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孔德荣  

个人主页

所在学系:数学系

职称:研究员

邮箱:derongkong@126.com

电话:

基本信息

孔德荣,博士生导师,重庆大学百人计划研究员。祖籍:江苏-泰兴。

教育背景

2009.09--2012.09  荷兰Delft University of Technology  博士 (导师:F.Michel Dekking教授)

2006.09--2012.09  华东师范大学  硕博连读  (导师:李文侠教授)

2001.09--2005.06  扬州大学  本科

工作经历

2019.04--至今                 重庆大学                                    百人计划研究员

2016.09--2018.09      荷兰Leiden University                博士后(合作导师:Charlene Kalle博士)

2012.12--2016.08            扬州大学                                   讲师



研究方向

分形几何与动力系统   

科研项目

正在主持的科研项目

(1)国家自然科学基金面上项目11971079(2020-2023),主持

已经结题的科研项目

(1)国家自然科学基金青年项目11401516(2015-2017),主持

(2)江苏省自然科学基金青年项目BK20130433(2013-2016),主持

(3)国家自然科学基金天元项目11326207(2014),主持

(4)教育部留学回国人员启动基金(2014),主持

(5)英国伦敦数学会合作基金41706(2018-2019),参与 

(6)重庆市自然科学基金面上项目cstc2019jcyj-msxmX0338(2019-2022),主持

(7)重庆市留创计划cx2019067(2020-2021),主持


专著、译著和教材等


主讲课程

2022春:实变函数(2021数学班)

2022春:分形几何(研究生)

2022春:  初等数论(2018数学班)

2022春:  数论(研究生)

2021春:  数学分析II(2020级强基班)

2020秋:  数学分析I(2020级强基班)


学术与社会兼职

”美国数学评论“评论员;德国zbMath评论员

主要成果

Submitted Papers
  1.  (1) Density spectrum of Cantor measure, (with Pieter Allaart). https://arxiv.org/abs/2008.04474
  2.  (2) On a class of self-similar sets which contain finitely many common points, (with Zhiqiang Wang, Kan Jiang and Wenxia Li). https://arxiv.org/abs/2109.10014
  3.  (3) Intersections of middle-α Cantor sets with a fixed translation, (with Yan Huang). http://arXiv.org/abs/2201.07446
  4.  (4) q-adic expansions of negative powers of p, (with Kan Jiang, Wenxia Li and Zhiqiang Wang). https://arxiv.org/abs/2204.04624
  5.  (5) Univoque bases of real numbers: simply normal bases, irregular bases and multiple rationals, (with Yu Hu and Yan Huang). http://arxiv.org/abs/2207.07263
Published Papers
  1. (1)  Intersections of homogeneous Cantor sets and beta-expansions, (with Wenxia Li and Michel Dekking), Nonlinearity 23 (2010), no. 11, 2815–2834.  https://arxiv.org/abs/1110.3192  
  2. (2)  Multimodality of the Markov binomial distribution, (with Michel Dekking), J. Applied Probability 48 (2011), no. 4, 938–953.  https://arxiv.org/abs/1102.3613  
  3. (3)  Plumes in kinetic transport: How the simple random walk can be too simple, (with Michel Dekking and Annegreet van Opbroek), Stochastic Models 28 (2012), 635-648. https://arxiv.org/abs/1110.3178  
  4. (4)  A simple stochastic kinetic transport model, (with Michel Dekking), Adv. in Applied Probability 44 (2012), 874–885.  https://arxiv.org/abs/1106.2912  
  5. (5)  Hausdorff dimension of unique beta expansions, (with Wenxia Li), Nonlinearity 28 (2015), no. 1, 187–209.  https://arxiv.org/abs/1401.6473  
  6. (6)  On a problem of countable expansions, (with Yuru Zou), J. Number Theory 158(2016), 134–150. https://arxiv.org/abs/1503.07434  
  7. (7)  On small univoque bases of real numbers, Acta Math. Hungar. 150 (2016), 194– 208. https://arxiv.org/abs/1602.06173
  8. (8)  Hausdorff dimension of univoque sets and devil’s staircase, (with Vilmos Komoronik and Wenxia Li), Adv. Math. 305 (2017), 165–196.  https://arxiv.org/abs/1503.00475  
  9. (9)  On small bases which admit points with two expansions, (with Wenxia Li and Yuru Zou), J. Number Theory, 173 (2017), 100–128.  https://arxiv.org/abs/1507.08135  
  10. (10)  Unique expansions and intersections of Cantor sets, (with Simon Baker), Nonlinearity, 30 (2017), 1497–1512.  https://arxiv.org/abs/1604.00858  
  11. (11)  Univoque bases and Hausdorff dimension, (with Wenxia Li, Fan Lv and Martijn de Vries), Monatsh. Math., 184 (2017), 443–458.  https://arxiv.org/abs/1606.03791  
  12. (12)  Algebraic sums and products of univoque bases, (with Karma Dajani, Vilmos Komornik and Wenxia Li), Indag. Math., 29 (2018), 1087–1104.  https://arxiv.org/abs/1710.03291  
  13. (13)  Bases in which some numbers have exactly two expansions, (with Vilmos Komornik), J. Number Theory, 195 (2019), 226–268.  https://arxiv.org/abs/1705.00473  
  14. (14)  Entropy, topological transitivity and dimensional properties of unique q-expansions, (with Rafael Alcaraz Barrera and Simon Baker), Trans. Amer. Math. Soc., 371 (2019), 3209–3258. https://arxiv.org/abs/1609.02122  
  15. (15)  Multiple expansions of real numbers with digits set {0, 1, q}, (with Karma Dajani, Kan Jiang and Wenxia Li), Math. Z., 291 (2019), 1605–1619.  https://arxiv.org/abs/1508.06138  
  16. (16)  On the bifurcation set of unique expansions, (with Charlene Kalle, Wenxia Li and Fan Lv), Acta Arith., 188-4 (2019), 367–399.  https://arxiv.org/abs/1612.07982

  17. (17)  On the structure of λ-Cantor set with overlaps, (with Karma Dajani and Yuanyuan Yao), Adv. Appl. Math., 108 (2019), 97–125.  https://arxiv.org/abs/1810.08324  

  18. (18)  Bifurcation sets arising from non-integer base expansions, (with Pieter Allaart and Simon Baker). J. Fractal Geom., 6-4 (2019), 301--341. https://arxiv.org/abs/1706.05190 

  19. (19)  Numbers with simply normal beta-expansions, (with Simon Baker), Math. Proc. Camb. Phil. Soc. 167 (2019), 171--192. https://arxiv.org/abs/1707.01013

  20. (20)  On the continuity of the Hausdorff dimension of the univoque set, (with Pieter Allaart), Adv. Math., 354 (2019), 106729, 24pp. https://arxiv.org/abs/1804.02879  

  21. (21)  The beta-transformation with a hole at 0, (with Charlene Kalle, Niels Langeveld and Wenxia Li), Ergodic Theory Dynam. Systems. 40 (2020), 2482--2514.  https://arxiv.org/abs/1803.07338  

  22. (22)  On the complexity of the set of codings for self-similar sets and a variation on the construction of Champernowne, (with Simon Baker),  Adv. Math., 360 (2020), 106934, 29pp. https://arxiv.org/abs/1810.07083  

  23. (23)  Two bifurcation sets arising from the beta transformation with a hole at $0$, (with Simon Baker), Indag. Math. 31(2020), 436--449. https://arxiv.org/abs/1904.07007  

  24. (24)  Critical base for the unique codings of fat Sierpinski gasket, (with Wenxia Li), Nonlinearity 33 (2020), 4484--4511. https://arxiv.org/abs/1812.00585

  25. (25)  Univoque bases of real numbers: local dimension, Devil's staircase and isolated points}, (with Wenxia Li, Fan Lv, Zhiqiang Wang and Jiayi Xu). Adv. Appl. Math., 121 (2020), 102103, 31pp.  https://arxiv.org/abs/1911.05910

  26. (26)  Multiple codings for self-similar sets with overlaps, (with Karma Dajani, Kan Jiang, Wenxia Li and Lifeng Xi). Adv. Appl. Math., 124 (2021), 102146, 49pp.  https://arxiv.org/abs/1603.09304  

  27. (27)  On a kind of self-similar sets with complete overlaps, (with Yuanyuan Yao).  Acta Math. Hungar. 163(2) (2021), 601--622. https://arxiv.org/abs/2005.03280   

  28. (28)  Pointwise densities of homogeneous Cantor measure and critical values, (with Wenxia Li and Yuanyuan Yao). Nonlinearity  34 (2021), 2350--2380. https://arxiv.org/abs/2005.03269  

  29. (29)  Relative bifurcation sets and the local dimension of univoque bases, (with Pieter Allaart), Ergodic Theory Dynam. Systems. 41 (2021),  2241--2273. https://arxiv.org/abs/1809.00323 

  30. (30)  On the smallest base in which a number has a unique expansion, (with Pieter Allaart),  Trans. Amer. Math. Soc. 374 (2021), 6201--6249.  https://arxiv.org/abs/2006.07927 

  31. (31)  How likely can a point be in different Cantor sets, (with Kan Jiang and Wenxia Li), Nonlinearity, 35(2022), 1402--1430. https://arxiv.org/abs/2102.13264

  32. (32) Critical values for the β-transformation with a hole at 0, (with Pieter Allaart). To appear in Ergodic Theory Dynam. Systems. https://arxiv.org/abs/2109.10012

研究生培养

2021级博士:黄   燕

2021级硕士:鲍思敏、张会星

2020级硕士:胡    宇、孙贝贝


关于我们

    八十多年来,数学名家何鲁、柯召、胡坤陞、段调元、潘璞、周雪欧等都曾任教于此。经过几代人的不懈努力,学院目前拥有数学一级学科博士点、统计学一级学科博士点、数学博士后流动站、数学重庆市一级重点学科、统计学重庆市一级重点学科、重庆市非线性分析及应用高校重点实验室、重庆市数学实验教学示范中心、重庆市数学科学研究所、重庆大学数学中心、重庆大学数学科学创新实践工作站等学科研究平台。数学学科2016年列入重庆大学 “双一流”建设重点培育学科。

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