On the critical periods of Liénard systems with cubic restoring forces. - Zhengdong Du (Int. J. Math. Math. Sci., 2004)

Limit cycles bifurcate from centers of discontinuous quadratic systems. - Xingwu Chen; Zhengdong Du (Comput. Math. Appl., 2010)

Adaptive Extraction of Principal Colors Using an Improved Self-Growing Network. - Yurong Li; Zhengdong Du; Hongguang Fu (J. Comput., 2010)

Bifurcation of periodic orbits with multiple crossings in a class of planar Filippov systems. - Zhengdong Du; Yurong Li (Math. Comput. Model., 2012)

A space-time equivalence analysis and application of array signal processing based on circular arrays. - Zhengdong Du; Ping Wei (ICNC, 2013)

Bifurcation of periodic orbits emanated from a vertex in discontinuous planar systems. - Nan Hu; Zhengdong Du (Commun. Nonlinear Sci. Numer. Simul., 2013)

Degenerate Grazing Bifurcations in a Simple Bilinear Oscillator. - Tingting Yi; Zhengdong Du (Int. J. Bifurc. Chaos, 2014)

Stability and Perturbations of Homoclinic Loops in a Class of Piecewise Smooth Systems. - Shuang Chen; Zhengdong Du (Int. J. Bifurc. Chaos, 2015)

Bifurcation of Nonhyperbolic Limit Cycles in Piecewise Smooth Planar Systems with Finitely Many Zones. - Yurong Li; Liping Yuan; Zhengdong Du (Int. J. Bifurc. Chaos, 2017)

Bifurcation of Periodic Orbits Crossing Switching Manifolds Multiple Times in Planar Piecewise Smooth Systems. - Zhihui Fan; Zhengdong Du (Int. J. Bifurc. Chaos, 2019)

Limit Cycles of Planar Piecewise Smooth Quadratic Systems with Focus-Parabolic Type Critical Points. - Liping Sun; Zhengdong Du (Int. J. Bifurc. Chaos, 2021)

Crossing Limit Cycles in Planar Piecewise Linear Systems Separated by a Nonregular Line with Node-Node Type Critical Points. - Liping Sun; Zhengdong Du (Int. J. Bifurc. Chaos, 2024)