Kawaguchi, Ryo; Komeda, Jiryo Weierstrass semigroups satisfying MP equalities and curves on toric surfaces. (English) Zbl 1439.14111 Bull. Braz. Math. Soc. (N.S.) 51, No. 1, 107-123 (2020). MSC: 14H55 14M25 14H30 14H51 20M14 PDF BibTeX XML Cite \textit{R. Kawaguchi} and \textit{J. Komeda}, Bull. Braz. Math. Soc. (N.S.) 51, No. 1, 107--123 (2020; Zbl 1439.14111) Full Text: DOI
Komeda, Jiryo; Mase, Makiko Curves on weighted \(K3\) surfaces of degree two with symmetric Weierstrass semigroups. (English) Zbl 07196525 Tsukuba J. Math. 43, No. 1, 55-69 (2019). MSC: 14H55 14H50 14H30 20M14 PDF BibTeX XML Cite \textit{J. Komeda} and \textit{M. Mase}, Tsukuba J. Math. 43, No. 1, 55--69 (2019; Zbl 07196525) Full Text: DOI Euclid
Komeda, Jiryo; Takahashi, Takeshi Number of weak Galois-Weierstrass points with Weierstrass semigroups generated by two elements. (English) Zbl 1428.14055 J. Korean Math. Soc. 56, No. 6, 1463-1474 (2019). Reviewer: José Javier Etayo (Madrid) MSC: 14H55 14H50 14H30 20M14 PDF BibTeX XML Cite \textit{J. Komeda} and \textit{T. Takahashi}, J. Korean Math. Soc. 56, No. 6, 1463--1474 (2019; Zbl 1428.14055) Full Text: DOI
Kim, Seon Jeong; Komeda, Jiryo Double covers of plane curves of degree six with almost total flexes. (English) Zbl 1427.14065 Bull. Korean Math. Soc. 56, No. 5, 1159-1186 (2019). Reviewer: Edoardo Ballico (Povo) MSC: 14H55 14H50 14H30 20M14 PDF BibTeX XML Cite \textit{S. J. Kim} and \textit{J. Komeda}, Bull. Korean Math. Soc. 56, No. 5, 1159--1186 (2019; Zbl 1427.14065) Full Text: DOI
Komeda, Jiryo; Matsutani, Shigeki; Previato, Emma The sigma function for trigonal cyclic curves. (English) Zbl 1441.14145 Lett. Math. Phys. 109, No. 2, 423-447 (2019). Reviewer: Nathan Grieve (Ottawa) MSC: 14K25 14H40 14H55 PDF BibTeX XML Cite \textit{J. Komeda} et al., Lett. Math. Phys. 109, No. 2, 423--447 (2019; Zbl 1441.14145) Full Text: DOI
Kim, Seon Jeong; Komeda, Jiryo Weierstrass semigroups on double covers of plane curves of degree six with total flexes. (English) Zbl 1401.14158 Bull. Korean Math. Soc. 55, No. 2, 611-624 (2018). Reviewer: José Javier Etayo (Madrid) MSC: 14H55 14H50 14H30 20M14 PDF BibTeX XML Cite \textit{S. J. Kim} and \textit{J. Komeda}, Bull. Korean Math. Soc. 55, No. 2, 611--624 (2018; Zbl 1401.14158) Full Text: Link
Komeda, Jiryo; Ohbuch, Akira On \(\gamma \)-hyperelliptic Weierstrass semigroups of genus \(6\gamma +1\) and \(6\gamma \). (English) Zbl 1388.14099 Bull. Braz. Math. Soc. (N.S.) 48, No. 2, 209-218 (2017). Reviewer: Fernando Torres (Campinas) MSC: 14H55 14H30 14J26 PDF BibTeX XML Cite \textit{J. Komeda} and \textit{A. Ohbuch}, Bull. Braz. Math. Soc. (N.S.) 48, No. 2, 209--218 (2017; Zbl 1388.14099) Full Text: DOI
Komeda, Jiryo; Takahashi, Takeshi Relating Galois points to weak Galois Weierstrass points through double coverings of curves. (English) Zbl 1365.14048 J. Korean Math. Soc. 54, No. 1, 69-86 (2017). Reviewer: Maria Montanucci (Umbertide) MSC: 14H55 14H05 14H37 14H50 PDF BibTeX XML Cite \textit{J. Komeda} and \textit{T. Takahashi}, J. Korean Math. Soc. 54, No. 1, 69--86 (2017; Zbl 1365.14048) Full Text: DOI Link
Komeda, Jiryo; Matsutani, Shigeki; Previato, Emma The Riemann constant for a non-symmetric Weierstrass semigroup. (English) Zbl 1360.14090 Arch. Math. 107, No. 5, 499-509 (2016). Reviewer: Ahmed Lesfari (El Jadida) MSC: 14H55 14H50 14K25 14H40 PDF BibTeX XML Cite \textit{J. Komeda} et al., Arch. Math. 107, No. 5, 499--509 (2016; Zbl 1360.14090) Full Text: DOI arXiv
Komeda, Jiryo; Watanabe, Kenta On extensions of a double covering of plane curves and Weierstrass semigroups of the double covering type. (English) Zbl 1351.14022 Semigroup Forum 91, No. 2, 517-523 (2015). Reviewer: Fernando Torres (Campinas) MSC: 14H55 PDF BibTeX XML Cite \textit{J. Komeda} and \textit{K. Watanabe}, Semigroup Forum 91, No. 2, 517--523 (2015; Zbl 1351.14022) Full Text: DOI
Harui, Takeshi; Komeda, Jiryo Numerical semigroups of genus six and double coverings of curves of genus three. (English) Zbl 1342.14073 Semigroup Forum 91, No. 3, 601-610 (2015). Reviewer: Carlos Galindo (Castellón) MSC: 14H55 20M14 PDF BibTeX XML Cite \textit{T. Harui} and \textit{J. Komeda}, Semigroup Forum 91, No. 3, 601--610 (2015; Zbl 1342.14073) Full Text: DOI
Kim, Seon Jeong; Komeda, Jiryo Weierstrass semigroups on double covers of plane curves of degree 5. (English) Zbl 1327.14159 Kodai Math. J. 38, No. 2, 270-288 (2015). MSC: 14H55 14H30 20M14 14H50 PDF BibTeX XML Cite \textit{S. J. Kim} and \textit{J. Komeda}, Kodai Math. J. 38, No. 2, 270--288 (2015; Zbl 1327.14159) Full Text: DOI Euclid
Harui, Takeshi; Komeda, Jiryo Numerical semigroups of genus seven and double coverings of curves of genus three. (English) Zbl 1320.14051 Semigroup Forum 90, No. 2, 491-502 (2015). Reviewer: Takanori Ayano (Osaka) MSC: 14H55 14H45 20M14 PDF BibTeX XML Cite \textit{T. Harui} and \textit{J. Komeda}, Semigroup Forum 90, No. 2, 491--502 (2015; Zbl 1320.14051) Full Text: DOI
Harui, Takeshi; Komeda, Jiryo; Ohbuchi, Akira The Weierstrass semigroups on double covers of genus two curves. (English) Zbl 1316.14056 Tsukuba J. Math. 38, No. 2, 201-206 (2014). Reviewer: Takanori Ayano (Osaka) MSC: 14H55 14H45 20M14 PDF BibTeX XML Cite \textit{T. Harui} et al., Tsukuba J. Math. 38, No. 2, 201--206 (2014; Zbl 1316.14056) Full Text: DOI Euclid arXiv
Harui, Takeshi; Komeda, Jiryo Numerical semigroups of genus eight and double coverings of curves of genus three. (English) Zbl 1309.14026 Semigroup Forum 89, No. 3, 571-581 (2014). MSC: 14H45 20M14 PDF BibTeX XML Cite \textit{T. Harui} and \textit{J. Komeda}, Semigroup Forum 89, No. 3, 571--581 (2014; Zbl 1309.14026) Full Text: DOI
Kim, Seon Jeong; Komeda, Jiryo Weierstrass semigroups on double covers of genus 4 curves. (English) Zbl 1395.14028 J. Algebra 405, 142-167 (2014). MSC: 14H55 14H30 14H45 PDF BibTeX XML Cite \textit{S. J. Kim} and \textit{J. Komeda}, J. Algebra 405, 142--167 (2014; Zbl 1395.14028) Full Text: DOI
Matsutani, Shigeki; Komeda, Jiryo Sigma functions for a space curve of type \((3, 4, 5)\). (English) Zbl 1311.14033 J. Geom. Symmetry Phys. 30, 75-91 (2013). Reviewer: José Javier Etayo (Madrid) MSC: 14H55 PDF BibTeX XML Cite \textit{S. Matsutani} and \textit{J. Komeda}, J. Geom. Symmetry Phys. 30, 75--91 (2013; Zbl 1311.14033) Full Text: arXiv
Komeda, Jiryo; Matsutani, Shigeki; Previato, Emma The sigma function for Weierstrass semigroups \(\langle 3,7,8\rangle\) and \(\langle 6,13,14,15,16\rangle\). (English) Zbl 1284.14045 Int. J. Math. 24, No. 11, Article ID 1350085, 58 p. (2013). Reviewer: Ahmed Lesfari (El Jadida) MSC: 14H55 14H50 14K20 PDF BibTeX XML Cite \textit{J. Komeda} et al., Int. J. Math. 24, No. 11, Article ID 1350085, 58 p. (2013; Zbl 1284.14045) Full Text: DOI arXiv
Komeda, Jiryo Double coverings of curves and non-Weierstrass semigroups. (English) Zbl 1270.14014 Commun. Algebra 41, No. 1, 312-324 (2013). Reviewer: Fernando Torres (Campinas) MSC: 14H55 14H30 20M14 PDF BibTeX XML Cite \textit{J. Komeda}, Commun. Algebra 41, No. 1, 312--324 (2013; Zbl 1270.14014) Full Text: DOI
Komeda, Jiryo; Ohbuchi, Akira Weierstrass gap sequences at points of curves on some rational surfaces. (English) Zbl 1372.14028 Tsukuba J. Math. 36, No. 2, 217-233 (2012). MSC: 14H55 14H50 14H30 14J26 PDF BibTeX XML Cite \textit{J. Komeda} and \textit{A. Ohbuchi}, Tsukuba J. Math. 36, No. 2, 217--233 (2012; Zbl 1372.14028) Full Text: DOI Euclid
Komeda, Jiryo On Weierstrass semigroups of double coverings of genus three curves. (English) Zbl 1244.14025 Semigroup Forum 83, No. 3, 479-488 (2011). Reviewer: Fernando Torres (Campinas) MSC: 14H55 PDF BibTeX XML Cite \textit{J. Komeda}, Semigroup Forum 83, No. 3, 479--488 (2011; Zbl 1244.14025) Full Text: DOI
Harui, Takeshi; Kato, Takao; Komeda, Jiryo; Ohbuchi, Akira Quotient curves of smooth plane curves with automorphisms. (English) Zbl 1192.14028 Kodai Math. J. 33, No. 1, 164-172 (2010). Reviewer: Aaron Wootton (Portland) MSC: 14H51 PDF BibTeX XML Cite \textit{T. Harui} et al., Kodai Math. J. 33, No. 1, 164--172 (2010; Zbl 1192.14028) Full Text: DOI
Kim, Seon Jeong; Komeda, Jiryo The Weierstrass semigroups on the quotient curve of a plane curve of degree \(\leqslant 7\) by an involution. (English) Zbl 1171.14020 J. Algebra 322, No. 1, 137-152 (2009). MSC: 14H51 PDF BibTeX XML Cite \textit{S. J. Kim} and \textit{J. Komeda}, J. Algebra 322, No. 1, 137--152 (2009; Zbl 1171.14020) Full Text: DOI
Komeda, J.; Ohbuchi, A. Weierstrass points with first non-gap four on a double covering of a hyperelliptic curve. II. (English) Zbl 1224.14008 Serdica Math. J. 34, No. 4, 771-782 (2008). MSC: 14H55 14H30 14J26 PDF BibTeX XML Cite \textit{J. Komeda} and \textit{A. Ohbuchi}, Serdica Math. J. 34, No. 4, 771--782 (2008; Zbl 1224.14008) Full Text: EuDML
Harui, Takeshi; Komeda, Jiryo; Ohbuchi, Akira Double coverings between smooth plane curves. (English) Zbl 1145.14027 Kodai Math. J. 31, No. 2, 257-262 (2008). Reviewer: Cicero Carvalho (Uberlandia) MSC: 14H51 14H45 PDF BibTeX XML Cite \textit{T. Harui} et al., Kodai Math. J. 31, No. 2, 257--262 (2008; Zbl 1145.14027) Full Text: DOI
Komeda, Jiryo; Ohbuchi, Akira Existence of the non-primitive Weierstrass gap sequences on curves of genus 8. (English) Zbl 1133.14307 Bull. Braz. Math. Soc. (N.S.) 39, No. 1, 109-121 (2008). MSC: 14H55 14H30 14C20 PDF BibTeX XML Cite \textit{J. Komeda} and \textit{A. Ohbuchi}, Bull. Braz. Math. Soc. (N.S.) 39, No. 1, 109--121 (2008; Zbl 1133.14307) Full Text: DOI
Komeda, Jiryo; Ohbuchi, Akira On double coverings of a pointed non-singular curve with any Weierstrass semigroup. (English) Zbl 1154.14023 Tsukuba J. Math. 31, No. 1, 205-215 (2007). Reviewer: José Gilvan de Oliveira (Vitória) MSC: 14H55 14H30 14C20 PDF BibTeX XML Cite \textit{J. Komeda} and \textit{A. Ohbuchi}, Tsukuba J. Math. 31, No. 1, 205--215 (2007; Zbl 1154.14023) Full Text: DOI
Komeda, Jiryo Weierstrass semigroups whose minimum positive integers are even. (English) Zbl 1125.14015 Arch. Math. 89, No. 1, 52-59 (2007). Reviewer: Cicero Carvalho (Uberlandia) MSC: 14H55 14H30 14M25 PDF BibTeX XML Cite \textit{J. Komeda}, Arch. Math. 89, No. 1, 52--59 (2007; Zbl 1125.14015) Full Text: DOI
Homma, M.; Kim, S. J.; Komeda, J. A semigroup at a pair of Weierstrass points on a cyclic 4-gonal curve and a bielliptic curve. (English) Zbl 1107.14024 J. Algebra 305, No. 1, 1-17 (2006). Reviewer: Cicero Carvalho (Uberlandia) MSC: 14H55 14H45 PDF BibTeX XML Cite \textit{M. Homma} et al., J. Algebra 305, No. 1, 1--17 (2006; Zbl 1107.14024) Full Text: DOI
Kim, Seon Jeong; Komeda, Jiryo The Weierstrass semigroup of a pair of Galois Weierstrass points with prime degree on a curve. (English) Zbl 1082.14036 Bull. Braz. Math. Soc. (N.S.) 36, No. 1, 127-142 (2005). Reviewer: Ryutaro Horiuchi (Kyoto) MSC: 14H55 14H30 14H45 PDF BibTeX XML Cite \textit{S. J. Kim} and \textit{J. Komeda}, Bull. Braz. Math. Soc. (N.S.) 36, No. 1, 127--142 (2005; Zbl 1082.14036) Full Text: DOI
Komeda, J.; Ohbuchi, A. Weierstrass points with first non-gap four on a double covering of a hyperelliptic curve. (English) Zbl 1075.14029 Serdica Math. J. 30, No. 1, 43-54 (2004); corrigendum ibid. 32, No. 4, 375-378 (2006). Reviewer: Vesselin Drensky (Sofia) MSC: 14H55 14H30 14H40 20M14 PDF BibTeX XML Cite \textit{J. Komeda} and \textit{A. Ohbuchi}, Serdica Math. J. 30, No. 1, 43--54 (2004; Zbl 1075.14029) Full Text: Link EuDML
Kim, Seon Jeong; Komeda, Jiryo Weierstrass semigroups of a pair of points whose first nongaps are three. (English) Zbl 1026.14007 Geom. Dedicata 93, 113-119 (2002). Reviewer: E.Ballico (Povo) MSC: 14H55 14H51 14H10 PDF BibTeX XML Cite \textit{S. J. Kim} and \textit{J. Komeda}, Geom. Dedicata 93, 113--119 (2002; Zbl 1026.14007) Full Text: DOI
Komeda, Jiryo Weierstrass semigroups of a pair of points whose first non-gaps are three. (English) Zbl 0992.14504 RIMS Kokyuroku 1222, 58-63 (2001). MSC: 14H55 PDF BibTeX XML Cite \textit{J. Komeda}, RIMS Kokyuroku 1222, 58--63 (2001; Zbl 0992.14504)
Kim, Seon Jeong; Komeda, Jiryo The Weierstrass semigroup of a pair and moduli in \(\mathcal {M}_3\). (English) Zbl 1077.14534 Bol. Soc. Bras. Mat., Nova Sér. 32, No. 2, 149-157 (2001). MSC: 14H55 14H10 14H45 14H50 PDF BibTeX XML Cite \textit{S. J. Kim} and \textit{J. Komeda}, Bol. Soc. Bras. Mat., Nova Sér. 32, No. 2, 149--157 (2001; Zbl 1077.14534) Full Text: DOI
Kim, Seon Jeong; Komeda, Jiryo Numerical semigroups which cannot be realized as semigroups of Galois Weierstrass points. (English) Zbl 1076.14518 Arch. Math. 76, No. 4, 265-273 (2001). MSC: 14H55 PDF BibTeX XML Cite \textit{S. J. Kim} and \textit{J. Komeda}, Arch. Math. 76, No. 4, 265--273 (2001; Zbl 1076.14518) Full Text: DOI
Kim, Seon Jeong; Komeda, Jiryo Non-cyclic Weierstrass semigroups. (English) Zbl 1034.14014 Begehr, Heinrich G. W. (ed.) et al., Proceedings of the second ISAAC congress. Vol. 2. Proceedings of the International Society for Analysis, its Applications and Computation Congress, Fukuoka, Japan, August 16–21, 1999. Dordrecht: Kluwer Academic Publishers (ISBN 0-7923-6598-4/hbk). Int. Soc. Anal. Appl. Comput. 8, 993-1005 (2000). MSC: 14H55 14H30 PDF BibTeX XML Cite \textit{S. J. Kim} and \textit{J. Komeda}, in: Proceedings of the second ISAAC congress. Vol. 2. Proceedings of the International Society for Analysis, its Applications and Computation congress, Fukuoka, Japan, August 16--21, 1999. Dordrecht: Kluwer Academic Publishers. 993--1005 (2000; Zbl 1034.14014)
Komeda, Jiryo The Weierstrass semigroup of a pair and moduli in \({\mathcal M}_3\). (English) Zbl 0969.14501 RIMS Kokyuroku 1166, 138-143 (2000). MSC: 14H55 20M14 PDF BibTeX XML Cite \textit{J. Komeda}, RIMS Kokyuroku 1166, 138--143 (2000; Zbl 0969.14501)
Komeda, Jiryo Existence of the primitive Weierstrass gap sequences on curves of genus 9. (English) Zbl 1058.14055 Bol. Soc. Bras. Mat., Nova Sér. 30, No. 2, 125-137 (1999). MSC: 14H55 14H45 PDF BibTeX XML Cite \textit{J. Komeda}, Bol. Soc. Bras. Mat., Nova Sér. 30, No. 2, 125--137 (1999; Zbl 1058.14055) Full Text: DOI
Komeda, Jiryo Remarks on non-Weierstrass numerical semigroups. (English) Zbl 0971.14028 Shum, Kar-Ping (ed.) et al., Algebras and combinatorics. Papers from the international congress, ICAC’97, Hong Kong, August 1997. Singapore: Springer. 313-319 (1999). MSC: 14H55 20M14 PDF BibTeX XML Cite \textit{J. Komeda}, in: Algebras and combinatorics. Papers from the international congress, ICAC'97, Hong Kong, August 1997. Singapore: Springer. 313--319 (1999; Zbl 0971.14028)
Komeda, J. Non-Weierstrass numerical semigroups. (English) Zbl 0922.14022 Semigroup Forum 57, No. 2, 157-185 (1998). Reviewer: E.Ballico (Povo) MSC: 14H55 20M99 PDF BibTeX XML Cite \textit{J. Komeda}, Semigroup Forum 57, No. 2, 157--185 (1998; Zbl 0922.14022) Full Text: DOI
Komeda, Jiryo Cyclic coverings of an elliptic curve with two branch points and the gap sequences at the ramification points. (English) Zbl 0938.14012 Acta Arith. 81, No. 3, 275-297 (1997). Reviewer: E.Ballico (Povo) MSC: 14H55 14H52 11G05 14H30 14E20 PDF BibTeX XML Cite \textit{J. Komeda}, Acta Arith. 81, No. 3, 275--297 (1997; Zbl 0938.14012) Full Text: DOI EuDML
Komeda, Jiryo On the existence of Weierstrass gap sequences on curves of genus \(\leq 8\). (English) Zbl 0849.14011 J. Pure Appl. Algebra 97, No. 1, 51-71 (1994). Reviewer: E.Bujalance (Madrid) MSC: 14H55 14H45 PDF BibTeX XML Cite \textit{J. Komeda}, J. Pure Appl. Algebra 97, No. 1, 51--71 (1994; Zbl 0849.14011) Full Text: DOI
Komeda, Jiryo On the existence of Weierstrass points whose first non-gaps are five. (English) Zbl 0770.30038 Manuscr. Math. 76, No. 2, 193-211 (1992). Reviewer: C.Maclachlan (Aberdeen) MSC: 30F10 14H55 PDF BibTeX XML Cite \textit{J. Komeda}, Manuscr. Math. 76, No. 2, 193--211 (1992; Zbl 0770.30038) Full Text: DOI EuDML
Komeda, Jiryo On primitive Schubert indices of genus \(g\) and weight \(g-1\). (English) Zbl 0753.14028 J. Math. Soc. Japan 43, No. 3, 437-445 (1991). Reviewer: Vo Van Tan (Boston) MSC: 14H55 PDF BibTeX XML Cite \textit{J. Komeda}, J. Math. Soc. Japan 43, No. 3, 437--445 (1991; Zbl 0753.14028) Full Text: DOI
Komeda, Jiryo On Weierstrass points whose first non-gaps are four. (English) Zbl 0498.30053 J. Reine Angew. Math. 341, 68-86 (1983). MSC: 30F10 PDF BibTeX XML Cite \textit{J. Komeda}, J. Reine Angew. Math. 341, 68--86 (1983; Zbl 0498.30053) Full Text: DOI Crelle EuDML
Komeda, Jiryo On the existence of Weierstrass points with a certain semigroup generated by 4 elements. (English) Zbl 0546.14011 Tsukuba J. Math. 6, 237-270 (1982). Reviewer: G.Horrocks MSC: 14H55 14H10 PDF BibTeX XML Cite \textit{J. Komeda}, Tsukuba J. Math. 6, 237--270 (1982; Zbl 0546.14011) Full Text: DOI
Komeda, Jiryo First order deformations of cones over projectively normal hyperelliptic curves. (English) Zbl 0472.14008 Tsukuba J. Math. 4, 317-329 (1980). MSC: 14D15 14H45 PDF BibTeX XML Cite \textit{J. Komeda}, Tsukuba J. Math. 4, 317--329 (1980; Zbl 0472.14008) Full Text: DOI