Qiu, Ruifeng ( 邱瑞锋 )
| Title： | Professor |
|---|---|
| Department： | Pure Mathematics |
| Office： | Room 331, Math Building |
| Telephone： | 54342646-331 |
| Email： | rfqiu@math.ecnu.edu.cn |
| Homepage： | http://math.ecnu.edu.cn/~rfqiu |
Research Interest
Low-Dimensional Manifold
Resume
Resume:
Selected Publications
Papers:
Books:
Books:
Recent Publications(From MathSciNet)
MR4493682
Reviewed
Qiu, Ruifeng; Zou, Yanqing Some results on Heegaard splitting.
Acta Math. Sci. Ser. B (Engl. Ed.) 42 (2022), no. 6, 2437–2449. (Reviewer: Kun Du) 57M50
Publication Year 2022
Indexed 2022-12-05
Review Published2023-02-07
MR4118630
Reviewed
Zou, Yanqing; Qiu, Ruifeng Finiteness of mapping class groups: locally large strongly irreducible Heegaard splittings.
Groups Geom. Dyn. 14 (2020), no. 2, 591–605. (Reviewer: Ken-ichi Ohshika) 57K20 (20F65)
Publication Year 2020
Indexed 2020-08-03
Review Published2021-06-25
MR4052730
Reviewed
Qiu, Ruifeng; Zou, Yanqing 3-manifolds admitting locally large distance 2 Heegaard splittings.
Comm. Anal. Geom. 27 (2019), no. 6, 1355–1379. (Reviewer: Kun Du) 57K30
Publication Year 2019
Indexed 2020-03-06
Review Published2020-06-23
MR3802762
Reviewed
Ma, Jiming; Qiu, Ruifeng; Zou, Yanqing Non degenerating Dehn fillings on genus two Heegaard splittings of knots' complements.
Sci. China Math. 61 (2018), no. 6, 1099–1108. (Reviewer: Alexander Zupan) 57M25
Publication Year 2018
Indexed 2018-07-16
Review Published2019-05-22
MR3709691
Reviewed
Du, Kun; Qiu, Ruifeng Minimal Heegaard genus of amalgamated 3-manifolds.
J. Knot Theory Ramifications 26 (2017), no. 11, 1750063, 7 pp. (Reviewer: Tetsuya Ito) 57M27 (57M50 57N10)
Publication Year 2017
Indexed 2017-12-07
Review Published2018-03-29
MR3482710
Reviewed
Du, Kun; Qiu, Ruifeng A note on the uniqueness of unstabilized Heegaard splittings of amalgamated 3-manifolds.
Topology Appl. 204 (2016), 135–148. (Reviewer: Feng Chun Lei) 57M27 (57M25)
Publication Year 2016
Indexed 2016-06-28
Review Published2016-09-30
MR3475746
Reviewed
Zhang, Faze; Qiu, Ruifeng; Zou, Yanqing Infinitely many hyperbolic 3-manifolds admitting distance-$d$ and genus-$g$ Heegaard splittings.
Geom. Dedicata 181 (2016), 213–222. (Reviewer: Kun Du) 57M27
Publication Year 2016
Indexed 2016-06-10
Review Published2017-04-11
MR3449258
Reviewed
Li, Tao; Qiu, Ruifeng On the degeneration of tunnel numbers under a connected sum.
Trans. Amer. Math. Soc. 368 (2016), no. 4, 2793–2807. (Reviewer: Sangbum Cho) 57M25 (57N10)
Publication Year 2016
Indexed 2016-04-14
Review Published2016-12-19
MR3385097
Reviewed
Zhang, Faze; Qiu, Ruifeng; Zou, Yanqing The subset of $R^3$ realizing metrics on the curve complex.
Topology Appl. 193 (2015), 259–269. (Reviewer: William W. Menasco) 57M50
Publication Year 2015
Indexed 2015-10-21
Review Published2016-01-20
MR3336935
Reviewed
Qiu, Ruifeng; Zou, Yanqing; Guo, Qilong The Heegaard distances cover all nonnegative integers.
Pacific J. Math. 275 (2015), no. 1, 231–255. (Reviewer: Feng Chun Lei) 57M27 (57M50)
Publication Year 2015
Indexed 2015-06-11
Review Published2015-09-30
MR3285680
Reviewed
Guo, Qilong; Qiu, Ruifeng; Zou, Yanqing A note on Heegaard genus of self-amalgamated 3-manifold.
Chinese Ann. Math. Ser. B 36 (2015), no. 1, 51–56. (Reviewer: Yuya Koda) 57M27
Publication Year 2015
Indexed 2015-02-13
Review Published2015-08-05
MR3227744
Reviewed
Zou, Yanqing; Guo, Qilong; Qiu, Ruifeng The $\partial$-stabilization of a Heegaard splitting with distance at least 6 is unstabilized.
Chinese Ann. Math. Ser. B 35 (2014), no. 4, 557–562. (Reviewer: Philipp Korablev) 57M27
Publication Year 2014
Indexed 2014-08-25
Review Published2014-12-12
MR3135187
Reviewed
Guo, Qi-long; Qiu, Rui-feng; Zou, Yan-qing; Zhang, Fa-ze Annulus and disk complex is contractible and quasi-convex.
Commun. Math. Res. 29 (2013), no. 4, 377–382. (Reviewer: Ali Aalam) 57M99
Publication Year 2013
Indexed 2014-03-17
Review Published2014-09-05
MR3003339
Reviewed
Zou, Yanqing; Du, Kun; Guo, Qilong; Qiu, Ruifeng Unstabilized self-amalgamation of a Heegaard splitting.
Topology Appl. 160 (2013), no. 2, 406–411. (Reviewer: Wolfgang H. Heil) 57M50 (57M27 57N10)
Publication Year 2013
Indexed 2013-04-16
Review Published2013-09-21
MR2868894
Indexed
Gao, Xutao; Guo, Qilong; Qiu, Ruifeng Erratum to "A note on tunnel number of composite knots'' [Topology Appl. 158 (16) (2011) 2240–2243] [MR2831913].
Topology Appl. 159 (2012), no. 3, 934. 57M25
Publication Year 2012
Indexed 2012-05-09
MR2883102
Reviewed
Wang, Shu Xin; Qiu, Rui Feng Essential closed surfaces in a class of surface sum of $I$-bundle of closed surfaces.
J. Math. Res. Exposition 31 (2011), no. 5, 814–818. (Reviewer: Martin Scharlemann) 57N10 (57M50)
Publication Year 2011
Indexed 2012-03-22
Review Published2012-08-09
MR2831913
Reviewed
Gao, Xutao; Guo, Qilong; Qiu, Ruifeng A note on tunnel number of composite knots.
Topology Appl. 158 (2011), no. 16, 2240–2243. (Reviewer: Maggy T. Tomova) 57M25
Publication Year 2011
Indexed 2012-01-19
Review Published2012-04-25
MR2796226
Reviewed
Du, Kun; Ma, Jiming; Qiu, Ruifeng; Zhang, Mingxing Heegaard genera of annular 3-manifolds.
J. Knot Theory Ramifications 20 (2011), no. 4, 547–566. (Reviewer: Maggy T. Tomova) 57N10 (57M27)
Publication Year 2011
Indexed 2011-09-20
Review Published2012-04-27
MR2660570
Reviewed
Li, Tao; Qiu, Ruifeng; Wang, Shicheng A quadratic bound on the number of boundary slopes of essential surfaces with bounded genus.
Geom. Dedicata 147 (2010), 131–138. (Reviewer: Richard Weidmann) 57M50 (57N10)
Publication Year 2010
Indexed 2010-11-11
Review Published2011-04-05
MR2639826
Reviewed
Qiu, Ruifeng; Wang, Shicheng; Zhang, Mingxing The Heegaard genera of surface sums.
Topology Appl. 157 (2010), no. 9, 1593–1601. 57M25 (57N10)
Publication Year 2010
Indexed 2010-08-03
Review Published2011-06-16
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