| 2008 |
|---|
| 5 | EE | Haicheng Ma,
Haizhen Ren:
The chromatic equivalence classes of the complements of graphs with the minimum real roots of their adjoint polynomials greater than -4.
Discrete Mathematics 308(10): 1830-1836 (2008) |
| 2007 |
|---|
| 4 | EE | Haizhen Ren,
Fuji Zhang:
Extremal double hexagonal chains with respect to k-matchings and k-independent sets.
Discrete Applied Mathematics 155(17): 2269-2281 (2007) |
| 3 | EE | Haicheng Ma,
Haizhen Ren:
The new methods for constructing matching-equivalence graphs.
Discrete Mathematics 307(1): 125-131 (2007) |
| 2004 |
|---|
| 2 | EE | Haicheng Ma,
Haizhen Ren:
sigma-polynomials.
Discrete Mathematics 285(1-3): 341-344 (2004) |
| 2002 |
|---|
| 1 | EE | Haizhen Ren:
On the chromaticity of K4 homeomorphs.
Discrete Mathematics 252(1-3): 247-257 (2002) |
