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Tamaru's PUBLICATION
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Last modified on 29 September 2017.
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We modified a format for the convenience of the JSPS applications and reports.
Preprints
Accepted Papers
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Jong Taek Cho, Takahiro Hashinaga, Akira Kubo, Yuichiro Taketomi, Hiroshi Tamaru,
Realizations of some contact metric manifolds as Ricci soliton real hypersurfaces.
J. Geom. Phys., to appear.
DOI:
10.1016/j.geomphys.2017.08.013
(refereed, 2017/08/31 accepted).
[
arXiv:1702.07256
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Google scholar
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Sadahiro Maeda, Hiroshi Tamaru, Hiromasa Tanabe,
Curvature properties of homogeneous real hypersurfaces in nonflat complex space forms.
Kodai Math. J., to appear.
DOI: TBA
(refereed, 2017/06/14 accepted).
[
Google scholar
]
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Yuichiro Taketomi, Hiroshi Tamaru,
On the nonexistence of left-invariant Ricci solitons --- a conjecture and examples.
Transf. Groups, to appear.
DOI:
10.1007/s00031-017-9439-4
(refereed, 2016/10/29 accepted).
[
Google scholar
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Published Papers
2017
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Jong Taek Cho, Takahiro Hashinaga, Akira Kubo, Yuichiro Taketomi, Hiroshi Tamaru,
The solvable models of noncompact real two-plane Grassmannians and some applications.
In:
Hermitian-Grassmannian Submanifolds,
Springer Proc. Math. Stat.
203 (2017), 311--321.
DOI:
10.1007/978-981-10-5556-0_26
(refereed, 2016/10/04 accepted).
[
Google scholar
]
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Takahiro Hashinaga, Hiroshi Tamaru,
Three-dimensional solvsolitons and the minimality of the corresponding submanifolds.
Internat. J. Math.
28 (2017), 1750048 [31 pages].
DOI:
10.1142/S0129167X17500483
(refereed, 2017/04/07 accepted).
[
Google scholar
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2016
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Akira Kubo, Kensuke Onda, Yuichiro Taketomi, Hiroshi Tamaru,
On the moduli spaces of left-invariant pseudo-Riemannian metrics on Lie groups.
Hiroshima Math. J.
46 (2016), 357--374.
DOI:
TBA
(refereed, 2016/08/02 accepted)
[
Google scholar
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Takahiro Hashinaga, Akira Kubo, Hiroshi Tamaru,
Homogeneous Ricci soliton hypersurfaces in the complex hyperbolic spaces.
Tohoku Math. J. (2)
68 (2016), 559--568.
DOI: 10.2748/tmj/1486177215
(refereed, 2015/02/17 accepted)
[
Google scholar
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MR3605447
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Yoshitaka Ishihara, Hiroshi Tamaru,
Flat connected finite quandles.
Proc. Amer. Math. Soc.
144 (2016), 4959--4971.
DOI: 10.1090/proc/13095
(refereed, 2016/01/13 accepted)
[
Google scholar
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MR3544543
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Hiroshi Tamaru,
The space of left-invariant Riemannian metrics.
In:
Geometry and Topology of Manifolds,
Springer Proc. Math. Stat.
154 (2016), 315--326.
DOI: 10.1007/978-4-431-56021-0_17
(refereed, 2015/04/01 accepted)
[
Google scholar
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MR3555990
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Seiichi Kamada, Hiroshi Tamaru, Koshiro Wada,
On classification of quandles of cyclic type.
Tokyo J. Math.
39 (2016), 157--171.
DOI: 10.3836/tjm/1459367262
(refereed, 2015/06/16 accepted)
[
Google scholar
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MR3543136
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Takahiro Hashinaga, Hiroshi Tamaru, Kazuhiro Terada,
Milnor-type theorems for left-invariant Riemannian metrics on Lie groups.
J. Math. Soc. Japan
68 (2016), 669--684.
DOI: 10.2969/jmsj/06820669
(refereed, 2014/12/15 accepted)
[
Google scholar
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MR3488140
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2015
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Sadahiro Maeda, Hiroshi Tamaru,
Naturally reductive homogeneous real hypersurfaces in a nonflat complex space form.
In: Topology Appl.
196, Part B (2015), 675--683.
DOI:
10.1016/j.topol.2014.01.020
(refereed, 2014/01/14 accepted)
[
Google scholar
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Zbl 1329.53075
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MR3431006
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Hiroshi Tamaru,
対称空間論の離散化とカンドル代数, Part II.
In: 研究集会「部分多様体論・湯沢 2014」記録集, 55--60 (2015).
DOI: unkown (not refereed, 2015/02/20 submitted)
[
Link
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Shinobu Fujii, Hiroshi Tamaru,
Moment maps and isoparametric hypersurfaces in spheres --- Hermitian cases.
Transf. Groups
20 (2015), 417--436.
DOI:
10.1007/s00031-015-9305-1
(refereed, 2014/11/14 accepted)
[
Google scholar
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Zbl 1330.53111
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MR3348562
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Hiroshi Tamaru,
対称空間論の離散化とカンドル代数, Part I.
In: Geometry and Analysis (福岡大学微分幾何研究会 2014 記録集), 99--107 (2015).
DOI: unkown (not refereed, 2014/12/15 submitted)
[
pdf (218KB)
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2014
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Hiroshi Tamaru,
Group actions on symmetric spaces related to left-invariant geometric structures.
In:
Development of group actions and submanifold theory,
RIMS Kokyuroku
1929 (2014), 1--12.
DOI: unkown (not refereed, 2014/10/08 submitted)
[
Google scholar
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Takuya Fujimaru, Akira Kubo, Hiroshi Tamaru,
On totally geodesic surfaces in symmetric spaces of type AI.
In:
Real and Complex Submanifolds,
Springer Proc. Math. Stat.
106 (2014), 211--227.
DOI:
10.1007/978-4-431-55215-4_19
(refereed, 2014/06/08 accepted)
[
Google scholar
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Zbl 1321.53060
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MR3333381
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Carlos Olmos, Silvio Reggiani, Hiroshi Tamaru,
The index of symmetry of compact naturally reductive spaces.
Math. Z.
277 (2014), Issue 3--4, 611--628.
DOI:
10.1007/s00209-013-1268-0
(refereed, 2013/10/29 accepted)
[
Google scholar
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Zbl 1302.53056
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MR3229956
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2013
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Akira Kubo, Hiroshi Tamaru,
A sufficient condition for congruency of orbits of Lie groups and some applications.
Geom. Dedicata
167 (2013), no. 1, 233--238.
DOI:
10.1007/s10711-012-9811-4
(refereed, 2012/12/01 accepted)
[
Google scholar
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MR3128778
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Zbl 1284.57031
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Jurgen Berndt, Hiroshi Tamaru,
Cohomogeneity one actions on symmetric spaces of noncompact type.
J. Reine Angew. Math.
683 (2013), 129--159.
DOI:
10.1515/crelle-2012-0002
(refereed, 2012/03/13 accepted)
[
Google scholar
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Zbl 1280.53049
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MR3181551
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Hiroshi Tamaru,
Two-point homogeneous quandles with prime cardinality.
J. Math. Soc. Japan
65 (2013), no. 4, 1117--1134.
DOI:
10.2969/jmsj/06541117
(refereed, 2012/09 accepted)
[
Google scholar
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MR3127819
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Zbl 1295.57011
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Hiroshi Tamaru,
The space of left-invariant metrics --- on a generalization of Milnor frames.
In:
Proceedings of The Seventeenth International Workshop on Diff. Geom.
17 (2013), 55--65.
DOI: none (not refereed, 2013/07 submitted)
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Google scholar
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Zbl 1295.53047
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MR3203382
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Takahiro Hashinaga, Akira Kubo, Hiroshi Tamaru,
Some topics of homogeneous submanifolds in complex hyperbolic spaces.
In:
Differential Geometry of Submanifolds and its Related Topics,
230--244, World Scientific, 2013.
DOI:
10.1142/9789814566285_0020
(refereed, 2013/04/01 accepted)
[
Google scholar
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Zbl 1300.53056
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MR3203486
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2012
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Tatsuyoshi Hamada, Yuji Hoshikawa, Hiroshi Tamaru,
Curvatures properties of Lie hypersurfaces in the complex hyperbolic space.
J. Geom.
103 (2012), no. 2, 247--261.
DOI:
10.1007/s00022-012-0127-1
(refereed, 2012/07/10 accepted)
[
Google scholar
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MR2995128
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Zbl 1266.53057
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Until 2011
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Parabolic subgroups of semisimple Lie groups and Einstein solvmanifolds,
Math. Ann.
351 (2011), no. 1, 51--66.
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DOI
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Google scholar
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MR2824845
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Zbl 1227.53062
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The space of left-invariant metrics on a Lie group up to isometry and scaling
(with Hiroshi Kodama, Atsushi Takahara),
Manuscripta Math.
135 (2011), no. 1--2, 229--243.
[
DOI
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Google scholar
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MR2783396
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Zbl 1230.53048
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Parabolic subgroups and submanifold geometry of noncompact symmetric spaces,
In:
Proceedings of The Fifteenth International Workshop on Diff. Geom.
15 (2011), 29--38.
[
Google scholar
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Zbl 1237.53041
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MR2894276
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Moment maps and isoparametric hypersurfaces in spheres --- an introduction
(with Shinobu Fujii),
In:
Proceedings of The Fifteenth International Workshop on Diff. Geom.
15 (2011), 19--27.
[
Google scholar
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Zbl 1251.53033
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MR2894275
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Hyperpolar homogeneous foliations on symmetric spaces of noncompact type
(with Jurgen Berndt, Jose Carlos Diaz-Ramos),
J. Differential Geom.
86 (2010), no. 2, 191--235.
[
Project Euclid
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Google scholar
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MR2772550
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Zbl 1218.53030
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Homogeneous submanifolds in noncompact symmetric spaces,
In:
Proceedings of The Fourteenth International Workshop on Diff. Geom.
14 (2010), 111--144.
[
Google scholar
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Zbl 1218.53059
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MR2757813
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非コンパクト対称空間への良い作用の構成法,
In:
部分多様体幾何とリー群作用 2010
記録集,
pp39--48 (2010).
[
Google scholar
]
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Lie groups locally isomorphic to generalized Heisenberg groups
(with Hisashi Yoshida),
Proc. Amer. Math. Soc.
136 (2008), no. 9, 3247--3254.
[
DOI
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Google scholar
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MR2407090
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Zbl 1155.53028
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Noncompact homogeneous Einstein manifolds attached to graded Lie algebras,
Math. Z.
259 (2008), no. 1, 171--186.
[
DOI
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Google scholar
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MR2377747
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Zbl 1151.53044
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複素双曲空間内の等質超曲面の分類,
In:
部分多様体論・湯沢2007
報告集,
pp5--15 (2008).
[
Google scholar
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Cohomogeneity one actions on noncompact symmetric spaces of rank one
(with Jurgen Berndt),
Trans. Amer. Math. Soc.
359 (2007), no. 7, 3425--3438.
[
DOI
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Google scholar
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MR2299462
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Zbl 1117.53041
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Parabolic subgroups and Einstein solvmanifolds (in Japanese),
In:
大阪大学微分幾何研究集会 (坂根先生還暦記念),
pp75--85 (2006).
[
pdf (155KB)
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Google scholar
]
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A class of noncompact homogeneous Einstein manifolds (refereed),
In:
Differential Geometry and its Applications,
119--127, Matfyzpress, Prague, 2005.
[
Google scholar
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Zbl 1112.53035
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MR2268926
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Cohomogeneity one actions on noncompact symmetric spaces
with a totally geodesic singular orbit
(with Jurgen Berndt),
Tohoku Math. J.
56 (2004), no. 2, 163--177.
[
DOI
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Google scholar
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Zbl 1066.53097
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MR2053317
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Cohomogeneity one actions on noncompact symmetric spaces of rank one
(in Japanese, with English abstract),
In:
部分多様体論・湯沢2003
報告集,
pp43--48 (2004).
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Cohomogeneity one actions on symmetric spaces (refereed),
In: Theory of Lie groups and manifolds.
Sophia Kokyuroku in Mathematics
45 (2003), 105--120.
[
pdf (205KB)
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Zbl 1038.53052
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Homogeneous codimension one foliations on noncompact symmetric spaces
(with Jurgen Berndt),
J. Differential Geom.
63 (2003), no. 1, 1--40.
[
Project Euclid
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Google scholar
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Zbl 1070.53011
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MR2015258
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Two-step nilpotent Lie groups and homogeneous fiber bundles,
Ann. Global Anal. Geom.
24 (2003), no. 1, 53--66.
[
DOI
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Google scholar
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Zbl 1038.53049
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MR1990085
]
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Cohomogeneity one actions on symmetric spaces
with a totally geodesic singular orbit (in Japanese),
RIMS Kokyuroku
1292 (2002), 106--114.
[
Google scholar
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table of contents
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MR1981790
]
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Two-step nilpotent Lie groups
(in Japanese, with English abstract),
In:
部分多様体論・湯沢1999
報告集, pp3--8 (2000).
[
Google scholar
]
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On certain subalgebras of graded Lie algebras,
Yokohama Math. J.
46 (1999), no. 2, 127--138.
[
YNU-Repository
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Google scholar
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Zbl 1121.17302
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MR1697854
]
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Riemannian g.o. spaces fibered over irreducible symmetric spaces,
Osaka J. Math.
36 (1999), no. 4, 835--851.
[
Project Euclid
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Google scholar
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Zbl 0963.53026
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MR1745654
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The local orbit types of symmetric spaces under the actions of the isotropy subgroups
Differential Geom. Appl.
11 (1999), no. 1, 29--38.
[
DOI
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Google scholar
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Zbl 0941.53035
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MR1702475
]
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Weakly symmetric spaces and Riemannian g.o. spaces (in Japanese),
RIMS Kokyuroku
1069 (1998), 43--52.
[
Google scholar
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table of contents
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Zbl 0952.53026
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MR1701999
]
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Riemannian geodesic orbit metrics on fiber bundles,
Algebras, Groups Geom.
15 (1998), no. 1, 55--67.
[
Google scholar
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Zbl 1055.53503
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MR1674790
]