序号 |
论文名称 |
作 者 |
期刊名称 |
年-卷-期 |
1 |
Classification of tile digit sets as product-forms. |
Lai, Chun-Kit; Lau, Ka-Sing; 饶辉 |
Transactions of the American Mathematical Society |
2017-369-1 |
2 |
Differentiability of L^q-spectrum and multifractal decomposition by using infinite graph-directed IFSs |
邓国泰, Ngai szeman* |
Advances in Mathematics |
2017-311 |
3 |
Stability of Rarefaction waves for 1-D compressible viscous micropolar fluid model. |
Jing Jin, 段然* |
Journal of Mathematical Analysis and Applications |
2017-450-2 |
4 |
Global strong solution to compress120ible Navier-Stokes equations with density dependent viscosity and temperature dependent heat conductivity. |
段然, Ai.Guo*, 朱长江 |
Journal of Differential Equations |
2017-262-8 |
5 |
Minimality of p-adic rational maps with good reduction |
凡石磊*、廖灵敏、王跃飞 |
Discrete and Continuous Dynamical Systems |
2017-37-6 |
6 |
Almost everywhere convergence of ergodic series |
|
Ergodic Theory Dynamic Systems |
2017-37-2 |
7 |
On the Fourier orthonormal bases of Cantor-Moran measures. |
何柳,何兴纲* |
Journal of Functional Analysis |
2017-272- 5 |
8 |
On hyperbolic graphs induced by iterated function systems. |
刘家成,王向阳* |
Advances in Mathematics |
2017-313 |
9 |
Multiple and exact soliton solutions of the perturbed Korteweg–de Vries equation of long surface |
Ehab S. Selima*, 尧小华,Abdul-Majid Wazwaz |
Physical review E |
2017-95:062211 |
10 |
Neighbor sum distinguishing index of 2-degenerate graphs |
胡小兰,陈耀俊,罗荣*,苗正科 |
Journalof Combinatorial Optimization |
2017-34 |
11 |
Upper bounds on adjacent vertex distinguishing total chromatic number of graphs |
胡小兰*,张运清,苗正科 |
Discrete Applied Mathematics |
2017-233 |
12 |
Abelian integrals in unfoldings of codimension 3 singularities with nilpotent linear parts |
黄继才, 刘长剑, 王继华* |
Journal of Mathematical Analysis and Applications |
2017-449-01 |
13 |
Inverse source problem for the hyperbolic equation with a time-dependent principal part |
蒋代军,刘逸侃*,Masahiro Yamamoto |
Journal of Differential Equations |
2017-262 |
14 |
Weak Unique Continuation Property and a Related Inverse Source Problem for Time-Fractional Diffusion-Advection Equations |
蒋代军,刘逸侃*,李志远,Masahiro Yamamoto |
Inverse Problems |
2017-33 |
15 |
Simultaneous identification of Robin coefficient and heat flux in an elliptic system |
蒋代军*,T.A. Talaat |
International Journal of Computer Mathematics |
2017-94-1 |
16 |
Proofs of three conjectures on the quotients of the (revised) Szeged index and the Wiener index and beyond |
李书超,张慧慧* |
Discrete Mathematics |
2017-340-3 |
17 |
On the quotients between the (revised)Szeged index and Wiener index of graphs |
张慧慧,陈静,李书超* |
Discrete Mathematics and Theoretical Computer Science |
2017-19-1 |
18 |
On the maximal connective eccentricity index of bipartite graphs with some given parameters |
李洪帅,李书超*,张慧慧 |
Journal of Mathematical Analysis and Applications |
2017-454-2 |
19 |
On the extremal graphs of diameter 2 with respect to the eccentric resistance-distance sum |
何春玲,李书超,王梦甜* |
Discrete Applied Mathematics |
2017-221-4 |
20 |
On the coefficients of the independence polynomial of graphs |
李书超,刘琳,吴跃禹* |
Journal of Combinatorial Optimization |
2017-33-4 |
21 |
On the Laplacian spectral radius of bipartite graphs with fixed order and size |
张慧慧,李书超* |
Discrete Applied Mathematics |
2017-229- |
22 |
On the Spectral characterizations of graphs |
黄晶,李书超 |
Discussiones Mathematicae Graph Theory |
2017-37-3 |
23 |
On the Kirchhoff Index and the Number of Spanning Trees of Linear Phenylenes |
彭颖君,李书超 |
Match Communications in Mathmatical and in computer Chemistry |
2017-77-3 |
24 |
On a conjecture for the signless Laplacian spectral radius of cacti with given matching number |
沈云,尤利华*,张敏捷,李书超 |
Linear and Multilinear Algebra |
2017-65-3 |
25 |
Connectivity, diameter, independence number and the distance spectral radius of graphs |
张敏捷,李书超*,I.Gutman |
Linear Algebra and its Applications |
2017-529- |
26 |
Cacti with n-vertices and t cycles having extremal Wiener index |
I. Gutman, 李书超,魏薇* |
Discrete Applied Mathematics |
2017-232- |
27 |
Maximin efficiency robust test for multiple nuisance parameters and its statistical properties |
杨青、朱家砚、李正帮* |
Acta Mathematica Scientia |
2017-37B-1 |
28 |
a complete classification of ground-states for a coupled nonlinear schrodinger system |
刘创业*, Zhi-Qiang Wang |
Communications on Pure and Applied Analysis |
2017-16-1 |
29 |
Orbital stability of spacially synchronized solitary waves of Schrodinger system with power-type nonlinears |
刘创业*, Nghiem V.Nguyen, Zhi-Qiang Wang* |
Journal of Nonlinear and Convex Analysis |
2017-18-8 |
30 |
Three new classes of optimal frequency-hopping sequence sets |
陈博聪,林丽仁,San Ling, 刘宏伟* |
Designs, Codes and Cryptography |
2017-83 |
31 |
Some repetaed-root of constacyclic codes over Galois rings |
刘宏伟, Youcef Maouche |
IEEE Transactions on Information Theory |
2017-63-10 |
32 |
On structure and distances of some classes of repeated-root constacyclic codes over Galois rings |
Hai. Dinh, 刘宏伟*,刘修生,Songsak Sriboonchitta |
Finite Fields and Their Applications |
2017-43-02 |
33 |
Constacyclic symbol-pair codes: lower bounds and optimal constructions |
陈博聪,林丽仁,刘宏伟 |
IEEE Transactions on Information Theory |
2017-63-12 |
34 |
On the positive vector solutions for nonlinear fractional Laplacian systems with linear coupling |
吕登峰、彭双阶 |
Discrete and Continuous Dynamical Systems |
2017-37-6 |
35 |
Multiple positive solutions for linearly coupled nonlinear elliptic systems with critical exponent. |
彭双阶、帅伟*、王庆芳 |
Journal of Differential Equations |
2017-263-1 |
36 |
Local uniqueness and periodicity induced by concentration |
郭玉霞、彭双阶、严树森 |
Proceedings of the London Mathematical Society |
2017-114-6 |
37 |
Existence, non-degeneracy of proportional positive solutions and least energy solutions for a fractional elliptic system |
何其涵、彭双阶、彭艳芳 |
Advances in Differential Equations |
2017-22-11 |
38 |
Existence and asymptotic behavior of vector solutions for coupled non-linear Kirchhoff-type systems |
吕登峰、彭双阶* |
Journal of Differential Equations |
2017-263 |
39 |
On extremal cacti with respect to the revised Szeged index |
王书晶 |
Discrete Applied Mathematics |
2017-233 |
40 |
On extremal cacti with respect to the Szeged index |
王书晶 |
Applied Mathematics and Computation |
2017-309 |
41 |
Nonlinear dynamics of avian influenza epidemic models |
刘三红,张兴安 |
Mathematical Biosciences |
2017-283 |
42 |
The impact of radiation on the development of lung cancer |
李玲玲,田天海,张兴安* |
Journal of Theoretical Biology |
2017-428 |
43 |
An SEIR Epidemic Model with Relapse and General Nonlinear Incidence Rate with Application to Media Impact |
王连文*,张兴安,刘志军 |
Qualitative Theory of Dynamical Systems |
(2017)ttps://doi.org/10.1007/s12346-017-0231-6 |
44 |
Convergence of Numerov’s method for inverse Sturm–Liouville problems |
Qin Gao; 赵全庭*; Xuan Zheng; Yonghui Ling |
Applied Mathematics and Computation |
2017-293-1 |
45 |
Global solution in critical spaces to the compressible Oldyoyd-B model with non-small coupling parameter |
訾瑞昭 |
Discrete and Continuous Dynamical Systems |
2017-37-12 |
46 |
Blow-up criterion for the incompressible viscoelastic flows |
冯泽夫,朱长江,訾瑞昭* |
Journal of Functional Analysis |
2017-272-9 |
47 |
A conjecture on the hyperfocal sub-algebras andnormal hyperfocal sub-groups |
胡学琴*,Atumi Watanabe |
Journal of Algebra |
2017-477 |
48 |
On the complete faithfulness of the p-free quotient modules of dual Selmer groups |
Meng Fai Lim |
Journal of the Ramanujan Mathmatical Society |
2017-32-3 |
49 |
Notes on the fine Selmer groups |
Meng Fai Lim |
Asian Journal of Mathematics |
2017-21-2 |
50 |
Stability of the superposition of rarefaction wave and contact dis-continuity for the non-isentropic Navier-Stokes-Poisson system |
阮立志、尹海燕、朱长江* |
Mathematical Methods in the Applied Sciences |
2017-40-7 |
51 |
Sharp upper bounds for multiplicative Zagreb indices of bipartite graphs with given diameter |
王春香, 刘家保 , 王绍辉* |
Discrete Applied Mathematics |
2017-227-1 |
52 |
On extremal multiplicative Zagreb indices of trees with given number of vertices of maximum degree |
王绍辉, 王春香*,陈林, 刘家保 |
Discrete Applied Mathematics |
2017-227-1 |
53 |
Further results on computation of topological indices of certain networks |
刘家保, 王绍辉*, 王春香, Sakander Hayat |
IET Control Theory and Applications |
2017-11-13 |
54 |
Node-based Learning of Differential Networks from Multi-platform Gene Expression Data |
欧阳乐,张晓飞*,吴敏,李晓黎 |
Methods |
2017-129-10 |
55 |
Node-based differential network analysis in genomics |
张晓飞,欧阳乐*,严洪 |
Computational Biology and Chemistry |
2017-69-08 |
56 |
Identifying differential networks based on multi-platform gene expression data |
欧阳乐,严洪,张晓飞* |
Molecular BioSystems |
2017-13-01 |
57 |
Incorporating prior information into differential network analysis using non-paranormal graphical models |
张晓飞,欧阳乐*,严洪 |
Bioinformatics |
2017-33-16 |
58 |
Closed Willmore minimal hyper-surfaces with constant scalar curvature in S^5(1) are isoparametric |
邓勤涛*,顾会玲, 韦巧瑜 |
Advances in Mathematics |
2017-314 |
59 |
Degree-Based Moment Estimation for Ordered Networks |
李文龙,晏挺*, Abd Elgawad M.,覃红 |
Journal of Systems Science and Complexity. |
2017-30 |
60 |
Limit theory of bivariate dual generalized order statistics with random index |
M. A.Abd Elgawad*, Barakat, H.M., 覃红,晏挺 |
Statistics |
2017-51-3 |
61 |
Affiliation networks with an increasing degree sequence. |
张勇*,钱晓迪,覃红,晏挺 |
Communication in Statistics-Theory and Method |
2017,46(22), 11163-11180 |
62 |
Coherent configurations associated with TI-subgroups |
陈刚, Ilia Ponomarenko* |
Journal of Algebra |
2017-488-08 |
63 |
The Dirac operator on manifold admitting parallel one-form |
陈永发 |
Journal of Geometry and Physics |
2017-117 |
64 |
Positive ground state solutions for a quasilinear elliptic equation with critical exponent |
邓引斌*, Wentao Huang |
Discrete and Continuous Dynamical Systems. Series A |
2017-37-8 |
65 |
Nodal solutions for a generalized quasilinear Schrodinger equation with critical exponents |
Kun Cheng ,邓引斌 |
Discrete and Continuous Dynamical Systems. Series A |
2017-37-1 |
66 |
Ground state solutions for general-ized quasilinear Schrodinger equations without (AR) condition |
邓引斌, Wentao Huang |
Journal of Mathematical Analysis and Applications |
2017-456 |
67 |
Normalized solutions for the Chern -Simons-Schrodinger equation in R^2 |
李工宝,罗肖 |
Anneales Academiae, Scinentiarum Fennicae Mathematica |
2017-42(405-428) |
68 |
sign-changing solutions for a gauged nonlinear Schr\"{o}dinger equation |
李工宝*,罗肖,帅伟 |
Journal of Mathematical Analysis and Applications |
2017-455(1559-1578 |
69 |
Maxwell’s Equations in an Un-bounded Structure |
Peijun Li*, 郑高峰 ,Weiying Zheng |
Mathematical Methods in the Applied Sciences |
2017-40 |
70 |
Optimal Spectral Schemes Based on Generalized Prolate Spheroidal Wave Functions of Order −1 |
张晶,李会元,王立联*,张智民 |
Journal of Scientific Computing |
2017-70 |
71 |
Computable Error Estimates for Nonsymmetric Eigenvalue Problems |
谢和虎,谢满庭,阴小波,岳美玲* |
East Asian Journal on Applied Mathematics |
2017-7-3 |
72 |
SIR model of spread of Zika virus infections: ZIKV linked to microcephaly simulations |
Isack E. Kibona*,杨翠红 |
Health |
2017-9 |
73 |
Fourier transforms and bent functions on faithful actions of finite abelian groups |
樊恽,Bangteng Xu* |
Designs, Codes and Cryptography |
2017-82 |
74 |
Galois self-dual constacyclic codes |
樊恽*,张良 |
Designs, Codes and Cryptography |
2017-84 |
75 |
Nonlinear functions and difference sets on group actions |
樊恽,Bangteng Xu* |
Designs, Codes and Cryptography |
2017-85 |
76 |
Every planar graph without 3-cycles adjacent to 4-cycle and without 6-cycle is (1, 1, 0)-colorable |
Ying Bai, 李相文*, Gexin Yu |
Journal of Combinatorial Optimization |
2017-33-4 |
77 |
$Z_3$-connectivity of claw-free graphs |
Ziwen Huang,李相文*,Jianqing Ma |
Graphs and Combinatorics |
2017-33-1 |
78 |
Blocks with Frobenius inertial quotients |
胡雪琴, KunZhang*,周远扬* |
Journal of Algebra |
2017-489 |
79 |
The factorization method for the inverse scattering problem from thin dielectric objects |
吴庆华*,严国政 |
Computation Applied Mathematics |
2017-36 |
80 |
New differentially 4-uniform permutations by modifying the inverse function on subfields |
彭杰*,Chik How Tan |
Cryptography and Communications |
2017-9-3 |
81 |
New secondary constructions of differentially 4-uniform permutations over F22k |
彭杰*,Chik How Tan,王启春 |
International Journal of Computer Mathematics |
2017-94-8 |
82 |
Uniform Four-Level Designs From Two-level Designs: A New Look |
Chatterjee, K., 欧祖军, Frederick K. H. Phoa, 覃红 |
Statistica Sinica |
2017-27- |
83 |
Construction on two-level factorials with flexible partially replicated runs via quarter foldover |
李洪毅,覃红 |
Journal of Statistical Planning and Inference |
2017-188- |
84 |
Optimum mechanism for breaking the confounding effects of mixed-level designs |
Elsawah, A. M., 覃红 |
Compututer Statistics |
2017-32-2 |
85 |
A new look on optimal foldover plans in terms of uniformity criteria |
Elsawah, A. M., 覃红 |
Commuications in Statistics Theory and methods |
2017-46-4 |
86 |
Asymptotic random extremal ratio and product based on generalized order statistics and its dual |
Alawady,M. A. ,Elsawah, A. M. ,胡建伟,覃红 |
Commuications in Statistics Theory and methods |
2017-46-18 |
87 |
A new extension strategy on three-level factorials under wrap-around $L_2$-discrepancy |
勾廷勋,覃红, Chatterjee, K. |
Commuications in Statistics Theory and methods |
2017-46-18 |
88 |
A note on asymptotic distributions in directed exponential random graph models with bi-degree sequences |
罗敬,覃红,晏挺,Lala Zeyneb |
Commuications in Statistics Theory and methods |
2017-46-18 |
89 |
Analytic connections between a double design and its original design in terms of different optimality criteria |
欧祖军,覃红 |
Commuications in Statistics Theory and methods |
2017-46-15 |
90 |
Some new lower bounds to various discrepancies on combined designs |
欧祖军,覃红, Chatterjee, K. |
Commuications in Statistics Theory and methods |
2017-46-7 |
91 |
Stress-strength Models with More than Two States under Exponential Distribution |
覃红,Jana, N., Kumar, S., Chatterjee, K. |
Commuications in Statistics Theory and methods |
2017-46-1 |
92 |
Multivariate Bayesian U-type asymmetric Designs for Nonpara-metic Response Surface Prediction under Correlated Errors |
Balakrishnan, N., 覃红, Chatterjee, K. |
Commuications in Statistics Theory and methods |
2017-46-9 |
93 |
Some properties of double designs in terms of Lee discrepancy |
邹娜,覃红 |
Acta Matematica Scientia |
2017-37-1 |
94 |
Admissibility of linear estimators with respect to inequality constraints under some loss functions |
张尚立,覃红,伍长春 |
Acta Mathematicae Applicatae Sinica |
2017-33-4 |
95 |
Sensor scheduling for target coverage in directional sensor networks |
Jia, Jinglan; 董才林; 何兴纲; Li, Deying;Yu, Ying |
International Journal of Distributed sensor Networks |
2017-13-6 |
96 |
Avian influenza a A7N9 virus has been established in China |
张兴安; Zou, Lan;Chen, Jing; Fang, Yile; 黄继才; Zhang, Jinhui; Liu, Sanhong; Feng, Guangting;杨翠红; |
Journal of Biological Systems |
2017-25-4 |
97 |
A multi-network clustering method for detecting protein complexes from multiple heterogeneous networks |
Le Ou-Yang; Yan, Hong; 张晓飞 |
BMC Bioinformatics |
2017-18 |
98 |
A new nonbinary sequence family with low correlation and large size |
Liang, Hua; Chen, Wenbing; 罗金权; Tang, Yuansheng |
Advances in Mathematics of Communications |
2017-11-4 |
99 |
On cross-correlation of a binary m-sequence of period 2(2k)-1 and its decimated sequences by (2(lk)+1)/(2(l)+1) |
Liang, Hua; 罗金权; Tang, Yuansheng |
Advances in Mathematics of Communications |
2017-11-4 |
100 |
A positive solution of a nonlinear Schrodinger system with nonconstant potentials |
He, QiHan; Luo, Xiao |
Science China-Mathematics |
2017-60-12 |
101 |
A new method for simultaneously reconstructing the space-time dependent robin coefficient and heat flux in a parabolic system |
Abdelhamid, Talaat; Deng, Xiaomao; Chen, Rongliang |
International Journal of Numerical Analysis and Modeling |
2017-14-6 |
102 |
Hamiltonicity of edge chromatic critical graphs |
Chen, Xiaodong; Zhao, Yue |
Discrete Mathematics |
2017-340-12 |
103 |
Vizing's 2-factor conjecture involving large maximum degree |
Shan, Songling |
Journal of Graph Theory |
2017-86-4 |
104 |
The factorization method for cracks in inhomogeneous media |
Guo, Jun; 严国政;Jin, Jing; Hu, Junhao |
Applications of Mathematics |
2017-62-5 |
105 |
Forbidden Pairs and the Existence of a Spanning Halin Subgraph |
Han, Jie; Suil, O.; Shan, Songling; Tsuchiya, Shoichi |
Graphs and Combinatorics |
2017-33-5 |
106 |
Fully oscillating sequences and weighted multiple ergodic limit |
|
Comptes Rendus Mathematique |
2017-355-8 |
107 |
Scaling of spectra of a class of random convolution on R |
Fu, Yan-Song; He, Liu |
Journal of Functional Analysis |
2017-273-9 |
108 |
Saturation Numbers for Linear Forests P-4 boolean OR P-3 boolean OR tP(2) |
Song, Feifei |
Utilitas Mathematica |
2017-104 |
109 |
Testing Association between Mixed Type Outcomes and Covariates Jointly by the Use of a Latent Variable |
Zhu, Jiayan; Zhang, Wei; Li, Qizhai; 李正帮 |
Scientific Reports |
2017-7 |
110 |
Global stability in a tuberculosis model of imperfect treatment with age-dependent latency |
Ren, Shanjing |
Mathematical Biosciences and Engineering |
2017-14-5-6 |
111 |
The existence and concentration of ground-state solutions for a class of Kirchhoff type problems in R-3 involving critical Sobolev exponents |
彭超权 |
Boundary Value Problems |
2017 |
112 |
Domain control of nonlinear networked systems and applications to complex disease networks |
金锁钦; Wu, Fang-Xiang;Zou, Xiufen |
Discrete and Continuous Dynamical Systems-Series B |
2017-22-6 |
113 |
Global dynamics and optimal control of an influenza model with vaccination, media coverage and treatment |
Wang,Lianwen;Liu, Zhijun;Xu,Dashun;张兴安 |
International Journal of Biomathematics |
2017-10-5 |
114 |
Incorporating prey refuge into a predator-prey system with imprecise parameter estimates |
Wang, Qinglong; Liu, Zhijun;张兴安; Cheke, Robert A. |
Computational & Applied Mathematics |
2017-36-2 |
115 |
A closer look at de-aliasing effects using an efficient foldover technique |
Elsawah, A. M. |
Statistics |
2017-51-3 |
116 |
Bound states of schrodinger equations with electromagnetic fields and vanishing potentials |
Ba, Na; 代晋军 |
Acta Mathematica Scientia |
2017-37-2 |
117 |
A powerful and efficient algorithm for breaking the links between aliased effects in asymmetric designs |
Elsawah, A. M. |
Australian & New Zealand Journal of Statistics |
2017-59-1 |
118 |
Media alert in an SIS epidemic model with logistic growth |
Wang, Lianwen; Zhou, Da;Liu, Zhijun; Xu, Dashun; 张兴安 |
Journal of Biological Dynamics |
2017-11-1 |
119 |
Dynamic analysis of an antitumor model and investigation of the therapeutic effects for different treatment regimens |
Pang, Liuyong; Zhao, Zhong; Liu, Sanhong; 张兴安 |
Computational & Applied Mathematics |
2017-36-1 |
120 |
Large time behavior for the non-isentropic Navier-Stokes-Maxwell system |
Liu,Qingqing;Su,Yifan |
Mathematical Methods in the Applied Sciences |
2017-40-3 |
121 |
The direct and inverse problem for an inclusion within a heat-conducting layered medium |
Guo,J.,严国政,Zhou, J. |
Applicable Analysis |
2017-96-2 |
122 |
Existence and asymptotic behavior of high energy normalized solutions for the Kirchhoff type equations in R-3 |
Luo,Xiao;Wang,Qingfang |
Nonlinear Analysis-Real World Applications |
2017-33 |
123 |
Estimation of 1-dimensional nonlinear stochastic differential equations based on higher-order partial differential equation numerical scheme and its application |
李佩彦;Gu, Wei |
Frontiers of Mathematics in China |
2017-12-6 |
124 |
Asymptotic behavior of the joint record values, with applications |
Barakat, H. M.; Abd Elgawad, M. A. |
Statistics & Probability Letters |
2017-124 |
125 |
Existence and concentration of ground state solutions for singularly perturbed nonlocal elliptic problems |
Lu, Dengfeng |
Monatshefte fur Mathematik |
2017-182-2 |
126 |
Multiplicity of positive solutions for kirchhoff type problems in R-3 |
Hu, Tingxi; Lu, Lu |
Topological Methods in Nonlinear Analysis |
2017-50-1 |
127 |
Plane triangulations without a spanning halin subgraph II |
Enomoto, Hikoe;Ozeki,Kenta;Tsuchiya, Shoichi |
Siam Journal on Discrete Mathematics |
2017-31-4 |
128 |
Mutation Mechanisms of Human Breast Cancer |
Li, Lingling;田天海; 张兴安 |
Journal of Computational Biology |
|
129 |
A characterization of signed discrete infinitely divisible distributions |
Zhang, Huiming; 李波; Kerns, G. Jay |
Studia Scientiarum Mathematicarum Hungarica |
2017-54-4 |
130 |
Maximum likelihood estimator of the parameter for a continuous one-parameter exponential family under the optimal ranked set sampling |
Chen,Wangxue;Tian,Yi; 谢民育 |
Journal of Systems Science & Complexity |
2017-30-6 |
131 |
Effective lower bounds of wrap-around L (2)-discrepancy on three-level combined designs |
Elsawah,A.M;胡建伟; 覃红 |
Journal of Systems Science & Complexity |
2017-30-6 |