2017--至今：丝瓜破解版app无限次ios，教授

2015--至今：丝瓜破解版app无限次ios，博士生导师

2015-2016: Texas A & M University (美国), 国家公派访问学者

2011-2017：丝瓜破解版app无限次ios，副教授

2009-2011：清华大学数学系，博士后

3. 第四十六批博士后基金项目，项目名称：空间的粗嵌入与粗几何，2009.8-2011.4

1. 福建省自然科学基金（面上）项目，项目名称：Banach空间的非线性几何与Novikov猜测（2017J0101）, 2017.4-2020.4

5. 教育部新教师基金项目，项目名称：Banach空间的局部嵌入理论及其应用，

2008.1-2011.12

1. 国家自然科学基金（重点）项目，项目名称： Banach空间的非线性几何及其应用,

(11731070), 2018.1-2022.12

[18] Cheng, Lixin; Cheng, Qingjin; Luo, Sijie; Tu, Kun; Zhang, Jichao. On super weak compactness of subsets and equivalences in Banach spaces, Journal of Convex Analysis, 25: 3 (2018).

[17]  Cheng, Lixin; Cheng, Qingjin;Shen, Qinrui; Tu, Kun; Zhang, Wen. A new approach to measure of non-compactness of Banach spaces. Studia Math. 240 (2018), no. 1, 21-45.

[16] Cheng, Qingjin; Wang, Qin. On Banach spaces with Kasparov and Yu's Property (H). J. Math. Anal. Appl. 457 (2018), no. 1, 200–213.

[15] Cheng, Qing Jin ; Dong, Yun Bai. Uniform homeomorphisms of unit spheres and property H of Lebesgue-Bochner function spaces. Acta Math. Sin. (Engl. Ser.) 33 (2017), no. 5, 681–690.

[14] Yang, Zhi Tao; Lu, Yu Feng; Cheng, Qingjin. Super weak compactness and uniform Eberlein compacta. Acta Math. Sin. (Engl. Ser.) 33 (2017), no. 4, 545–553.

[13] Cheng, Qingjin. Sphere equivalence, property H, and Banach expanders. Studia Math. 233 (2016), no. 1, 67–83.

[12] Dong, Yunbai; Cheng, Qingjin. A note on stability of Fischer-Muszély functional equation. Aequationes Math. 89 (2015), no. 3, 605–612.

[11] Cheng, Lixin; Cheng, Qingjin; Tu, Kun; Zhang, Jichao.  A universal theorem for stability of ε -isometries of Banach spaces. J. Funct. Anal. 269 (2015), no. 1, 199–214.

[10] Cheng, Lixin; Cheng, Qingjin; Zhang, Jichao. On super fixed point property and super weak compactness of convex subsets in Banach spaces. J Math. Anal. Appl. 428(2015) no.2, 1209-1224.

[9] Dong, Yunbai; Cheng, Qingjin. Characterization of normed linear spaces with generalized Mazur intersection property, Studia Math. 219 (2013),no.3, 193-200.

[8] Bao, Lingxin; Cheng, Lixin; Dai, Duanxu. On universally left-stability of \varepsilon-isometry, Acta Math. Sin. (Engl.Ser.)29(2013),no.11,2037-2046.

[7] Cheng, Qingjin; Wang, Bo; Wang, Cuiling. On uniform convexity of Banach spaces,Acta Math. Sin(Engl. Ser), 27(2011),no.3, 587–594.

[6] Cheng,Lixin, Cheng, Qingjin, Liu, Zhang, Wen. Every weakly compact set can be uniformly embedded into a reflexive Banach space，Acta Math. Sin(Engl. Ser), 27(2011) ,no.7, 1109-1112

[5] Cheng, Lixin; Cheng, Qingjin; Luo, Zhenghua. On some new characterizations of weakly compact sets in Banach spaces,Studia Math .201(2010) ,no.2, 155–166

[4] Cheng, Lixin; Cheng, Qingjin. More on convexity and smoothness of operators，J Math. Anal. Appl. 371 no.2(2010), 407-413

[3] Cheng, Lixin; Cheng, Qingjin; Wang, Bo; Zhang, Wen. On super-weakly compact sets and uniformly convexifiable sets，Studia Math. 199(2)(2010),145-169

[2] Cheng, Lixin; Cheng, Qingjin; Shi, Huihua. Minimal ball-coverings of Banach spaces and their application，Studia Math.192(2009), 15-27

[1] Cheng,Lixin; Cheng, Qingjin; Liu, Xiaoyan. Ball-covering property is not preserved under linear isomorphisms, Science in China A: Mathematics 51:1(2008),143-147