To demonstrate the existence of singular parity-time symmetry(PT-symmetry)broken point in optics system,we designed a on......

Jumping robot has a good capability of passing unstructured environment barriers,it also has a wide range of application......

在化学反应中一类三分子饱和反应的数学模型为__应用微分方程定性理沦，研究了该系统极限环的存在性、不存在性和惟一性问题．“,”Dev......

We study complex involutive algebras generated by a single nonselfadjoint idempotent and use them to construct a family ......

通过编程计算,研究了一类三次系统的中心-焦点判定问题,得到了直接用系统的系数表示的奇点量公式与可积性条件;同时给出了系统的6......