479--494 (2009; Zbl 1184.11014) Full Text: DOI
Yayenie, Omer Nonexistence of \(H\)-convex cuspidal standard fundamental domain. (English) Zbl 1172.30017 Bull. Korean Math. Soc. 46, No. 5, 823-833 (2009). MSC: 30F35 11F06 20H10 PDFBibTeX XMLCite \textit{O. Yayenie}, Bull. Korean Math. Soc. 46, No. 5, 823--833 (2009; Zbl 1172.30017) Full Text: DOI
Golovchanskiĭ, V. V.; Smotrov, M. N. An explicit formula for the number of classes of primitive hyperbolic elements in the group \(\Gamma_{0}(N)\). (English) Zbl 1257.30045 Sb. Math. 199, No. 7, 1009-1031 (2008); translation from Mat. Sb. 199, No. 7, 63-84 (2008). MSC: 30F35 20H05 20H10 PDFBibTeX XMLCite \textit{V. V. Golovchanskiĭ} and \textit{M. N. Smotrov}, Sb. Math. 199, No. 7, 1009--1031 (2008; Zbl 1257.30045); translation from Mat. Sb. 199, No. 7, 63--84 (2008) Full Text: DOI
Welter, Michael On integer-valued entire functions at the Gaussian integers satisfying additional congruence conditions. (English) Zbl 1161.30014 Ann. Sci. Math. Qué. 31, No. 1, 101-109 (2007). Reviewer: Olga M. Katkova (Kharkov) MSC: 30D15 PDFBibTeX XMLCite \textit{M. Welter}, Ann. Sci. Math. Qué. 31, No. 1, 101--109 (2007; Zbl 1161.30014)
Katz, Mikhail G.; Schaps, Mary; Vishne, Uzi Logarithmic growth of systole of arithmetic Riemann surfaces along congruence subgroups. (English) Zbl 1149.53025 J. Differ. Geom. 76, No. 3, 399-422 (2007). Reviewer: Gou Nakamura (Toyota) MSC: 53C22 30F35 15B33 11R52 PDFBibTeX XMLCite \textit{M. G. Katz} et al., J. Differ. Geom. 76, No. 3, 399--422 (2007; Zbl 1149.53025) Full Text: DOI arXiv Euclid
Tekcan, Ahmet Signatures of the special congruence subgroup of the extended modular group. (English) Zbl 1128.11021 Southeast Asian Bull. Math. 30, No. 6, 1147-1156 (2006). Reviewer: Andreas Schweizer (Exeter) MSC: 11F06 30F35 PDFBibTeX XMLCite \textit{A. Tekcan}, Southeast Asian Bull. Math. 30, No. 6, 1147--1156 (2006; Zbl 1128.11021)
Özdemir, Hasan Basri; Demirci, Musa; Cangül, Ismail Naci A method for finding normal subgroups of Hecke groups. (English) Zbl 1105.20043 Proc. Jangjeon Math. Soc. 9, No. 1, 51-55 (2006). MSC: 20H05 20H10 11F06 30F35 20E07 PDFBibTeX XMLCite \textit{H. B. Özdemir} et al., Proc. Jangjeon Math. Soc. 9, No. 1, 51--55 (2006; Zbl 1105.20043)
Katok, Svetlana; Ugarcovici, Ilie Arithmetic coding of geodesics on the modular surface via continued fractions. (English) Zbl 1147.37020 Dajani, K. (ed.) et al., European women in mathematics. Proceedings of the 11th conference, EWM, Marseille, France, November 3–7, 2003. Amsterdam: Centrum voor Wiskunde en Informatica (CWI) (ISBN 90-6196-527-6/pbk). CWI Tract 135, 59-77 (2005). Reviewer: Mark Sheingorn (New York) MSC: 37D40 30F45 11H55 20H05 37B10 11F06 11J70 PDFBibTeX XMLCite \textit{S. Katok} and \textit{I. Ugarcovici}, in: European women in mathematics. Proceedings of the 11th conference, EWM, Marseille, France, November 3--7, 2003. Amsterdam: Centrum voor Wiskunde en Informatica (CWI). 59--77 (2005; Zbl 1147.37020)
Özgür, Nihal Yilmaz; Keskin, Refik Proof of a conjecture related to the parabolic class numbers of some Fuchsian groups. (English) Zbl 1099.20025 Acta Math. Sci., Ser. B, Engl. Ed. 25, No. 2, 215-222 (2005). Reviewer: Ismail Naci Cangül (Bursa) MSC: 20H10 20H05 30F35 11F06 PDFBibTeX XMLCite \textit{N. Y. Özgür} and \textit{R. Keskin}, Acta Math. Sci., Ser. B, Engl. Ed. 25, No. 2, 215--222 (2005; Zbl 1099.20025) Full Text: DOI
Keskin, Refik A note on some Fuchsian groups. (English) Zbl 1081.20057 Algebra Colloq. 12, No. 1, 139-148 (2005). Reviewer: Ismail Naci Cangül (Bursa) MSC: 20H10 20H05 30F35 PDFBibTeX XMLCite \textit{R. Keskin}, Algebra Colloq. 12, No. 1, 139--148 (2005; Zbl 1081.20057) Full Text: DOI
Ivrissimtzis, Ioannis; Singerman, David Regular maps and principal congruence subgroups of Hecke groups. (English) Zbl 1075.20022 Eur. J. Comb. 26, No. 3-4, 437-456 (2005). Reviewer: Ismail Naci Cangül (Bursa) MSC: 20H10 20E07 05C10 20H05 30F35 PDFBibTeX XMLCite \textit{I. Ivrissimtzis} and \textit{D. Singerman}, Eur. J. Comb. 26, No. 3--4, 437--456 (2005; Zbl 1075.20022) Full Text: DOI
Cummins, C. J. Congruence subgroups of groups commensurable with \(\text{PSL}(2,\mathbb Z)\) of genus \(0\) and \(1\). (English) Zbl 1099.11022 Exp. Math. 13, No. 3, 361-382 (2004). Reviewer: A. W. Mason (Glasgow) MSC: 11F06 11F03 30F35 11F22 20H05 PDFBibTeX XMLCite \textit{C. J. Cummins}, Exp. Math. 13, No. 3, 361--382 (2004; Zbl 1099.11022) Full Text: DOI Euclid EuDML
Chua, Kok Seng; Lang, Mong Lung Congruence subgroups associated to the Monster. (English) Zbl 1099.11021 Exp. Math. 13, No. 3, 343-360 (2004). Reviewer: A. W. Mason (Glasgow) MSC: 11F06 20H05 30F35 11F22 PDFBibTeX XMLCite \textit{K. S. Chua} and \textit{M. L. Lang}, Exp. Math. 13, No. 3, 343--360 (2004; Zbl 1099.11021) Full Text: DOI Euclid EuDML
Kim, Daeyong Discreteness criterions of isometric subgroups for quaternionic hyperbolic space. (English) Zbl 1086.20025 Geom. Dedicata 106, 51-78 (2004). Reviewer: Ismail Naci Cangül (Bursa) MSC: 20H10 20H05 30F35 30F40 57S30 PDFBibTeX XMLCite \textit{D. Kim}, Geom. Dedicata 106, 51--78 (2004; Zbl 1086.20025) Full Text: DOI
Cummins, C. J.; Pauli, S. Congruence subgroups of \(\text{PSL} (2,\mathbb Z)\). (English) Zbl 1087.11026 Winternitz, P. (ed.) et al., Symmetry in physics. In memory of Robert T. Sharp. Proceedings of the workshop symmetries in physics, Montréal, Canada, September 12–14, 2002. Providence, RI: American Mathematical Society (AMS) (ISBN 0-8218-3409-6/pbk). CRM Proceedings & Lecture Notes 34, 23-29 (2004). Reviewer: Taro Horie (Shiroko) MSC: 11F06 11F22 30F35 PDFBibTeX XMLCite \textit{C. J. Cummins} and \textit{S. Pauli}, CRM Proc. Lect. Notes 34, 23--29 (2004; Zbl 1087.11026)
Chen, Kwang-Wu An interesting lemma for regular \(C\)-fractions. (English) Zbl 1083.30003 J. Integer Seq. 6, No. 4, Art. 03.4.8, 9 p. (2003). Reviewer: Marcel G. de Bruin (Haarlem) MSC: 30B70 40A15 PDFBibTeX XMLCite \textit{K.-W. Chen}, J. Integer Seq. 6, No. 4, Art. 03.4.8, 9 p. (2003; Zbl 1083.30003) Full Text: EuDML EMIS
Keskin, Refik Remarks on some Fuchsian groups. (English) Zbl 1076.20036 Vietnam J. Math. 31, No. 4, 411-419 (2003). Reviewer: Ismail Naci Cangül (Bursa) MSC: 20H10 20H05 30F35 PDFBibTeX XMLCite \textit{R. Keskin}, Vietnam J. Math. 31, No. 4, 411--419 (2003; Zbl 1076.20036)
Cummins, C. J.; Pauli, S. Congruence subgroups of \(\text{PSL}(2,\mathbb{Z}\)) of genus less than or equal to 24. (English) Zbl 1060.11021 Exp. Math. 12, No. 2, 243-255 (2003). Reviewer: Marvin I. Knopp (Philadelphia) MSC: 11F06 11-04 11F22 30F35 PDFBibTeX XMLCite \textit{C. J. Cummins} and \textit{S. Pauli}, Exp. Math. 12, No. 2, 243--255 (2003; Zbl 1060.11021) Full Text: DOI Euclid EuDML
Schmidt, Thomas A.; Smith, Katherine M. Galois orbits of principle congruence Hecke curves. (English) Zbl 1046.11046 J. Lond. Math. Soc., II. Ser. 67, No. 3, 673-685 (2003). Reviewer: Jürgen Wolfart (Frankfurt/Main) MSC: 11G30 05C10 14H30 14G32 20H05 30F10 PDFBibTeX XMLCite \textit{T. A. Schmidt} and \textit{K. M. Smith}, J. Lond. Math. Soc., II. Ser. 67, No. 3, 673--685 (2003; Zbl 1046.11046) Full Text: DOI
Lascurain Orive, Antonio Some presentations for \(\overline{\Gamma}_0(N)\). (English) Zbl 1062.11021 Conform. Geom. Dyn. 6, 33-60 (2002). MSC: 11F06 20H05 30F35 PDFBibTeX XMLCite \textit{A. Lascurain Orive}, Conform. Geom. Dyn. 6, 33--60 (2002; Zbl 1062.11021) Full Text: DOI
Mayer, D.; Neunhäuserer, J. An isomorphism between polynomial eigenfunctions of the transfer operator and the Eichler cohomology for modular groups. (English) Zbl 1029.11011 Math. Phys. Electron. J. 7, No. 1, 18 p. (2001). Reviewer: Anton Deitmar (Exeter) MSC: 11F06 37C30 30F35 11M36 11F75 11F72 PDFBibTeX XMLCite \textit{D. Mayer} and \textit{J. Neunhäuserer}, Math. Phys. Electron. J. 7, No. 1, 18 p. (2001; Zbl 1029.11011) Full Text: arXiv EuDML EMIS
Ono, Takashi On certain cohomology sets attached to Riemann surfaces. (English) Zbl 0967.11020 Proc. Japan Acad., Ser. A 76, No. 7, 116-117 (2000). Reviewer: Anton Deitmar (Exeter) MSC: 11F75 30F40 PDFBibTeX XMLCite \textit{T. Ono}, Proc. Japan Acad., Ser. A 76, No. 7, 116--117 (2000; Zbl 0967.11020) Full Text: DOI
McKay, John; Sebbar, Abdellah Fuchsian groups, automorphic functions and Schwarzians. (English) Zbl 0958.11030 Math. Ann. 318, No. 2, 255-275 (2000). Reviewer: Jürgen Elstrodt (Münster) MSC: 11F11 30F35 20H05 11F03 11F20 11F27 PDFBibTeX XMLCite \textit{J. McKay} and \textit{A. Sebbar}, Math. Ann. 318, No. 2, 255--275 (2000; Zbl 0958.11030) Full Text: DOI
Keskin, Refik On the parabolic class number of some Fuchsian groups. (English) Zbl 1008.20044 Note Mat. 19, No. 2, 275-283 (1999). Reviewer: Bruno Zimmermann (Trieste) MSC: 20H10 20H05 30F35 11F06 PDFBibTeX XMLCite \textit{R. Keskin}, Note Mat. 19, No. 2, 275--283 (1999; Zbl 1008.20044)
Kaczorowski, Jerzy Boundary values of Dirichlet series and the distribution of primes. (English) Zbl 0909.11038 Balog, A. (ed.) et al., European congress of mathematics (ECM), Budapest, Hungary, July 22–26, 1996. Volume I. Basel: Birkhäuser. Prog. Math. 168, 237-254 (1998). Reviewer: Wolfgang Schwarz (Frankfurt am Main) MSC: 11N05 11M41 30B50 11-02 11N13 PDFBibTeX XMLCite \textit{J. Kaczorowski}, Prog. Math. 168, 237--254 (1998; Zbl 0909.11038)
Schmutz Schaller, Paul Extremal Riemann surfaces with a large number of systoles. (English) Zbl 0867.30028 Quine, J. R. (ed.) et al., Extremal Riemann surfaces. From the proceedings of the AMS special session with related papers, January 4–5, 1995, San Francisco, CA, USA. Providence, RI: American Mathematical Society. Contemp. Math. 201, 9-19 (1997). Reviewer: C.Maclachlan (Aberdeen) MSC: 30F10 20H05 30F99 11H55 PDFBibTeX XMLCite \textit{P. Schmutz Schaller}, Contemp. Math. 201, 9--19 (1997; Zbl 0867.30028)
Farkas, H. M.; Kra, I. Theta constant identities with applications to combinatorial number theory. (English) Zbl 0886.11026 Dodziuk, Józef (ed.) et al., Lipa’s legacy. Proceedings of the 1st Bers colloquium, New York, NY, October 19–20, 1995. Providence, RI: American Mathematical Society. Contemp. Math. 211, 227-252 (1997). Reviewer: M.I.Knopp (Philadelphia) MSC: 11F27 11F11 30F10 30F30 30F35 11P82 PDFBibTeX XMLCite \textit{H. M. Farkas} and \textit{I. Kra}, Contemp. Math. 211, 227--252 (1997; Zbl 0886.11026)
Morishita, Masanori On a family of subgroups of the Teichmüller modular group of genus two obtained from the Jones representation. (English) Zbl 0891.20029 J. Math. Sci., Tokyo 4, No. 2, 403-415 (1997). Reviewer: Hiroaki Nakamura (Tokyo) MSC: 20F34 20F38 30F60 11R33 20H05 11F70 PDFBibTeX XMLCite \textit{M. Morishita}, J. Math. Sci., Tokyo 4, No. 2, 403--415 (1997; Zbl 0891.20029)
Cangül, Ismail Naci About some normal subgroups of Hecke groups. (English) Zbl 0884.20031 Turk. J. Math. 21, No. 2, 143-151 (1997). Reviewer: T.Başkan (Balikesir) MSC: 20H10 20E07 30F35 PDFBibTeX XMLCite \textit{I. N. Cangül}, Turk. J. Math. 21, No. 2, 143--151 (1997; Zbl 0884.20031)
Ratcliffe, John G.; Tschantz, Steven T. Volumes of integral congruence hyperbolic manifolds. (English) Zbl 0873.11031 J. Reine Angew. Math. 488, 55-78 (1997). Reviewer: J.G.Ratcliffe (Nashville) MSC: 11F06 20H05 22E40 30F40 PDFBibTeX XMLCite \textit{J. G. Ratcliffe} and \textit{S. T. Tschantz}, J. Reine Angew. Math. 488, 55--78 (1997; Zbl 0873.11031) Full Text: EuDML
Akbaş, M.; Başkan, T. Suborbital graphs for the normalizer of \(\Gamma_ 0(N)\). (English) Zbl 0866.20042 Turk. J. Math. 20, No. 3, 379-387 (1996). Reviewer: P.Waterman (De Kalb) MSC: 20H05 11F06 30F35 20E07 05C25 PDFBibTeX XMLCite \textit{M. Akbaş} and \textit{T. Başkan}, Turk. J. Math. 20, No. 3, 379--387 (1996; Zbl 0866.20042)
Jones, Gareth; Singerman, David Belyĭ functions, hypermaps and Galois groups. (English) Zbl 0853.14017 Bull. Lond. Math. Soc. 28, No. 6, 561-590 (1996). Reviewer: G.Jones (Southampton) MSC: 14H55 11R32 05C10 11G30 14H30 11F06 20F65 30F10 PDFBibTeX XML Full Text: DOI
Farkas, Hershel M.; Kopeliovich, Yaacov; Kra, Irwin Uniformizations of modular curves. (English) Zbl 0860.11022 Commun. Anal. Geom. 4, No. 2, 207-259 (1996). Reviewer: F.W.Knöller (Marburg) MSC: 11F11 30F10 11F27 20H05 14E20 PDFBibTeX XMLCite \textit{H. M. Farkas} et al., Commun. Anal. Geom. 4, No. 2, 207--259 (1996; Zbl 0860.11022) Full Text: DOI
Schmutz, Paul Systoles of arithmetic surfaces and Markoff spectrum. (English) Zbl 0853.11054 Math. Ann. 305, No. 1, 191-203 (1996). Reviewer: Thomas A.Schmidt (Corvallis) MSC: 11J06 20H05 11F06 11H50 11H55 30F45 PDFBibTeX XMLCite \textit{P. Schmutz}, Math. Ann. 305, No. 1, 191--203 (1996; Zbl 0853.11054) Full Text: DOI EuDML
Farkas, Hershel M.; Kra, Irwin Automorphic forms for subgroups of the modular group. II: Groups containing congruence subgroups. (English) Zbl 0993.11022 J. Anal. Math. 70, 91-156 (1996). MSC: 11F11 11F27 30F10 14H55 PDFBibTeX XMLCite \textit{H. M. Farkas} and \textit{I. Kra}, J. Anal. Math. 70, 91--156 (1996; Zbl 0993.11022) Full Text: DOI
Farkas, Hershel M.; Kopeliovich, Yaacov; Kra, Irwin Corrigendum to “Uniformization of modular curves”. (English) Zbl 0957.11023 Commun. Anal. Geom. 4, No. 4, 681 (1996). MSC: 11F11 30F10 11F27 20H05 14E20 PDFBibTeX XMLCite \textit{H. M. Farkas} et al., Commun. Anal. Geom. 4, No. 4, 681 (1996; Zbl 0957.11023) Full Text: DOI
Karatsuba, A. A. Complex analysis in number theory. (English) Zbl 0856.11038 Boca Raton, FL: CRC Press. ix, 187 p. (1995). Reviewer: A.Ivić (Beograd) MSC: 11M06 11-02 30-02 11N37 11N13 11M26 PDFBibTeX XMLCite \textit{A. A. Karatsuba}, Complex analysis in number theory. Boca Raton, FL: CRC Press (1995; Zbl 0856.11038)
Wang, Xiantao Classification, system of generators and discreteness criterion for higher dimensional Möbius subgroups. (Chinese. English summary) Zbl 0816.20038 Acta Math. Sin. 38, No. 1, 38-44 (1995). MSC: 20H10 20F05 30F35 51F20 PDFBibTeX XMLCite \textit{X. Wang}, Acta Math. Sin. 38, No. 1, 38--44 (1995; Zbl 0816.20038)
Schmutz, Paul Congruence subgroups and maximal Riemann surfaces. (English) Zbl 0804.32010 J. Geom. Anal. 4, No. 2, 207-218 (1994). Reviewer: A.D.Mednykh (Novosibirsk) MSC: 32G15 30F60 53C22 20H05 58J50 PDFBibTeX XMLCite \textit{P. Schmutz}, J. Geom. Anal. 4, No. 2, 207--218 (1994; Zbl 0804.32010) Full Text: DOI
Vulakh, L. Ya. Maximal Fuchsian subgroups of extended Bianchi groups. (English) Zbl 0796.20039 Pollington, Andrew D. (ed.) et al., Number theory with an emphasis on the Markoff spectrum. Mainly the proceedings of the conference on the Markoff spectrum and diophantine approximation and analytic number theory at Brigham Young University in Provo, Utah, 1991. New York: Marcel Dekker, Inc.. Lect. Notes Pure Appl. Math. 147, 297-310 (1993). Reviewer: G.Rosenberger (Dortmund) MSC: 20H10 11F06 30F40 20E28 20H05 20E07 PDFBibTeX XMLCite \textit{L. Ya. Vulakh}, Lect. Notes Pure Appl. Math. 147, 297--310 (1993; Zbl 0796.20039)
Sheingorn, Mark The \(\sqrt p\) Riemann surface. (English) Zbl 0782.11014 Acta Arith. 63, No. 3, 255-266 (1993). Reviewer: G.Rosenberger (Dortmund) MSC: 11F06 30F20 11D09 11J70 30F35 PDFBibTeX XMLCite \textit{M. Sheingorn}, Acta Arith. 63, No. 3, 255--266 (1993; Zbl 0782.11014) Full Text: DOI EuDML
Ivanov, Nikolaj V. Subgroups of Teichmüller modular groups. Translated from the Russian by E. J. F. Primrose. (English) Zbl 0776.57001 Translations of Mathematical Monographs. 115. Providence, RI: American Mathematical Society (AMS). xii, 127 p. (1992). Reviewer: B.Zimmermann (Trieste) MSC: 57-02 57M99 20H05 30F60 20F65 PDFBibTeX XMLCite \textit{N. V. Ivanov}, Subgroups of Teichmüller modular groups. Translated from the Russian by E. J. F. Primrose. Providence, RI: American Mathematical Society (1992; Zbl 0776.57001)
Maclachlan, C.; Rosenberger, G. Two-generator arithmetic Fuchsian groups. II. (English) Zbl 0786.20032 Math. Proc. Camb. Philos. Soc. 111, No. 1, 7-24 (1992). Reviewer: S.J.Patterson (Göttingen) MSC: 20H10 20H05 11F06 30F35 PDFBibTeX XMLCite \textit{C. Maclachlan} and \textit{G. Rosenberger}, Math. Proc. Camb. Philos. Soc. 111, No. 1, 7--24 (1992; Zbl 0786.20032) Full Text: DOI
Mason, A. W.; Odoni, R. W. K.; Stothers, W. W. Almost all Bianchi groups have free, non-cyclic quotients. (English) Zbl 0758.20009 Math. Proc. Camb. Philos. Soc. 111, No. 1, 1-6 (1992). Reviewer: G.Rosenberger (Dortmund) MSC: 20H10 11F06 20E07 30F40 20H05 11H50 PDFBibTeX XMLCite \textit{A. W. Mason} et al., Math. Proc. Camb. Philos. Soc. 111, No. 1, 1--6 (1992; Zbl 0758.20009) Full Text: DOI
Hilden, Hugh M.; Lozano, Maria Teresa; Montesinos-Amilibia, Jose Maria A characterization of arithmetic subgroups of \(SL(2,{\mathbb{R}{}})\) and \(SL(2,{\mathbb{C}{}})\). (English) Zbl 0786.20031 Math. Nachr. 159, 245-270 (1992). Reviewer: C.Maclachlan (Aberdeen) MSC: 20H10 20H05 11F06 30F40 PDFBibTeX XMLCite \textit{H. M. Hilden} et al., Math. Nachr. 159, 245--270 (1992; Zbl 0786.20031) Full Text: DOI
Turaev, V. G. Quantum representations of modular groups and Maslov indices. (English) Zbl 0812.20022 Topology ’90, Contrib. Res. Semester Low Dimensional Topol., Columbus/OH (USA) 1990, Ohio State Univ. Math. Res. Inst. Publ. 1, 381-390 (1992). Reviewer: J.Wolfart (Frankfurt / Main) MSC: 20F38 20C25 30F60 17B37 20H05 81R05 PDFBibTeX XMLCite \textit{V. G. Turaev}, Ohio State Univ. Math. Res. Inst. Publ. 1, 381--390 (1992; Zbl 0812.20022)
Akbas, M.; Singerman, D. Symmetries of modular surfaces. (English) Zbl 0767.11021 Discrete groups and geometry, Proc. Conf., Birmingham/UK 1991, Lond. Math. Soc. Lect. Note Ser. 173, 1-9 (1992). Reviewer: M.Sheingorn (New York) MSC: 11F06 20H10 30F35 20H05 PDFBibTeX XMLCite \textit{M. Akbas} and \textit{D. Singerman}, Lond. Math. Soc. Lect. Note Ser. 173, 1--9 (1992; Zbl 0767.11021)
Sheingorn, Mark Effective lower bounds for the norm of the Poincaré \(\Theta\)-operator. (English) Zbl 0729.11021 Trans. Am. Math. Soc. 325, No. 1, 453-463 (1991). Reviewer: K.I.Ohta (Tokyo) MSC: 11F12 11F11 30F35 PDFBibTeX XMLCite \textit{M. Sheingorn}, Trans. Am. Math. Soc. 325, No. 1, 453--463 (1991; Zbl 0729.11021) Full Text: DOI
Furusawa, Harushi The exponent of convergence of Poincaré series of combination groups. (English) Zbl 0739.20007 Tôhoku Math. J., II. Ser. 43, No. 1, 1-7 (1991). Reviewer: N.V.Kuznetsov (Khabarovsk) MSC: 20E06 20H05 20F05 30F35 PDFBibTeX XMLCite \textit{H. Furusawa}, Tôhoku Math. J. (2) 43, No. 1, 1--7 (1991; Zbl 0739.20007) Full Text: DOI
Maclachlan, C.; Reid, A. W. Parametrizing Fuchsian subgroups of the Bianchi groups. (English) Zbl 0739.20020 Can. J. Math. 43, No. 1, 158-181 (1991). Reviewer: J.Elstrodt (Münster) MSC: 20H10 11F06 20H05 30F35 20G30 20E07 30F40 PDFBibTeX XMLCite \textit{C. Maclachlan} and \textit{A. W. Reid}, Can. J. Math. 43, No. 1, 158--181 (1991; Zbl 0739.20020) Full Text: DOI
Akbaş, Mehmet; Singerman, David The normalizer of \(\Gamma_ 0(N)\) in \(\mathrm{PSL}(2,\mathbb R)\). (English) Zbl 0709.20025 Glasg. Math. J. 32, No. 3, 317-327 (1990). Reviewer: G.Rosenberger MSC: 20H05 20H10 11F06 30F35 PDFBibTeX XMLCite \textit{M. Akbaş} and \textit{D. Singerman}, Glasg. Math. J. 32, No. 3, 317--327 (1990; Zbl 0709.20025) Full Text: DOI
Fine, Benjamin The Euclidean Bianchi groups. (English) Zbl 0703.20046 Commun. Algebra 18, No. 8, 2461-2484 (1990). Reviewer: J.Elstrodt MSC: 20H05 20H10 30F40 20E06 20E07 11F06 PDFBibTeX XMLCite \textit{B. Fine}, Commun. Algebra 18, No. 8, 2461--2484 (1990; Zbl 0703.20046) Full Text: DOI
Sheingorn, Mark Rational solutions of \(\sum^{3}_{i=1}a_ ix^ 2_ i=dx_ 1x_ 2x_ 3\) and simple closed geodesics on Fricke surfaces. (English) Zbl 0655.10024 Holomorphic functions and moduli I, Proc. Workshop, Berkeley/Calif. 1986, Publ., Math. Sci. Res. Inst. 10, 229-236 (1988). Reviewer: G.Rosenberger MSC: 11F06 20H05 20H10 30F35 PDFBibTeX XML
Singerman, David PSL(2,q) as an image of the extended modular group with applications to group actions on surfaces. (English) Zbl 0588.20029 Proc. Edinb. Math. Soc., II. Ser. 30, 143-151 (1987). MSC: 20H05 20H10 30F35 11F03 20F65 30F40 PDFBibTeX XMLCite \textit{D. Singerman}, Proc. Edinb. Math. Soc., II. Ser. 30, 143--151 (1987; Zbl 0588.20029) Full Text: DOI
Sipe, Patricia L. Some finite quotients of the mapping class group of a surface. (English) Zbl 0596.57007 Proc. Am. Math. Soc. 97, 515-524 (1986). Reviewer: B.Zimmermann MSC: 57N05 57R50 20H05 30F10 PDFBibTeX XMLCite \textit{P. L. Sipe}, Proc. Am. Math. Soc. 97, 515--524 (1986; Zbl 0596.57007) Full Text: DOI
Thompson, John G. Some finite groups which appear as Gal L/K, where \(K\subseteq {\mathbb{Q}}(\mu _ n)\). (English) Zbl 0582.12006 Group theory, Proc. Int. Symp., Beijing/China 1984, Lect. Notes Math. 1185, 210-230 (1986). MSC: 11R32 20D08 20F29 11R58 20D06 20B25 30F10 14H05 12F10 PDFBibTeX XML
Maclachlan, C. On the structure of certain arithmetic subgroups of \(SL_ 2({\mathbb{R}})\). (English) Zbl 0559.20035 Math. Proc. Camb. Philos. Soc. 97, 211-217 (1985). Reviewer: G.Rosenberger MSC: 20H10 11F06 30F35 20E07 20H05 20E06 PDFBibTeX XMLCite \textit{C. Maclachlan}, Math. Proc. Camb. Philos. Soc. 97, 211--217 (1985; Zbl 0559.20035) Full Text: DOI
Sibner, Robert J. The extended modular group and sums of squares. (English) Zbl 0593.10019 Complex Variables, Theory Appl. 3, 347-357 (1984). Reviewer: Gerhard Rosenberger (Hamburg) MSC: 11F06 11E16 20H05 20H10 30F99 11P05 PDFBibTeX XMLCite \textit{R. J. Sibner}, Complex Variables, Theory Appl. 3, 347--357 (1984; Zbl 0593.10019) Full Text: DOI
Ivanov, N. V. Algebraic properties of the Teichmüller modular group. (English. Russian original) Zbl 0586.20026 Sov. Math., Dokl. 29, 288-291 (1984); translation from Dokl. Akad. Nauk SSSR 275, 786-789 (1984). Reviewer: G.A.Margulis MSC: 20H05 32G15 57R50 20F38 20J05 30F35 PDFBibTeX XMLCite \textit{N. V. Ivanov}, Sov. Math., Dokl. 29, 288--291 (1984; Zbl 0586.20026); translation from Dokl. Akad. Nauk SSSR 275, 786--789 (1984)
Thompson, John G. Some finite groups which appear as \(\mathrm{Gal } L/K\), where \(K\subseteq \mathbb{Q}(\mu_n)\). (English) Zbl 0552.12004 J. Algebra 89, 437-499 (1984). Reviewer: Norbert Klingen (Köln) MSC: 11R32 12F12 20D08 20F29 11R58 20D06 20H05 20B25 30F10 14H05 PDFBibTeX XMLCite \textit{J. G. Thompson}, J. Algebra 89, 437--499 (1984; Zbl 0552.12004) Full Text: DOI
Riley, Robert Applications of a computer implementation of Poincaré’s theorem on fundamental polyhedra. (English) Zbl 0528.51010 Math. Comput. 40, 607-632 (1983). MSC: 51M10 20H05 57M25 03D40 20-04 20G20 30F40 51-04 51M20 57-04 57N10 68W99 PDFBibTeX XMLCite \textit{R. Riley}, Math. Comput. 40, 607--632 (1983; Zbl 0528.51010) Full Text: DOI
Cohen, Jeffrey On covering Klein’s curve and generating projective groups. (English) Zbl 0496.20033 The geometric vein, The Coxeter Festschr., 511-518 (1982). MSC: 20H05 20E07 11F06 30F35 PDFBibTeX XML
Kudla, Stephen S.; Millson, John J. Geodesic cycles and the Weil representation. I: Quotients of hyperbolic space and Siegel modular forms. (English) Zbl 0495.10016 Compos. Math. 45, 207-271 (1982). MSC: 11F12 22E40 11F70 58A14 30F35 11F27 11F41 PDFBibTeX XMLCite \textit{S. S. Kudla} and \textit{J. J. Millson}, Compos. Math. 45, 207--271 (1982; Zbl 0495.10016) Full Text: Numdam EuDML
Fine, Benjamin Congruence subgroups of the Picard group. (English) Zbl 0461.20032 Can. J. Math. 32, 1474-1481 (1980). MSC: 20H05 11F06 30F35 20E06 PDFBibTeX XMLCite \textit{B. Fine}, Can. J. Math. 32, 1474--1481 (1980; Zbl 0461.20032) Full Text: DOI
Zimmerle, Alain Représentation de Poisson des séries d’Eisenstein, et formule sommatoire pour la transformation de Fourier sur le demi-plan de Poincaré. (French) Zbl 0413.10019 Series de Mathematiques Pures et Appliquees. Strasbourg: IRMA, Universite Louis Pasteur. 60 p. (1978). MSC: 11F11 22E30 30F35 43A85 PDFBibTeX XML
Newman, Morris Normalizers of modular groups. (English) Zbl 0372.20036 Math. Ann. 238, 123-129 (1978). MSC: 20H05 15B36 30F35 PDFBibTeX XMLCite \textit{M. Newman}, Math. Ann. 238, 123--129 (1978; Zbl 0372.20036) Full Text: DOI EuDML
Wolfart, Jürgen Eine Bemerkung über Heckes Modulgruppen. (German) Zbl 0364.10014 Arch. Math. 29, 72-77 (1977). MSC: 11F03 20H05 20H10 30F35 PDFBibTeX XMLCite \textit{J. Wolfart}, Arch. Math. 29, 72--77 (1977; Zbl 0364.10014) Full Text: DOI
Lyndon, Roger C. On the combinatorial Riemann-Hurwitz formula. (English) Zbl 0331.20008 Symp. math. 17, Anelli Funz. contin., Gruppi infin., Convegni 1973, 435-439 (1976). MSC: 20H05 30F35 PDFBibTeX XML
Parson, L. Alayne Non-congruence subgroups for the Hecke groups \(G(\sqrt{2})\) and \(G(\sqrt{3})\). (English) Zbl 0301.10024 Ill. J. Math. 19, 79-86 (1975). Reviewer: Gerhard Rosenberger MSC: 11F06 30F35 20H10 PDFBibTeX XMLCite \textit{L. A. Parson}, Ill. J. Math. 19, 79--86 (1975; Zbl 0301.10024)
Schoeneberg, B. Elliptic modular functions. An introduction. Translated from the German by J. R. Smart and E. A. Schwandt. (English) Zbl 0285.10016 Die Grundlehren der mathematischen Wissenschaften. Band 203. Berlin-Heidelberg-New York: Springer-Verlag. VIII, 232 p. with 22 fig. DM 68.00; $ 27.80 (1974). MSC: 11F03 11-01 30F35 20H05 PDFBibTeX XML