#### Filter Results:

- Full text PDF available (5)

#### Publication Year

1985

2010

#### Publication Type

#### Co-author

#### Publication Venue

#### Key Phrases

Learn More

- Guantao Chen, Joan P. Hutchinson, Wiktor Piotrowski, Warren E. Shreve, Bing Wei
- Ars Comb.
- 2001

A given nonincreasing sequence D = (d1, d2, · · · , dn) is said to contain a (nonincreasing) repetition sequence D * = (di 1 , di 2 , · · · , di k) for some k ≤ n − 2 if all values of D − D * are distinct and for any di l ∈ D * there exists some dt ∈ D − D * such that di l = dt. For any pair of integers n and k with n ≥ k + 2, we investigate the existence… (More)

- Marvin D. Nelson, Kendall E. Nygard, John H. Griffin, Warren E. Shreve
- Computers & OR
- 1985

- Xiaotao Cai, Warren E. Shreve
- Discrete Mathematics
- 2001

For any natural number k, a graph G is said to be pancyclic mod k if it contains a cycle of every length modulo k. In this paper, we show that every K 1,4-free graph G with minimum degree δ(G) ≥ k + 3 is pancyclic mod k and every claw-free graph G with δ(G) ≥ k + 1 is pancyclic mod k, which confirms Thomassen's conjecture [8] for claw-free graphs.

- Guantao Chen, Wiktor Piotrowski, Warren E. Shreve
- Journal of Graph Theory
- 1996

- Guantao Chen, Jenö Lehel, Michael S. Jacobson, Warren E. Shreve
- Journal of Graph Theory
- 1998

- WARREN E. SHREVE
- 2010

A result of Ladas; Lakshmikantham, and Papadakis [1] concerning oscillation caused by lag in linear first order retarded argument differential equations is generalized to the sublinear case. Examples showing that such generalization to the superlinear case is impossible are given. 0. Introduction. It is known ([1], for example) that (A) g e C(R, R), g(t) <… (More)

- Guantao Chen, Ralph J. Faudree, Warren E. Shreve
- Ars Comb.
- 1998

- Guantao Chen, Richard H. Schelp, Warren E. Shreve
- Eur. J. Comb.
- 1997

- Xiaotao Cai, Warren E. Shreve
- Ars Comb.
- 2001

For two integers k(> 0) and s(≥ 0), a cycle of length l is called an (s mod k)-cycle if l ≡ s mod k. In this paper, the following conjecture of Chen, Dean, and Shreve [5] is proved: Every 2-connected graph with at least six vertices and minimum degree at least three contains a (2 mod 4)-cycle. 1 INTRODUCTION We use [2] for our notation and terminology. Our… (More)

- Guantao Chen, Richard H. Schelp, Warren E. Shreve
- Discrete Mathematics
- 1997