Pingguang Zhang

Available identifiers

zbMath Open zhang.pingguangMaRDI QIDQ202780

List of research outcomes

Publication	Date of Publication	Type
https://portal.mardi4nfdi.de/entity/Q5298050	2007-07-16	Paper
Uniqueness of limit cycle for the quadratic systems with weak saddle and focus	2005-01-25	Paper
On the distribution and number of limit cycles for quadratic systems with two foci	2004-06-09	Paper
https://portal.mardi4nfdi.de/entity/Q4454075	2004-03-07	Paper
https://portal.mardi4nfdi.de/entity/Q4710099	2003-01-01	Paper
https://portal.mardi4nfdi.de/entity/Q3154132	2002-11-14	Paper
https://portal.mardi4nfdi.de/entity/Q3154148	2002-11-14	Paper
https://portal.mardi4nfdi.de/entity/Q4778299	2002-11-14	Paper
https://portal.mardi4nfdi.de/entity/Q2765012	2002-10-15	Paper
On the number of limit cycles for the quadratic systems with a weak focus and a strong focus	2002-09-29	Paper
https://portal.mardi4nfdi.de/entity/Q2725261	2002-05-07	Paper
https://portal.mardi4nfdi.de/entity/Q3836362	2000-11-14	Paper
https://portal.mardi4nfdi.de/entity/Q4496957	2000-08-21	Paper
Quadratic systems with a weak focus and a strong focus	1999-10-14	Paper
https://portal.mardi4nfdi.de/entity/Q4391849	1999-02-02	Paper
https://portal.mardi4nfdi.de/entity/Q4693618	1994-03-02	Paper
Existence and uniqueness of limit cycles for a class of normal form equations with codimension two singularities	1993-08-12	Paper
https://portal.mardi4nfdi.de/entity/Q4025510	1993-02-18	Paper
https://portal.mardi4nfdi.de/entity/Q4004553	1992-09-27	Paper
https://portal.mardi4nfdi.de/entity/Q3993834	1992-08-13	Paper
https://portal.mardi4nfdi.de/entity/Q3983893	1992-06-27	Paper
https://portal.mardi4nfdi.de/entity/Q3977697	1992-06-25	Paper
Quadratic systems with a weak focus	1991-01-01	Paper
https://portal.mardi4nfdi.de/entity/Q3359074	1991-01-01	Paper
Study of non-existence of limit cycle around a weak focus of order two or three for quadratic systems	1990-01-01	Paper
The uniqueness of limit cycle of quadratic system \((II)_{m=0}\)	1990-01-01	Paper
Quadratic systems possessing a weak focus of order two and a singular point with a zero characteristic root	1990-01-01	Paper
https://portal.mardi4nfdi.de/entity/Q3351715	1990-01-01	Paper
https://portal.mardi4nfdi.de/entity/Q3351714	1989-01-01	Paper
https://portal.mardi4nfdi.de/entity/Q4207037	1989-01-01	Paper
https://portal.mardi4nfdi.de/entity/Q5749596	1989-01-01	Paper
https://portal.mardi4nfdi.de/entity/Q3031285	1988-01-01	Paper
https://portal.mardi4nfdi.de/entity/Q3031284	1987-01-01	Paper
https://portal.mardi4nfdi.de/entity/Q3766107	1987-01-01	Paper
Qualitative analysis on Fitzhugh's nerve conduction equation	1986-01-01	Paper

Research outcomes over time

This page was built for person: Pingguang Zhang