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関数方程式と超越数論

Research Project

Project/Area Number 03640092
Research Category

Grant-in-Aid for General Scientific Research (C)

Allocation TypeSingle-year Grants
Research Field 代数学・幾何学
Research InstitutionKeio University

Principal Investigator

塩川 宇賢  慶應義塾大学, 理工学部・数理科学科, 教授 (00015835)

Co-Investigator(Kenkyū-buntansha) 仲田 均  慶應義塾大学, 理工学部・数理科学科, 助教授 (40118980)
渋谷 政昭  慶應義塾大学, 理工学部・数理科学科, 教授 (20146723)
榎本 彦衛  慶應義塾大学, 理工学部・数理科学科, 教授 (00011669)
菊地 紀夫  慶應義塾大学, 理工学部・数理科学科, 教授 (80090041)
伊藤 雄二  慶應義塾大学, 理工学部・数理科学科, 教授 (90112987)
Project Period (FY) 1991
Project Status Completed (Fiscal Year 1991)
Budget Amount *help
¥1,800,000 (Direct Cost: ¥1,800,000)
Fiscal Year 1991: ¥1,800,000 (Direct Cost: ¥1,800,000)
Keywords代数的独立性 / 超越数とMahlerの方法 / 数列のcomplexity / ビリヤ-ドに関するRauzy予想 / 正規数の構成 / ラプラシアンの行列式 / セルバ-グ.ゼ-タ / パンルヴェ方程式
Research Abstract

本研究の主な成果を列記する。研究の背景,相互の関連及び証明については、申請書及び別紙論文リストを参照されたい。1)関数f(z)=Σ__<n≧1>[θn+φ]z^nの代数点での値の代数的独立性が証明された。これはある2変数関数の関数方程式から得られる。2) 1)の応用として,2次元ビリヤ-ドにより定義される数列{[θn+φ]}n≧1の具体的記述が与えられる。3).3次元ビリヤ-ドにより定義される数列の複雑さに関するRauzy予想を証明した。又この数列の具体的記述も出来た。4)0以外の元が正規数であるような実数の部分環を具体的な構成することに成功した。5)多項式により生成される正規数及び素数列により生成される正規数に対して最良のdiscrepanuy評価を与えた。(以上塩川)。6)ある種の代数方程式のガロア群がSn(対称群)であることが示された(小松)。7)いくつかのセルバ-ク・ゼ-タ関数がラプラシアやルエル作用素の行列式で表示できることを示した。(小山)。8)ある拡大がパンルヴェ・梅村拡大に含まれるならば,それ自身パンルヴェ・梅村拡大であることが証明された(西岡)。9)パンルヴェ(V)などの非線形方程式の解の漸近的挙動を表わす表示式を得た(下村)。10)変分問題のモ-ス流の掲成法を提案し,その近似解の評価を求め,いくつかの変分問題においてモ-ス流の存在を示した。(菊地)。11)グラフに因子が存在するための(グラフの項点数と無関数な)十分条件を与えた。又3連結グラフの可縮辺についての研究を行った。(大田)。12) 完全2部グラフの星型樹化数の上限と下限を与え,それらが結列な場合に一致することを示した。また{1,3,…,2nー1}を和がkの部分集合の分割できるための必要十分条件をkが偶数の場合に解決した(榎本)。13)、ガウス数体上の連分数のmetrical theoryのアイディアをHeche群の連分数に適用して種々な結果を得た。

Report

(1 results)
  • 1991 Annual Research Report
  • Research Products

    (37 results)

All Other

All Publications (37 results)

  • [Publications] Y.Nakai and I.Shiokawa: "Discrepancy estimates of a class of nornaal numbers." Acta Arithmetica.

    • Related Report
      1991 Annual Research Report
  • [Publications] H.kano and I.Shiokawa: "Rings of normal and nonnormal numbers." プレプリント Research Report KSTS/RRー91/006. 1-17 (1991)

    • Related Report
      1991 Annual Research Report
  • [Publications] P.Arnoux,Ch.Mauduit,I.Shiokawa and J.Tamura: "Complexity of sequences defined by silliard in the cube." プレプリント.Prepublications Math.de l'uniuersite Paris VII. N°17. 1-10 (1992)

    • Related Report
      1991 Annual Research Report
  • [Publications] I.Shiokawa and J.Tamura: "Description of sequences defined by hilliard in the cube." プレプリント.(1992)

    • Related Report
      1991 Annual Research Report
  • [Publications] I.Shiokawa: "On the normal number defined by primes" プレプリント. (1992)

    • Related Report
      1991 Annual Research Report
  • [Publications] I.Shiokawa,J.Tamura.他.: "A conjecture of Rauzy on complexity of certain sequcnces." プレプリント. (1992)

    • Related Report
      1991 Annual Research Report
  • [Publications] H.Enomoto and Y.Usami: "The star arboucity of complete bipartite graphs" Yraph Theory,Combinatorics,and Applications.(John Wiley & Sons.Inc.). 389-396 (1991)

    • Related Report
      1991 Annual Research Report
  • [Publications] H.Enomoto,M.Mizutani,N.Tokushige: "A word pwbem in Coxeter semigroups." Discute Math.

    • Related Report
      1991 Annual Research Report
  • [Publications] H.Enomoto and M.Kano.: "Disjoint odd integer subsets having a constant even sum."

    • Related Report
      1991 Annual Research Report
  • [Publications] H.Nakada: "The nutrical theory of wntinued fractrons" Acts Arithmetica. 56. 279-289 (1991)

    • Related Report
      1991 Annual Research Report
  • [Publications] N.Kikuchi.: "An approach to the construction of Morse flows for variational functionals." NematicsーMathematical and Physical Aspects ed:J.M.Coron et al,Nato Adv.Sci.Inst.Ser C:Math.Phys.Sci.332. (1991)

    • Related Report
      1991 Annual Research Report
  • [Publications] N.Kikuchi: "Holder estimates of solutions for differenceーdefferential equations of ellipticーParabolic type" Numerische Mathematik.

    • Related Report
      1991 Annual Research Report
  • [Publications] K.Nishioka,I.Shiwkawa and J.Tamura.: "Auihmetical pwperties of certoin power series." J.Number Theory.

    • Related Report
      1991 Annual Research Report
  • [Publications] N.Kikuchi: "Kneser's property for a parabolic partial differential equation" J.of Nonlinear Analysis:Theory,Methods,and Applecations.

    • Related Report
      1991 Annual Research Report
  • [Publications] S.Koyama.: "Determinant expression of Selberg zeta functions(I)" Trans.A.M.S.324. 149-168 (1991)

    • Related Report
      1991 Annual Research Report
  • [Publications] S.Koyama: "Determinant expression of Selberg zeta function(II)" TranS.A.M.S.

    • Related Report
      1991 Annual Research Report
  • [Publications] S.Koyama: "Determinant expression of selberg zeta function(III)" Proc.A.M.S.113. 303-312 (1991)

    • Related Report
      1991 Annual Research Report
  • [Publications] S.Koyama: "Zeta Functions of loop groups." Adv.Stud.Pure Math.21. 227-235 (1992)

    • Related Report
      1991 Annual Research Report
  • [Publications] S.Koyama: "Selberg zeta functions and Ruelle operators for function fields" Proc.Japan Acad.67A. 255-259 (1991)

    • Related Report
      1991 Annual Research Report
  • [Publications] S.Koyama: "Selberg zeta functions for PSL and PGL." プレプリント.

    • Related Report
      1991 Annual Research Report
  • [Publications] Y.Egawa and K.Ota: "Regular factors in K_<1,n>ーfru graphs." J.of greph Minon Theory.15. 337-344 (1991)

    • Related Report
      1991 Annual Research Report
  • [Publications] N.Dean and K.Ota: "2ーfactors,connectivity and graph minors" Proc.of graph conference.

    • Related Report
      1991 Annual Research Report
  • [Publications] R.E.L.Aldred,R.L.Hemminger,and K.Ota: "The 3ーconnected graphs having a longest cycle contarning only three contrbctible edges."

    • Related Report
      1991 Annual Research Report
  • [Publications] W.McCuaig and K.Ota: "Contractible triples in 3ーconnected graphs"

    • Related Report
      1991 Annual Research Report
  • [Publications] K.Nishioka: "PainleveーUmemura extensions." プレプリント.

    • Related Report
      1991 Annual Research Report
  • [Publications] K.Komatsu: "Squareーfree discriminants and affectーfree equations." Tokyo J.Math.14. 57-60 (1991)

    • Related Report
      1991 Annual Research Report
  • [Publications] K.komatsu: "On the Galois group of x^p+ax+a=0." Tokyo.J.Math.14. 227-229 (1991)

    • Related Report
      1991 Annual Research Report
  • [Publications] K.Komatsu: "On the Galvis group of x^n-x^<n-1>-x^<n-2>-…-x-1=0" Keiv Science and Technology Reports. 44. 1-6 (1991)

    • Related Report
      1991 Annual Research Report
  • [Publications] K.Komatsu: "On certain affectーfree equatrons"

    • Related Report
      1991 Annual Research Report
  • [Publications] K.Komatsu: "On the Galois group of x^p+p^t b(x+1)=0."

    • Related Report
      1991 Annual Research Report
  • [Publications] H.Tsubaki: "A test for dose dependency of drug efficacy through dose escalation design." Bull.Biometric Soc.of Japan. 12. 73-84 (1991)

    • Related Report
      1991 Annual Research Report
  • [Publications] S.Shimomura: "On an asymptotic property of a nonlinear ordinary differential equation" Tokyo J.Math.14. 329-340 (1991)

    • Related Report
      1991 Annual Research Report
  • [Publications] M.Shibuya: "A simplified proof of a Bonferroniーtype inequality by Tan and Xu and its extension." Stat.and Prob.Letters. 11. 255-257 (1991)

    • Related Report
      1991 Annual Research Report
  • [Publications] M.Shibuya: "An idevtity for sums of binomial coefficients" SIAM Review 33,116.(Problem 91ー5). 33. (1991)

    • Related Report
      1991 Annual Research Report
  • [Publications] M.Shibuya: "Bonferroniーtype inequalities:Chebyshevーtype inequalities for the probahility distributions on[0,n]" Ann.Inst.Statist.Math.43. 261-285 (1991)

    • Related Report
      1991 Annual Research Report
  • [Publications] M.Shibuya and R.Shibata: "User interface provided by Data and Descieption" Bull.of the international Statistical Institute. (1991)

    • Related Report
      1991 Annual Research Report
  • [Publications] M.Shibuya: "Sharp Bonferroniーtype inequalitios in explicit forms" Probability thevry and Applications,J.Mogyorodi Memorial volume.(1992)

    • Related Report
      1991 Annual Research Report

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Published: 1991-04-01   Modified: 2016-04-21  

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