Discrete Mathematics, Volume 123

Volume 123, Numbers 1-3, December 1993

• Y. P. Liu:
  Preface. 1
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• Wenchang Chu, Leetsch C. Hsu:
  On some classes of inverse series relations and their applications. 3-15
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• Zongduo Dai, Xuning Feng, Mulan Liu, Zhe-xian Wan:
  Nonlinear feedforward sequences of m-sequences I. 17-34
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• Feng Ming Dong, Yanpei Liu:
  Counting rooted near-triangulations on the sphere. 35-45
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• Zhicheng Gao:
  The number of degree restricted maps on general surfaces. 47-63
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• Yuan Hong:
  Bounds of eigenvalues of graphs. 65-74
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• Qiao Li, Jiayu Shao:
  The index set problem for Boolean (or nonnegative) matrices. 75-92
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• Yanpei Liu:
  On functional equations arising from map enumerations. 93-109
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• Feng Shi, Weixuan Li:
  The density of a maximum minimal cut in the subset lattice of a finite set is almost one. 111-115
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• Shou-Tian Ting, Shu-Yu Zhao:
  The general Steiner problem in rectangular crisscross space. 117-120
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• Gui-Zhang Tu:
  A combinatorial formula relating to Hirota's bilinear equations. 121-129
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• Zhe-xian Wan:
  Anzahl theorems in finite singular symplectic, unitary and orthogonal geometries. 131-150
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• Wan-Di Wei, Shuhong Gao, Benfu Yang:
  Cyclic near difference sets of type 1. 151-177
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• Wan-Di Wei, Ju-Yong Xu:
  Cycle index of direct product of permutation groups and number of equivalence classes of subsets of Z_v. 179-188
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• Lie Zhu:
  Some recent developments on BIBDs and related designs. 189-214
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