Heping Zhang

According to our database, Heping Zhang authored at least 164 papers between 1993 and 2024.

Collaborative distances:

• Dijkstra number of four.
• Erdős number of three.

2024

Minimum degree of minimal (<i>n</i>-10)-factor-critical graphs.

Jing Guo, Heping Zhang

Discret. Math., April, 2024

2023

The Path-Structure Connectivity of Augmented <i>k</i>-ary <i>n</i>-cubes.

Lina Ba, Yaxian Zhang, Heping Zhang

Comput. J., December, 2023

The maximum matching extendability and factor-criticality of 1-planar graphs.

Jiangyue Zhang, Yan Wu, Heping Zhang

Discret. Appl. Math., October, 2023

Complete forcing numbers of complete and almost-complete multipartite graphs.

Xin He, Heping Zhang

J. Comb. Optim., September, 2023

Structure connectivity of data center networks.

Lina Ba, Heping Zhang

Appl. Math. Comput., August, 2023

Minimally k-Factor-Critical Graphs for Some Large k.

Jing Guo, Heping Zhang

Graphs Comb., June, 2023

On anti-Kekulé and s-restricted matching preclusion problems.

Huazhong Lü, Xianyue Li, Heping Zhang

J. Comb. Optim., May, 2023

Correction to: Star-structure connectivity of folded hypercubes and augmented cubes.

Lina Ba, Hailun Wu, Heping Zhang

J. Supercomput., March, 2023

Star-structure connectivity of folded hypercubes and augmented cubes.

Lina Ba, Hailun Wu, Heping Zhang

J. Supercomput., 2023

Some tight bounds on the minimum and maximum forcing numbers of graphs.

Qianqian Liu, Heping Zhang

Discret. Appl. Math., 2023

A Consistent and Scalable Algorithm for Best Subset Selection in Single Index Models.

Borui Tang, Jin Zhu, Junxian Zhu, Xueqin Wang, Heping Zhang

CoRR, 2023

Identification of Key Nodes in Complex Networks Based on Network Representation Learning.

Heping Zhang, Sicong Zhang, Xiaoyao Xie, Taihua Zhang, Guojun Yu

IEEE Access, 2023

2022

Complete forcing numbers of graphs.

Xin He, Heping Zhang

Ars Math. Contemp., November, 2022

The cycle-structure connectivity of crossed cubes.

Lina Ba, Heping Zhang

Theor. Comput. Sci., 2022

Partial inverse maximum spanning tree problem under the Chebyshev norm.

Xianyue Li, Ruowang Yang, Heping Zhang, Zhao Zhang

J. Comb. Optim., 2022

Some novel minimax results for perfect matchings of hexagonal systems.

Xiangqian Zhou, Heping Zhang

Discret. Appl. Math., 2022

Relations between global forcing number and maximum anti-forcing number of a graph.

Yaxian Zhang, Heping Zhang

Discret. Appl. Math., 2022

Best Subset Selection in Reduced Rank Regression.

Canhong Wen, Ruipeng Dong, Xueqin Wang, Weiyu Li, Heping Zhang

CoRR, 2022

The Star-Structure Connectivity and Star-Substructure Connectivity of Hypercubes and Folded Hypercubes.

Lina Ba, Heping Zhang

Comput. J., 2022

Super-taxon in human microbiome are identified to be associated with colorectal cancer.

Wei Dai, Cai Li, Ting Li, Jianchang Hu, Heping Zhang

BMC Bioinform., 2022

iProbiotics: a machine learning platform for rapid identification of probiotic properties from whole-genome primary sequences.

Yu Sun, Haicheng Li, Lei Zheng, Jinzhao Li, Yan Hong, Pengfei Liang, Lai-Yu Kwok, Yongchun Zuo, Wenyi Zhang, Heping Zhang

Briefings Bioinform., 2022

Continuous forcing spectrum of regular hexagonal polyhexes.

Yaxian Zhang, Heping Zhang

Appl. Math. Comput., 2022

The anti-forcing spectra of (4, 6)-fullerenes.

Lingjuan Shi, Heping Zhang, Lifang Zhao

Appl. Math. Comput., 2022

2021

Surrogate Residuals for Discrete Choice Models.

Chao Cheng, Rui Wang, Heping Zhang

J. Comput. Graph. Stat., 2021

Characterizing the fullerene graphs with the minimum forcing number 3.

Lingjuan Shi, Heping Zhang, Ruizhi Lin

Discret. Appl. Math., 2021

Graphs where each spanning tree has a perfect matching.

Baoyindureng Wu, Heping Zhang

Contributions Discret. Math., 2021

Issues of Z-factor and an approach to avoid them for quality control in high-throughput screening studies.

Xiaohua Douglas Zhang, Dandan Wang, Shixue Sun, Heping Zhang

Bioinform., 2021

Capacitated Partial Inverse Maximum Spanning Tree Under the Weighted l_∞-norm.

Xianyue Li, Ruowang Yang, Heping Zhang, Zhao Zhang

Proceedings of the Combinatorial Optimization and Applications, 2021

2020

Approximation algorithms for capacitated partial inverse maximum spanning tree problem.

Xianyue Li, Zhao Zhang, Ruowang Yang, Heping Zhang, Ding-Zhu Du

J. Glob. Optim., 2020

Fractional matching preclusion number of graphs and the perfect matching polytope.

Ruizhi Lin, Heping Zhang

J. Comb. Optim., 2020

On the anti-Kekulé number of (4, 5, 6)-fullerenes.

Lifang Zhao, Heping Zhang

Discret. Appl. Math., 2020

Matching preclusion for direct product of regular graphs.

Ruizhi Lin, Heping Zhang, Weisheng Zhao

Discret. Appl. Math., 2020

2019

Conditional Matching Preclusion for Folded Hypercubes.

Ruizhi Lin, Heping Zhang

J. Interconnect. Networks, 2019

The (n, k)-Extendable Graphs in Surfaces.

Yushan Ma, Qiuli Li, Heping Zhang

Graphs Comb., 2019

An accurate and powerful method for copy number variation detection.

Feifei Xiao, Xizhi Luo, Ning Hao, Yue Niu, Xiangjun Xiao, Guoshuai Cai, Christopher I. Amos, Heping Zhang

Bioinform., 2019

Counting Clar structures of (4, 6)-fullerenes.

Lingjuan Shi, Heping Zhang

Appl. Math. Comput., 2019

2018

Construction for trees with unique minimum dominating sets.

Weisheng Zhao, Fan Wang, Heping Zhang

Int. J. Comput. Math. Comput. Syst. Theory, 2018

Upper bounds on the bondage number of the strong product of a graph and a tree.

Weisheng Zhao, Heping Zhang

Int. J. Comput. Math., 2018

Sharp upper bounds on the Clar number of fullerene graphs.

Yang Gao, Heping Zhang

Discuss. Math. Graph Theory, 2018

Anti-forcing polynomials for benzenoid systems with forcing edges.

Shuang Zhao, Heping Zhang

Discret. Appl. Math., 2018

Hexagonal systems with the one-to-one correspondence between geometric and algebraic Kekulé structures.

Yi Zhang, Heping Zhang

Discret. Appl. Math., 2018

Hamiltonian laceability in hypercubes with faulty edges.

Fan Wang, Heping Zhang

Discret. Appl. Math., 2018

Matching preclusion for n-grid graphs.

Qi Ding, Heping Zhang, Hui Zhou

Discret. Appl. Math., 2018

The isolated-pentagon rule and nice substructures in fullerenes.

Hao Li, Heping Zhang

Ars Math. Contemp., 2018

Construction for Trees without vertices contained in all minimum dominating sets.

Weisheng Zhao, Xiaolu Gao, Heping Zhang

Ars Comb., 2018

Application of Artificial Fish Swarm Algorithm in Vehicle Routing Problem.

Shiyu Jia, Kang Zhou, Yu Yang, Huaqing Qi, Yiting Zhen, Long Hu, Zhou Zhang, Heping Zhang

Proceedings of the Bio-inspired Computing: Theories and Applications, 2018

2017

Anti-forcing spectra of perfect matchings of graphs.

Kai Deng, Heping Zhang

J. Comb. Optim., 2017

Tight upper bound on the maximum anti-forcing numbers of graphs.

Lingjuan Shi, Heping Zhang

Discret. Math. Theor. Comput. Sci., 2017

Per-spectral characterizations of some bipartite graphs.

Tingzeng Wu, Heping Zhang

Discuss. Math. Graph Theory, 2017

A negative answer to a problem on generalized Fibonacci cubes.

Jianxin Wei, Heping Zhang

Discret. Math., 2017

On the maximum forcing and anti-forcing numbers of (4, 6)-fullerenes.

Lingjuan Shi, Hongwei Wang, Heping Zhang

Discret. Appl. Math., 2017

Matching preclusion and conditional edge-fault Hamiltonicity of binary de Bruijn graphs.

Ruizhi Lin, Heping Zhang

Discret. Appl. Math., 2017

Single coronoid systems with an anti-forcing edge.

Xiaodong Liang, Heping Zhang

Discret. Appl. Math., 2017

Extremal anti-forcing numbers of perfect matchings of graphs.

Kai Deng, Heping Zhang

Discret. Appl. Math., 2017

NP-completeness of anti-Kekulé and matching preclusion problems.

Huazhong Lü, Xianyue Li, Heping Zhang

CoRR, 2017

modSaRa: a computationally efficient R package for CNV identification.

Feifei Xiao, Yue Niu, Ning Hao, Yanxun Xu, Zhilin Jin, Heping Zhang

Bioinform., 2017

2016

3-Factor-Criticality of Vertex-Transitive Graphs.

Heping Zhang, Wuyang Sun

J. Graph Theory, 2016

Complete forcing numbers of primitive coronoids.

Shou-Jun Xu, Xiu-Song Liu, Wai Hong Chan, Heping Zhang

J. Comb. Optim., 2016

Maximally matched and super matched regular graphs.

Ruizhi Lin, Heping Zhang

Int. J. Comput. Math. Comput. Syst. Theory, 2016

The restricted edge-connectivity and restricted connectivity of augmented <i>k</i>-ary <i>n</i>-cubes.

Ruizhi Lin, Heping Zhang

Int. J. Comput. Math., 2016

Small Matchings Extend to Hamiltonian Cycles in Hypercubes.

Fan Wang, Heping Zhang

Graphs Comb., 2016

Proofs of two conjectures on generalized Fibonacci cubes.

Jianxin Wei, Heping Zhang

Eur. J. Comb., 2016

A maximum resonant set of polyomino graphs.

Heping Zhang, Xiangqian Zhou

Discuss. Math. Graph Theory, 2016

Extremal matching energy of complements of trees.

Tingzeng Wu, Weigen Yan, Heping Zhang

Discuss. Math. Graph Theory, 2016

The bondage number of the strong product of a complete graph with a path and a special starlike tree.

Weisheng Zhao, Heping Zhang

Discret. Math. Algorithms Appl., 2016

A minimax result for perfect matchings of a polyomino graph.

Xiangqian Zhou, Heping Zhang

Discret. Appl. Math., 2016

Per-spectral and adjacency spectral characterizations of a complete graph removing six edges.

Tingzeng Wu, Heping Zhang

Discret. Appl. Math., 2016

Matching preclusion for vertex-transitive networks.

Qiuli Li, Jinghua He, Heping Zhang

Discret. Appl. Math., 2016

Anti-forcing numbers of perfect matchings of graphs.

Hongchuan Lei, Yeong-Nan Yeh, Heping Zhang

Discret. Appl. Math., 2016

Fullerenes with the maximum Clar number.

Yang Gao, Qiuli Li, Heping Zhang

Discret. Appl. Math., 2016

4-Factor-Criticality of Vertex-Transitive Graphs.

Wuyang Sun, Heping Zhang

Electron. J. Comb., 2016

Forcing polynomials of benzenoid parallelogram and its related benzenoids.

Shuang Zhao, Heping Zhang

Appl. Math. Comput., 2016

Extremal hexagonal chains with respect to the coefficients sum of the permanental polynomial.

Wei Li, Zhongmei Qin, Heping Zhang

Appl. Math. Comput., 2016

2015

Solution to a conjecture on words that are bad and 2-isometric.

Jianxin Wei, Heping Zhang

Theor. Comput. Sci., 2015

Complete forcing numbers of catacondensed hexagonal systems.

Shou-Jun Xu, Heping Zhang, Jinzhuan Cai

J. Comb. Optim., 2015

Matchings extend to Hamiltonian cycles in k-ary n-cubes.

Fan Wang, Heping Zhang

Inf. Sci., 2015

2-resonant fullerenes.

Rui Yang, Heping Zhang

Eur. J. Comb., 2015

Non-matchable distributive lattices.

Haiyuan Yao, Heping Zhang

Discret. Math., 2015

Computing Affine Combinations, Distances, and Correlations for Recursive Partition Functions.

Sean Skwerer, Heping Zhang

CoRR, 2015

Modified screening and ranking algorithm for copy number variation detection.

Feifei Xiao, Xiaoyi Min, Heping Zhang

Bioinform., 2015

Some analytical properties of the permanental polynomial of a graph.

Tingzeng Wu, Heping Zhang

Ars Comb., 2015

Two types of matchings extend to Hamiltonian cycles in hypercubes.

Fan Wang, Heping Zhang

Ars Comb., 2015

Matching extension in toroidal quadrangulations II: the 3-extendable case.

Robert E. L. Aldred, Qiuli Li, Michael D. Plummer, Dong Ye, Heping Zhang

Australas. J Comb., 2015

2014

Hyper-Hamiltonian laceability of balanced hypercubes.

Huazhong Lü, Heping Zhang

J. Supercomput., 2014

Clar Structure and Fries Set of Fullerenes and (4, 6)-Fullerenes on Surfaces.

Yang Gao, Heping Zhang

J. Appl. Math., 2014

A note on the permanental roots of bipartite graphs.

Wei Li, Shunyi Liu, Heping Zhang

Discuss. Math. Graph Theory, 2014

Prescribed matchings extend to Hamiltonian cycles in hypercubes with faulty edges.

Fan Wang, Heping Zhang

Discret. Math., 2014

Decomposition theorem on matchable distributive lattices.

Heping Zhang, Dewu Yang, Haiyuan Yao

Discret. Appl. Math., 2014

On the global forcing number of hexagonal systems.

Heping Zhang, Jinzhuan Cai

Discret. Appl. Math., 2014

Face-Width of Pfaffian Braces and Polyhex Graphs on Surfaces.

Dong Ye, Heping Zhang

Electron. J. Comb., 2014

Fibonacci (p, r)-cubes which are partial cubes.

Jianxin Wei, Heping Zhang

Ars Comb., 2014

5-factor-critical graphs on the torus.

Qiuli Li, Heping Zhang

Ars Comb., 2014

2013

A left cerebellar pathway mediates language in prematurely-born young adults.

R. Todd Constable, Betty R. Vohr, Dustin Scheinost, Jennifer R. Benjamin, Robert K. Fulbright, Cheryl Lacadie, Karen C. Schneider, Karol H. Katz, Heping Zhang, Xenophon Papademetris, Laura R. Ment

NeuroImage, 2013

<i>l</i>₁l1-embeddability under the edge-gluing operation on graphs.

Guangfu Wang, Heping Zhang

Discret. Math., 2013

Super restricted edge-connectivity of graphs with diameter 2.

Li Shang, Heping Zhang

Discret. Appl. Math., 2013

Fibonacci (p, r)-cubes which are median graphs.

Lifeng Ou, Heping Zhang

Discret. Appl. Math., 2013

Matching extension in quadrangulations of the torus.

Robert E. L. Aldred, Qiuli Li, Michael D. Plummer, Heping Zhang

Australas. J Comb., 2013

2012

Matching preclusion for balanced hypercubes.

Huazhong Lü, Xianyue Li, Heping Zhang

Theor. Comput. Sci., 2012

Some Indices of Alphabet Overlap Graph.

Rong Yang, Zhao-Lan Yang, Heping Zhang

J. Comput. Sci. Technol., 2012

On the restricted matching extension of graphs on the torus and the Klein bottle.

Qiuli Li, Heping Zhang

Discret. Math., 2012

Computing the permanental polynomials of bipartite graphs by Pfaffian orientation.

Heping Zhang, Wei Li

Discret. Appl. Math., 2012

On the restricted matching extension of graphs in surfaces.

Qiuli Li, Heping Zhang

Appl. Math. Lett., 2012

2011

The use of classification trees for bioinformatics.

Xiang Chen, Minghui Wang, Heping Zhang

WIREs Data Mining Knowl. Discov., 2011

Sex differences in grey matter atrophy patterns among AD and aMCI patients: Results from ADNI.

Martha Skup, Hongtu Zhu, Yaping Wang, Kelly S. Giovanello, Ja-an Lin, Dinggang Shen, Feng Shi, Wei Gao, Weili Lin, Yong Fan, Heping Zhang

NeuroImage, 2011

Determining which Fibonacci (p, r)-cubes can be Z-transformation graphs.

Lifeng Ou, Heping Zhang, Haiyuan Yao

Discret. Math., 2011

2-extendability and k-resonance of non-bipartite Klein-bottle polyhexes.

Qiuli Li, Saihua Liu, Heping Zhang

Discret. Appl. Math., 2011

On forcing matching number of boron-nitrogen fullerene graphs.

Xiaoyan Jiang, Heping Zhang

Discret. Appl. Math., 2011

l₁-Embeddability of Hexagonal and Quadrilateral Mobius graphs.

Guangfu Wang, Heping Zhang

Ars Comb., 2011

On Diameter Stability of the Johnson Graph.

Ling Wang, Heping Zhang

Ars Comb., 2011

2010

Direct Sum of Distributive Lattices on the Perfect Matchings of a Plane Bipartite Graph.

Heping Zhang

Order, 2010

Some results on Laplacian spectral radius of graphs with cut vertices.

Xiaoling Zhang, Heping Zhang

Discret. Math., 2010

Maximally resonant polygonal systems.

Saihua Liu, Heping Zhang

Discret. Math., 2010

Forcing matching numbers of fullerene graphs.

Heping Zhang, Dong Ye, Wai Chee Shiu

Discret. Appl. Math., 2010

2-resonance of plane bipartite graphs and its applications to boron-nitrogen fullerenes.

Heping Zhang, Saihua Liu

Discret. Appl. Math., 2010

Embeddability of open-ended carbon nanotubes in hypercubes.

Heping Zhang, Guangfu Wang

Comput. Geom., 2010

Maximal conditional chi-square importance in random forests.

Minghui Wang, Xiang Chen, Heping Zhang

Bioinform., 2010

A note on path factors in claw-free graphs.

Heping Zhang, Shan Zhou

Ars Comb., 2010

Smallest generalized cuts and diameter-increasing sets of Johnson graphs.

Wantao Ning, Qiuli Li, Heping Zhang

Ars Comb., 2010

2009

On k-Resonant Fullerene Graphs.

Dong Ye, Zhongbin Qi, Heping Zhang

SIAM J. Discret. Math., 2009

Minimal 2-matching-covered graphs.

Shan Zhou, Heping Zhang

Discret. Math., 2009

Characterizations for P>=2-factor and P>=3-factor covered graphs.

Heping Zhang, Shan Zhou

Discret. Math., 2009

Fibonacci-like cubes as Z-transformation graphs.

Heping Zhang, Lifeng Ou, Haiyuan Yao

Discret. Math., 2009

Degree conditions for graphs to be lambda₃-optimal and super-lambda₃.

Li Shang, Heping Zhang

Discret. Math., 2009

Kirchhoff index of composite graphs.

Heping Zhang, Yujun Yang, Chuanwen Li

Discret. Appl. Math., 2009

Extremal fullerene graphs with the maximum Clar number.

Dong Ye, Heping Zhang

Discret. Appl. Math., 2009

2-extendability of toroidal polyhexes and Klein-bottle polyhexes.

Dong Ye, Heping Zhang

Discret. Appl. Math., 2009

Willows: a memory efficient tree and forest construction package.

Heping Zhang, Minghui Wang, Xiang Chen

BMC Bioinform., 2009

The Laplacian spectral radius of unicyclic graphs with k pendent vertices.

Xiaoling Zhang, Heping Zhang

Ars Comb., 2009

A Note on Path-Matchings.

Jingzhi Yan, Heping Zhang

Ars Comb., 2009

2008

Energy conservation in wireless sensor networks and connectivity of graphs.

Hao Li, Huifang Miao, Li Liu, Lian Li, Heping Zhang

Theor. Comput. Sci., 2008

Resonance Graphs and a Binary Coding for the 1-Factors of Benzenoid Systems.

Heping Zhang, Peter Che Bor Lam, Wai Chee Shiu

SIAM J. Discret. Math., 2008

The Hosoya polynomial decomposition for hexagonal chains.

Shoujun Xu, Heping Zhang

Math. Comput. Model., 2008

Path-comprehensive and vertex-pancyclic properties of super line graph <i>I</i>.

Xia Li, Hao Li, Heping Zhang

Discret. Math., 2008

Relations between Clar structures, Clar covers, and the sextet-rotation tree of a hexagonal system.

Shan Zhou, Heping Zhang, Ivan Gutman

Discret. Appl. Math., 2008

None of the coronoid systems can be isometrically embedded into a hypercube.

Heping Zhang, Shoujun Xu

Discret. Appl. Math., 2008

The Hosoya polynomial decomposition for catacondensed benzenoid graphs.

Shoujun Xu, Heping Zhang

Discret. Appl. Math., 2008

Hosoya polynomials under gated amalgamations.

Shoujun Xu, Heping Zhang

Discret. Appl. Math., 2008

LOT: a tool for linkage analysis of ordinal traits for pedigree data.

Meizhuo Zhang, Rui Feng, Xiang Chen, Buqu Hu, Heping Zhang

Bioinform., 2008

2007

Sufficient conditions for graphs to be <i>lambda'</i>-optimal and super-<i>lambda'</i>.

Li Shang, Heping Zhang

Networks, 2007

A characterization of the interval distance monotone graphs.

Heping Zhang, Guangfu Wang

Discret. Math., 2007

Resonance of Plane Bipartite Graphs.

Jingrong Chen, Heping Zhang

Ars Comb., 2007

A min-max result on outerplane bipartite graphs.

Heping Zhang, Haiyuan Yao, Dewu Yang

Appl. Math. Lett., 2007

2006

Construction for bicritical graphs and <i>k</i>-extendable bipartite graphs.

Fuji Zhang, Heping Zhang

Discret. Math., 2006

2005

Case Report: A High Productivity/Low Maintenance Approach to High-performance Computation for Biomedicine: Four Case Studies.

Nicholas Carriero, Michael V. Osier, Kei-Hoi Cheung, Perry L. Miller, Mark Gerstein, Hongyu Zhao, Baolin Wu, Scott Rifkin, Joseph T. Chang, Heping Zhang, Kevin P. White, Kenneth R. Williams, Martin H. Schultz

J. Am. Medical Informatics Assoc., 2005

k-factor-covered Regular Graphs.

Jia Shen, Heping Zhang

Ars Comb., 2005

Regular Coronoids and Ear Decompositions of Plane Elementary Bipartite Graphs.

Heping Zhang

Proceedings of the Discrete Geometry, 2005

2004

<i>Z</i>-transformation graphs of perfect matchings of plane bipartite graphs.

Heping Zhang, Fuji Zhang, Haiyuan Yao

Discret. Math., 2004

Z-transformation graphs of maximum matchings of plane bipartite graphs.

Heping Zhang, Rijun Zha, Haiyuan Yao

Discret. Appl. Math., 2004

Correcting the loss of cell-cycle synchrony in clustering analysis of microarray data using weights.

Fenghai Duan, Heping Zhang

Bioinform., 2004

The Z-Transformation graph for an outerplane bipartite graph has a Hamilton path.

Heping Zhang, Lingbo Zhao, Haiyuan Yao

Appl. Math. Lett., 2004

2003

A Distributive Lattice on the Set of Perfect Matchings of a Plane Bipartite Graph.

Peter Che Bor Lam, Heping Zhang

Order, 2003

Cell rotation graphs of strongly connected orientations of plane graphs with an application.

Heping Zhang, Peter Che Bor Lam, Wai Chee Shiu

Discret. Appl. Math., 2003

2000

Total Z-transformation graphs of perfect matching of plane bipartite graphs.

Heping Zhang, Fuji Zhang

Electron. Notes Discret. Math., 2000

The Clar covering polynomial of hexagonal systems III.

Heping Zhang, Fuji Zhang

Discret. Math., 2000

Plane elementary bipartite graphs.

Heping Zhang, Fuji Zhang

Discret. Appl. Math., 2000

1999

Block Graphs of Z-transformation Graphs of Perfect Matchings of Plane Elementary Bipartite Graphs.

Heping Zhang, Fuji Zhang

Ars Comb., 1999

1997

Perfect Matchings of Polyomino Graphs.

Heping Zhang, Fuji Zhang

Graphs Comb., 1997

The Clar covering polynomial of hexagonal systems with an application to chromatic polynomials.

Heping Zhang

Discret. Math., 1997

A Note on the Number of Perfect Matchings of Bipartite Graphs.

Fuji Zhang, Heping Zhang

Discret. Appl. Math., 1997

The Rotation Graphs of Perfect Matchings of Plane Bipartite Graphs.

Heping Zhang, Fuji Zhang

Discret. Appl. Math., 1997

1996

The connectivity of Z-transformation graphs of perfect matchings of polyominoes.

Heping Zhang

Discret. Math., 1996

A solution to Gutman's problem on the characteristic polynomial of a bipartite graph.

Xueliang Li, Heping Zhang

Discret. Math., 1996

The Clar Covering Polynomial of Hexagonal Systems I.

Heping Zhang, Fuji Zhang

Discret. Appl. Math., 1996

1993

Hexagonal Systems with Fixed Bonds.

Fuji Zhang, Xueliang Li, Heping Zhang

Discret. Appl. Math., 1993