Abstract
For p an odd prime, let
is called the generalized Suzuki curve. For f = 1 it was studied extensively in [1]. In [19] the case f > 1 was addressed. It turns out that these curves constitute new examples of maximal curves for suitable values of p and n. Whereas in [19] cohomological methods and computations were used to determine the zeta functions of these curves, the aim of this article is to adapt the approach from [1] to the case f > 1.
Funding statement: This work was supported by a research grant (VIL”52303”) from Villum Fonden.
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Communicated by: G. Korchmáros
References
[1] H. Borges, M. Coutinho, On the zeta function and the automorphism group of the generalized Suzuki curve. Trans. Amer. Math. Soc. 374 (2021), 1899–1917. MR4216727 Zbl 1457.1405310.1090/tran/8286Search in Google Scholar
[2] I. Bouw, W. Ho, B. Malmskog, R. Scheidler, P. Srinivasan, C. Vincent, Zeta functions of a class of Artin-Schreier curves with many automorphisms. In: Directions in number theory, volume 3 of Assoc. Women Math. Ser., 87–124, Springer 2016. MR3596578 Zbl 1378.1402510.1007/978-3-319-30976-7_4Search in Google Scholar
[3] E. Çakçak, F. Özbudak, Some Artin-Schreier type function fields over finite fields with prescribed genus and number of rational places. J. Pure Appl. Algebra 210 (2007), 113–135. MR2311175 Zbl 1234.1107710.1016/j.jpaa.2006.08.007Search in Google Scholar
[4] R. Coulter, M. Henderson, A note on the roots of trinomials over a finite field. Bull. Austral. Math. Soc. 69 (2004), 429–432. MR2066660 Zbl 1057.1106310.1017/S0004972700036200Search in Google Scholar
[5] R. Fuhrmann, F. Torres, On Weierstrass points and optimal curves. Rend. Circ. Mat. Palermo (2) Suppl. no. 51 (1998), 25–46. MR1631013 Zbl 1049.11062Search in Google Scholar
[6] A. García, H. Stichtenoth, Elementary abelian p-extensions of algebraic function fields. Manuscripta Math. 72 (1991), 67–79. MR1107453 Zbl 0739.1401510.1007/BF02568266Search in Google Scholar
[7] V. D. Goppa, Codes on algebraic curves. (Russian) Dokl. Akad. Nauk SSSR 259 (1981), 1289–1290. English translation: Soviet Math. Dokl. 24 (1981), no. 1, 170–172. MR628795 Zbl 0489.94014Search in Google Scholar
[8] V. D. Goppa, Geometry and codes, volume 24 of Mathematics and its Applications (Soviet Series) Kluwer 1988. MR1029027 Zbl 1097.1450210.1007/978-94-015-6870-8Search in Google Scholar
[9] J. P. Hansen, H. Stichtenoth, Group codes on certain algebraic curves with many rational points. Appl. Algebra Engrg. Comm. Comput. 1 (1990), 67–77. MR1325513 Zbl 0723.9400710.1007/BF01810849Search in Google Scholar
[10] J. W. P. Hirschfeld, G. Korchmáros, F. Torres, Algebraic curves over a finite field. Princeton Univ. Press 2008. MR2386879 Zbl 1200.1104210.1515/9781400847419Search in Google Scholar
[11] E. Kani, M. Rosen, Idempotent relations and factors of Jacobians. Math. Ann. 284 (1989), 307–327. MR1000113 Zbl 0652.1401110.1007/BF01442878Search in Google Scholar
[12] S. L. Kleiman, Algebraic cycles and the Weil conjectures. In: Dix exposés sur la cohomologie des schémas, volume 3 of Adv. Stud. Pure Math., 359–386, North-Holland, Amsterdam, 1968. MR292838 Zbl 0198.25902Search in Google Scholar
[13] N. Koblitz, Elliptic curve cryptosystems. Math. Comp. 48 (1987), 203–209. MR866109 Zbl 0622.9401510.1090/S0025-5718-1987-0866109-5Search in Google Scholar
[14] N. Koblitz, Hyperelliptic cryptosystems. J. Cryptology 1 (1989), 139–150. MR1007215 Zbl 0674.9401010.1007/BF02252872Search in Google Scholar
[15] G. Lachaud, Sommes d’Eisenstein et nombre de points de certaines courbes algébriques sur les corps finis, C. R. Acad. Sci. Paris Sér. I Math. 305 (1987), 729–732. MR920053 Zbl 0639.14013Search in Google Scholar
[16] R. Lidl, H. Niederreiter, Finite fields, volume 20 of Encyclopedia of Mathematics and its Applications. Cambridge Univ. Press 1997. MR1429394 Zbl 0866.11069Search in Google Scholar
[17] H.-G. Rück, H. Stichtenoth, A characterization of Hermitian function fields over finite fields. J. Reine Angew. Math. 457 (1994), 185–188. MR1305281 Zbl 0802.1105310.1515/crll.1994.457.185Search in Google Scholar
[18] H. Stichtenoth, Algebraic function fields and codes. Springer 1993. MR1251961 Zbl 0816.14011Search in Google Scholar
[19] T. Tsushima, On cohomology of generalized Suzuki curves and exponential sums. Finite Fields Appl. 93 (2024), Paper No. 102309, 30 pages. MR4652783 Zbl 1553.1106110.1016/j.ffa.2023.102309Search in Google Scholar
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Articles in the same Issue
- Frontmatter
- Combinatorics of stratified hyperbolic slices
- Godbersen’s conjecture for locally anti-blocking bodies
- A Hilbert metric for bounded symmetric domains
- On the generalized Suzuki curve
- The partition of PG(2, q3) arising from an order 3 planar collineation
- Well-rounded lattices from odd prime degree number fields in the ramified case
- Split Cayley hexagons via subalgebras of octonion algebras
- Relative Lipschitz saturation of complex algebraic varieties
- The prime grid contains arbitrarily large empty polygons
- The geometry of locally bounded rational functions
Articles in the same Issue
- Frontmatter
- Combinatorics of stratified hyperbolic slices
- Godbersen’s conjecture for locally anti-blocking bodies
- A Hilbert metric for bounded symmetric domains
- On the generalized Suzuki curve
- The partition of PG(2, q3) arising from an order 3 planar collineation
- Well-rounded lattices from odd prime degree number fields in the ramified case
- Split Cayley hexagons via subalgebras of octonion algebras
- Relative Lipschitz saturation of complex algebraic varieties
- The prime grid contains arbitrarily large empty polygons
- The geometry of locally bounded rational functions