Working papers

[1] W. Wang and T. Yu, Square-free discriminants of matrices and the generalized spectral characterization of graphs, preprint.

[2] W. Wang, T. Yu, H. Zhang, On the generation of rational orthogonal matrices with constant row sums, in preparation.

[3] L.H. Mao, F.J. Liu, W. Wang, On the construction of cospectral graphs via regular rational orthogonal matrices of level two, in preparation.

[4] W. Wang, On graphs determined by their polynomial invariants, in preparation.

[5] L.H. Qiu, W. Wang, W. Wang, Oriented graphs determined by their generalized skew spectrum, submitted.

[6] W. Wang, F.J. Liu, W. Wang, Generalized spectral characterizations of almost controllable graphs.

Peer-reviewed Journal papers

[74] Xianling Liu, Zishen Yang, **Wei Wang***, The t-latency bounded strong target set selection problem in some kind of special family of graphs, Journal of Combinatorial Optimizations, DOI;10.1007/s10878-020-006714-4.

[73] Fawad Ali, Saba Fatima, **Wei Wang***, On the power graphs of certain finite groups, Linear and Multilinear Algebra, to appear.

[72] H. L. Lu, **W. Wang*** and Y.L. Jiang, On the complexity of all (g,f)-factors problems, Discrete Math., 344 (2) (2021) 112193

[71] H. L. Lu*,** W. Wang** and J. Yan, Antifactor of regular bipartite graphs, Discrete Math. Theor. Comput. Sci., 22 (1) 2020.

[70] **W. Wang**, L.H. Qiu, J.G. Qian, W. Wang*, Generalized spectral characterizations of mixed graphs, The Electronic Journal of Combin., 27 (4) (2020), #P 4.55

[69] Zishen Yang, **Wei Wang*** and Majun Shi, Algorithms and complexity for a class of combinatorial optimization problems with labeling, JOTA, to appear.

[68] Zishen Yang, Majun Shi and** Wei Wang*** , Greedy approximation for the minimum connected dominating set with labeling, to appear.

[67] Majun Shi, Zishen Yang, Donghyun Kim and **Wei Wang***, Non-monotone submodular function maximization under k-system constraint, JOCO, appear.

[66] Zishen Yang, Wei Wang and Donghyun Kim, On multi-path routing for reliable communications in failure interdependent complex networks, JOCO, to appear.

[65] Y.Z. Ji, S.C. Gong, **W. Wang*,** Constructing cospectral bipartite graphs, Discrete Math., 343 (2020) 112020

[64] Lihong Qiu, Yizhe Ji, **W. Wang**, On a theorem of Godsil and McKay on the construction of cospectral graphs, Linear Algebra Appl., 603 (2020) 265-274.

[63] F.J. Liu*, **W Wang**, T. Yu, H.J. Lai, Genearlized cospectral graphs with and without Hamiltionian cycles, Linear Algebra Appl., 585 (2020) 199-208

[62] L.H. Qiu, Y.Z. Ji, **W. Wang***, On the generalized spectral characterizations of Eulerian graphs, The Electronic Journal of Combinatorics, 26 (1), 2019, #P1.9.

[61] F. J. Liu* ,J. Siemons, **W. Wang**, New Families of graphs determined by their generalized spectrum, Discrete Math., 342 (2019) 260-268.

[60] **W. Wang***, L.H. Qiu, Y.L. Hu, Cospectral graphs, GM-switching and regular rational orthogonal matrices of level p , Linear Algebra Appl.,156 (2019) 154-177.

[59] L.H. Mao, S.M. Cioaba, **W. Wang***, Spectral characterization of the complete graph removing a path of small length, Discrete Applied Math., 257 (2019) 260-268.

[58] Y.C. Li, **W**.** Wang*** and Z.S. Yang, Connected vertex cover problem on k-regular graphs, J. Combin. Opti., 38 (2019) 635-645.

[57] L.H. Qiu, Y. Z. Ji and **W. Wang***, A new arithmetic criterion for graphs being determined by their generalized Q-spectrum, Discrete Math., 342 (2019) 2770-2782.

[56] X. L. Liu, Z.S. Yang, **W. Wang***, Algorithm and complexity of the two disjoint connected dominating sets problem on trees, Applied Mathematics and Computation,Volume 337, 15 November 2018, Pages 419-427.

[55] B. Liu, **W. Wang**, D. Kim*, Y. Li, S. Kwon, Y. Jiang, "On Practical Construction of Quality Fault-tolerant Virtual Backbone in Homogeneous Wireless Networks," IEEE/ACM Transactions on Networking (ToN), vol. 26, issue 1, pp. 412-421, February 2018.

[54] D. Kim*, L. Xue, D. Li, Y. Zhu, **W. Wang**, A. O. Tokuta, "On Trajectory Planning of Multiple Drones To Minimize Latency in Search-and-reconnaissance Operations," IEEE Transactions on Mobile Computing (TMC), vol. 16, issue 11, pp. 3156-3166, November 2017..

[53] F. Liu*, **W. Wang**, A note on non-R-cospectral graphs, Electronic J. Combin., (24) (1), 2017, #P1.48.

[52] L.H. Mao and **W. Wang***, A remark on the spectral characterizations of the disjoint union of two graphs, LAA, 518 (2017) 1-13.

[51] Y.C. Li, Z.S. Yang, **W. Wang***, Complexity and Algorithms for the Connected Vertex Cover Problem in 4-regular Graphs, Applied Mathematics and Computation, 301 (2017) 107-114.

[50] D. Kim*, **W. Wang**, J. Son, W. Wu, W. Lee, A.O. Tokuta, "Maximum Lifetime Combined Barrier-coverage of Weak Static Sensors and Strong Mobile Sensors," IEEE Transactions on Mobile Computing (TMC), volume 16, Issue 7, 2017, pp 1956-1957

[49] D. Kim, Y. Velasco, **W. Wang**, R.N. Uma, R. Hussain, and S. Lee, "A New Comprehensive RSU Installation Strategy for Cost-Efficient VANET Deployment," IEEE Transactions on Vehicular Technology (TVT), volume 66, Issue 5, 2017, pp 4200-4211.

[48] **W. Wang**, A simple arithmetic criterion for a graph determined by its generalized spectrum, J. Combin. Theory, Ser. B, 122 (2017) 438-451.

[47] **W. Wang**, B. Liu, D. Kim, J. Wang, D. Li, and W. Gao, "A New Constant Factor Approximation To Construct Highly Fault-tolerant Connected Dominating Set in Unit Disk Graph," IEEE/ACM Transactions on Networking (ToN), volume 15, Issue 1, 2017, pp 18-28.

[46] B. Liu, **W. Wang**, D. Kim*, D. Li, J. Wang, A.O. Tokuta, and Y. Jiang, " On Approximating Minimum 3-Connected m-Dominating Set Problem in Unit Disk Graph”, IEEE/ACM Transactions on Networking (ToN), vol 24, No.5, pp 2690-2701, October 2016.

[45] Donghyun Kim, Hao Guo, **Wei Wang**, Joong-Lyul Lee, Sung-Sik Kwon, and Alade O. Tokuta, "On Efficient Vaccine Distribution Strategy to Suppress Pandemic using Social Relation," Discrete Mathematics, Algorithms and Applications (DMAA), vol. 8, no.1, March 2016.

[44] X.L. Liu, Z. S. Yang, **W. Wang***, An exact solution for the latency bounded target set selection problem on some special family of graphs, Discrete Applied Math., 203 (2016) 111-116.

[43] Donghyun Kim, **Wei Wang***, Deying Li, Joong-Lyul Lee, Weili Wu, and Alade O. Tokuta, "A Joint Optimization of Data Ferry Trajectories and Communication Powers of Ground Sensors for Long-term Environmental Monitoring," Journal Of Combinatorial Optimization , 31 (4) (2016) 1550-1568.

[42] **W. Wang***, D. Kim, M. Tetteh, J. Liang, W. Lee, on cost-aware biased respondent group selection for minority opinion survey, Discrete Mathematics, Algorithms and Applications, Volume 08, Issue 04, December 2016

[41] X.L. Liu, , **W. Wang***, D. Kim, Z. S. Yang, Alade O. Tokuta, Yaolin Jiang, The First Constant Factor Approximation for Minimum Partial Connected Dominating Set Problem in Growth-bounded Graphs", Wireless Networks,22 (2) (2016) 553-562.

[40] D. Liang, L. Mei, J. Willson, **W. Wang***, A simple greedy approximation algorithm for the connected k-center problem, J. Comb. Opti., 31(4) (2016) 1417-1429.

[39] D. Liang, Z. Zhang, **W. Wang***, Y. Jiang, Approximation algorithms for minimum weight partial connected set cover problem, J. Comb. Opti., 31 (2016) 696-712.

[38] L. Mao, **W. Wang***, On the construction of graphs determined by their generalized characteristic polynomials, Linear Algebra and Its Applications, 485 (15) ( 2015) 454–466.

[37] H.L Lu, **W. Wang,** Q.Y. Lin*, On edge connectivity and parity factor, Acta Mathemetica Sinica, English series, 31 (5) (2015)772-776.

[36] L. Mao, F. Liu, **W. Wang***, A new method for constructing graphs determined by their generalized spectrum, Linear Algebra Appl., 477(2015)112-127.

[35] D. Kim*, **W. Wang,** W. Wu, and A. O. Tokuta, Fault-Tolerant Connected Dominating Set, Encyclopedia of Algorithms, 2nd Edition, Springer.

[34] D. Kim*, R.N. Uma, B. H. Abay, W. Wu, **W. Wang,** A. O. Tokuta, Minimum Latency Multiple Data MULE Trajectory Planning in Wireless Sensor Networks, IEEE Transactions on Mobile Computing, vol 13, Issue 4, 2014, Page 838-851.

[33] H.L. Lu*, **W. Wang**, On perfect k-matching, Graphs and Combinatorics, 30 (2014) 229-235

[32] W. Wang*, Generalized spectral characterization of graphs revisited, Electronic J. Combin. vol. 20, Issue 4，2013，# P4. (SCI:238RQ)

[31] D. Kim*, **W. Wang**, W. Wu, D. Li, C. Ma, N. Sohaee, W. Lee, Y. Wang, D. Z. Du, On Bounding Node-to-sink Latency in Wireless Sensor Networks with Multiple Sinks, International Journal of Sensor Networks, 13 (2013)13-29. (SCI:140VM)

[30] **W. Wang***, D. Kim, M. An, W. Gao, X. Li, Z. Zhang, W. Wu, On Construction of Quality Fault-Tolerant Virtual Backbone in Wireless Networks, IEEE/ACM Transactions on networking, 21 (2013)）1499-1510.

[29] X.L. Liu, H.L. Lu, **W. Wang*** and W. Wu, PTAS for the minimum k-path connected vertex cover problem on unit disk graphs, J. Golobal Optimization, 56 (2013) 449-458. (SCI:160JZ)

[28] **W. Wang***, L.H. Mao, H.L. Lu, On bi-regular graphs determined by their generalized characteristic polynomials, Linear Algebra Appl., 438 (2013) 3076-3084 (SCI:102FL)

[27] S. Shan*, W. Wu, **W. Wang**, H.J. Du , X.F. Gao, A.L. Jiang, Constructing minimum interference connected dominating set for multi-channel multi-radio multi-hop wireless network, International Journal of Sensor Networks ,11(2012) 100-108 (SCI:916UC)

[26] 李峰, 徐宗本, 赵海兴 , **王卫**, 字典乘积网络的支撑树计数,中国科学: 信息科学, 2012 年第42 卷第8 期: 949-959

[25] Z. Wang*, **W. Wang**, J. Kim, B. Thuraisingham, W. Wu, PTAS for the minimum weighted dominating set in growth bounded graphs, J. Golobal Optimization, 53 (3) (2012) 641-648.

[24] W. Zhang, Z. Zhang*, **W. Wang**, F. Zou, W. Lee, Polynomial time approximation scheme for t-latency bounded information propagation problem in wireless networks, J. of Combinatorial Optimization, 23 (2012）451-461

[23] X. Zhu, W. **Wang***, S. Shan, Z. Wang, W. Wu, PTAS for weighted dominating set problem with smooth weight on unit disk graphs, J. of Combinatorial Optimization, 23 (4) (2012) 443-450

[22] D. Kim*, **W. Wang**, N. Sohaee, C. Ma, W. Wu, W. Lee, D. Du,, Minimum data latency bound k-sink placement problem in wireless sensor networks, IEEE/ACM Transactions on Networking, 19(2011)1344-1353.

[21] **W. Wang***, F. Li, H.L., Lu, Z.B. Xu, Graphs determined by their generalized characteristic polynomials, Linear Algebra and Its Appl.434(2011)1378-1387.

[20] F. Li, **W. Wang***, Z.B. Xu, H.X. Zhao, Some results on the lexicographic product of graphs, Applied Mathematics Letters, 24(2011)1924-1926.

[19] H.L. Lu*, **W. Wang,** B. Bai, Vertex-deleted subgraphs and regular factors from regular graph, Discrete Math.,311(2011) 2044-2048.

[18] L.D. Fan, Z. Zhang, **W. Wang**, PTAS for weighted connected vertex cover with c-local conditions on unit disk graphs, J. of Combinatorial Optimization, 22（2011) 663-673

[17] **W. Wang**, C.X. Xu, On the asymptotic behaviors of graphs determined by their generalized spectra, Discrete Math., 310 (2010)70-76

[16] D. Kim,** W. Wang**, L. Ding, et al., Minimum total routing path clustering problem in Multi-hop 2-D Underwater sensor networks , Optimization Letters, 4 (2010) 383-392.

[15] S. Shan, **W. Wang**, H. Du, X. Gao, W. Wu, An efficient approximation for minimum latency broadcast in Multi-channel Multi-hop wireless networks, IEEE Communication Letters, vol. 14, Issue 5, 2010, pp 435-437.

[14] X. Gao*,** W. Wang**, Z. Zhang, S. Zhu, W. Wu A PTAS for d-hop dominating set problem on growth-bounded graphs, Optimization Letters,4 (2010) 321-333.

[13] D. Kim, Z. Zhang, X. Li, W. Wang, W. Wu, D. Du, A better approximation algorithm for computing connected dominating sets in unit ball graphs, IEEE Transactions on Mobile Computing 9 (2010) 1108-1118.

[12] C. Ma, D. Kim, Y. Wang, **W. Wang,** et al., Hardness of k-vertex connected subgraph augmentation problem, J. of Combinatorial Optimization,20(2010)249-258.

[11] **W.Wang**, A Counterexample to a conjecture of Friedland，Linear Algebra and Its Appl,.430 (2009) 2026-2029.

[10] **W. Wang**, A uniqueness theorem on matrices and reconstruction, J. Combin. Theory, Ser. B, 99 (2009) 261-265.

[9] **W. Wang**, Z.B. Xu, On a conjecture of He concerning the spectral reconstruction of matrices , J. of Algebraic Combinatorics, 30(2009)311-321.

[8] **W. Wang**, D. Kim, N. Sohaee, C. Ma, W. Wu, A PTAS for minimum d-Hop underwater sink placement problem in 2-D Underwater Sensor Networks, Discrete Mathematics, Algorithms and Applications, vol.1, No.2, (2009) 283-289.

[7] **W. Wang**, D. Kim, J. Willson, B. Thuraisingham, W. Wu, A better approximation for minimum average routing path clustering problem in 2-D under water sensor network, Discrete Mathematics, Algorithm and Application, vol., 1, No.2, (2009) 175-191.

[6] **W. Wang**, C. X. Xu. Some results on the spectral reconstruction problem, Linear Algebra Appl., 2007 (427): 151-159. (SCI: 221SZ)

[5] **W. Wang**, C. X. Xu. Note: On the generalized spectral characterization of graphs having an isolated vertex, Linear Algebra Appl., 2007 (425):210-215. (SCI:184AC)

[4] **W. Wang**, C. X. Xu. On the spectral characterization of T-shape trees, Linear Algebra Appl., 2006 (414): 492-501. (SCI: 028JD)

[3] **W. Wang**, C. X. Xu. Note: The T-shape tree is determined by its Laplacian spectrum, Linear Algebra Appl., 2006 (419):78-81. (SCI: 097TV)

[2] **W. Wang,** C. X. Xu. An excluding algorithm for testing whether a family of graphs are determined by their generalized spectra, Linear Algebra Appl., 2006 (418): 62-74. (SCI: 088OL)

[1] **W. Wang**, C. X. Xu. A sufficient condition for a family of graphs being determined by their generalized spectra, European Journal of Combin.,2006 (27):826-840. (SCI: 049FG)

Peer-reviewed conference papers

[1] D. Kim, **W. Wang,** X. Li, Z. Zhang and W. Wu, A New Constant Factor Approximation for Computing 3-Connected m-Dominating Sets in Homogeneous Wireless Networks, in : Proceedings of the 29th IEEE Conference on Computer Communications (IEEE INFOCOM 2010), San Diego, California, USA, March 15-19, 2010., San Diego, California, USA, March 15-19, 2010.

[2] D. Kim, B. Abay, R.N. Uma, W. Wu, **W. Wang**, A. Tokuta, Minimizing data collection latency in wireless sensor networks with multiple mobile elements, IEEE NFOCOM 2012.

[3] Lirong Xue, Donghyun Kim, Yuqing Zhu, Deying Li, **Wei Wang**, and Alade O. Tokuta, "Multiple Heterogeneous Data Ferry Trajectory Planning in Wireless Sensor Networks," Proceedings of the 33rd IEEE International Conference on Computer Communications (INFOCOM 2014), April 27, 2014 - May 2, 2014, Toronto, Canada.

[4] **Wei Wang,** Bei Liu, Donghyun Kim, Deying Li, Jingyi Wang, and Yaolin Jiang, "A Better Constant Approximation of Minimum 3-connected m-dominating Set Problem in Unit Disk Graph using Tutte Decomposition," Proceedings of the 34th IEEE International Conference on Computer Communications (INFOCOM 2015), April 26-30, 2015, Hong Kong.