NECESSARY AND SUFFICIENT CONDITIONS OF A PLANE QUARTIC SYSTEM WITH DULAC＇S CENTER

ＮＥＣＥＳＳＡＲＹＡＮＤＳＵＦＦＩＣＩＥＮＴＣＯＮＤＩＴＩＯＮＳＯＦＡＰＬＡＮＥ　ＱＵＡＲＴＩＣＳＹＳＴＥＭＷＩＴＨＤＵＬＡＣ＇ＳＣＥＮＴＥＲＬｉＸｕｅｍｉｎ（李学敏）（ＳｈａｎｄｏｎｇＮｏｒｍａｌＵｎｉｖｅｒｓｉｔｙ，山东师范大学，邮编：２５００１...     

COMPERISON THEOREMS AND SUFFICIENT AND NECESSARY CONDITION FOR OSCILLATION OF FIRST ORDER NEUTRAL NONLINEAR DIFFERENTIAL EQUATIONS

ＣＯＭＰＥＲＩＳＯＮＴＨＥＯＲＥＭＳＡＮＤＳＵＦＦＩＣＩＥＮＴＡＮＤＮＥＣＥＳＳＡＲＹＣＯＮＤＩＴＩＯＮＦＯＲＯＳＣＩＬＬＡＴＩＯＮＯＦＦＩＲＳＴＯＲＤＥＲ　ＮＥＵＴＲＡＬＮＯＮＬＩＮＥＡＲＤＩＦＦＥＲＥＮＴＩＡＬＥＱＵＡＴＩＯＮＳＬｉＷａｎｔｏｎｇ...     

FEASIBILITY OF THE REICH PROCEDURE IN THE DECOMPOSITION OF PLANE QUASICONFORMAL MAPPINGS

ＦＥＡＳＩＢＩＬＩＴＹＯＦＴＨＥＲＥＩＣＨＰＲＯＣＥＤＵＲＥＩＮＴＨＥＤＥＣＯＭＰＯＳＩＴＩＯＮＯＦＰＬＡＮＥＱＵＡＳＩＣＯＮＦＯＲＭＡＬＭＡＰＰＩＮＧＳ￥ＬＡＩＷＡＮＣＡＩ（ＤｅｐａｒｔｍｅｎｔｏｆＡｐｐｌｉｅｄＭａｔｈｅｍａｔｉｃｓ，ＨｕａＱｉａ...     

WIDE SENSE STABILITY OF COMPLEX SYSTEMS OF DIFFERENTIAL EQUATIONS OF ARBITRARY DIMENSION

ＷＩＤＥＳＥＮＳＥＳＴＡＢＩＬＩＴＹＯＦＣＯＭＰＬＥＸＳＹＳＴＥＭＳＯＦＤＩＦＦＥＲＥＮＴＩＡＬＥＱＵＡＴＩＯＮＳＯＦＡＲＢＩＴＲＡＲＹＤＩＭＥＮＳＩＯＮ￥ＺＩＡＤＺＡＨＲＥＤＤＩＮＥＡｂｓｔｒａｃｔ：ＩｔｉｓｓｈｏｗｎｈｏｗｔｈｅｅｘｔｅｎｄｅｄＲ...     

OSCILLATORY AND ASYMPTOTIC BEHAVIOR OF FIRST ORDER FUNCTIONAL DIFFERENTIAL EQUATION WITH PIECEWISE CONSTANT DELAY

ＯＳＣＩＬＬＡＴＯＲＹＡＮＤＡＳＹＭＰＴＯＴＩＣＢＥＨＡＶＩＯＲＯＦＦＩＲＳＴＯＲＤＥＲＦＵＮＣＴＩＯＮＡＬＤＩＦＦＥＲＥＮＴＩＡＬＥＱＵＡＴＩＯＮＷＩＴＨＰＩＥＣＥＷＩＳＥＣＯＮＳＴＡＮＴＤＥＬＡＹＦｅｎｇＹｕｅｃａｉ(冯月才）（ＳｏｕｔｈＣｈｉｎ?..     

A NECESSARY AND SUFFICIENT CONDITION OF EXISTENCE OF GLOBAL SOLUTIONS FOR SOME NONLINEAR HYPERBOLIC EQUATIONS

ＡＮＥＣＥＳＳＡＲＹＡＮＤＳＵＦＦＩＣＩＥＮＴＣＯＮＤＩＴＩＯＮＯＦＥＸＩＳＴＥＮＣＥＯＦＧＬＯＢＡＬＳＯＬＵＴＩＯＮＳＦＯＲＳＯＭＥＮＯＮＬＩＮＥＡＲＨＹＰＥＲＢＯＬＩＣＥＱＵＡＴＩＯＮＳ￥ＺＨＡＮＧＱＵＡＮＤＥ（ＤｅｐａｒｔｍｅｎｔｏｆＭａｔｈｅ...     

ASYMPTOTIC BEHAVIOR OF NONOSCILLATORY SOLUTIONS OF A SECOND ORDER FUNCTIONAL DIFFERENTIAL EQUATIONS

ＡＳＹＭＰＴＯＴＩＣＢＥＨＡＶＩＯＲＯＦＮＯＮＯＳＣＩＬＬＡＴＯＲＹＳＯＬＵＴＩＯＮＳＯＦＡＳＥＣＯＮＤＯＲＤＥＲＦＵＮＣＴＩＯＮＡＬＤＩＦＦＥＲＥＮＴＩＡＬＥＱＵＡＴＩＯＮＳ（孟繁伟）曲阜师范大学，邮编：２７３１６５ＭｅｎｇＦａｎｗｅｉ（ＱｕｆｕＮ...     

A NOTE ON THE COMPLEX OSCILLATION OF NONHOMOGENEOUS LINEAR DIFFERENTIAL EQUATIONS WITH TRANSCENDENTAL ENTIRE COEFFICIENTS

ＡＮＯＴＥＯＮＴＨＥＣＯＭＰＬＥＸＯＳＣＩＬＬＡＴＩＯＮＯＦＮＯＮＨＯＭＯＧＥＮＥＯＵＳＬＩＮＥＡＲＤＩＦＦＥＲＥＮＴＩＡＬＥＱＵＡＴＩＯＮＳＷＩＴＨＴＲＡＮＳＣＥＮＤＥＮＴＡＬＥＮＴＩＲＥＣＯＥＦＦＩＣＩＥＮＴＳＧａｏＳｈｉａｎ；＆ＷａｎｇＳｈｅｎ...     

PERIODIC BOUNDARY VALUE PROBLEMS OF A CLASS QUASILINEAR ORDINARY DIFFERENTIAL EQUATIONS

ＰＥＲＩＯＤＩＣＢＯＵＮＤＡＲＹＶＡＬＵＥＰＲＯＢＬＥＭＳＯＦＡＣＬＡＳＳＱＵＡＳＩＬＩＮＥＡＲＯＲＤＩＮＡＲＹＤＩＦＦＥＲＥＮＴＩＡＬＥＱＵＡＴＩＯＮＳ杨作东河南师范大学，邮编：４５３００２ＰＥＲＩＯＤＩＣＢＯＵＮＤＡＲＹＶＡＬＵＥＰＲＯＢＬＥＭＳ...     

关于双重时序AR－MA模型存在平稳解的充要条件

关于双重时序ＡＲ－ＭＡ模型存在平稳解的充要条件卢祖帝（中国科学院系统科学研究所，北京１０００８０）ＯＮＴＨＥＮＥＣＥＳＳＡＲＹＡＮＤＳＵＦＦＩＣＩＥＮＴＣＯＮＤＩＴＩＯＮＳＦＯＲＴＨＥＥＸＩＳＴＥＮＣＥＯＦＳＴＡＴＩＯＮＡＲＹＳＯＬＵＴＩＯＮＳＴＯＴ...     

ON THE FUNDAMENTAL PROBLEM FOR AN INFINITE ELASTIC PLANE BONDED BY DIFFERENT ANISOTROPIC MATERIALS WITH CRACKS

ＯＮＴＨＥＦＵＮＤＡＭＥＮＴＡＬＰＲＯＢＬＥＭＦＯＲＡＮＩＮＦＩＮＩＴＥＥＬＡＳＴＩＣＰＬＡＮＥＢＯＮＤＥＤＢＹＤＩＦＦＥＲＥＮＴＡＮＩＳＯＴＲＯＰＩＣＭＡＴＥＲＩＡＬＳＷＩＴＨＣＲＡＣＫＳＺＨＥＮＧＫＥ（ＤｅｐａｒｔｍｅｎｔｏｆＭａｔｈｅｍａｔｉｃ...     

A SUFFICIENT CONDITION FOR NON－COEXISTENCE OF ONE DIMENSIONAL MULTICOLOR CONTACT PROCESSES

ＡＳＵＦＦＩＣＩＥＮＴＣＯＮＤＩＴＩＯＮＦＯＲＮＯＮ－ＣＯＥＸＩＳＴＥＮＣＥＯＦＯＮＥＤＩＭＥＮＳＩＯＮＡＬＭＵＬＴＩＣＯＬＯＲＣＯＮＴＡＣＴＰＲＯＣＥＳＳＥＳＬＩＵＸＩＵＦＡＮＧ（刘秀芳）ＷＡＮＧＪＵＮ（王军）（ＤｅｐａｒｔｍｅｎｔｏｆＭａｔｈｅｍ...     

ON SOME DISCRETE INEQUALITIES USEFUL IN THE THEORY OF CERTAINPARTIAL FINITE DIFFERENCE EQUATIONS

ＯＮＳＯＭＥＤＩＳＣＲＥＴＥＩＮＥＱＵＡＬＩＴＩＥＳＵＳＥＦＵＬＩＮＴＨＥＴＨＥＯＲＹＯＦＣＥＲＴＡＩＮＰＡＲＴＩＡＬＦＩＮＩＴＥＤＩＦＦＥＲＥＮＣＥＥＱＵＡＴＩＯＮＳＢ．Ｇ．Ｐａｃｈｐａｔｔｅ（ＭａｒａｔｈｗａｄａＵｎｉｖｅｒｓｉｔｙ，Ａｕｒａｎｇ...     

ON NECESSARY AND SUFFICIENT CONDITIONS FOR DUALS OF WAVELET FRAMES

（张泽银）（王建忠）ＯＮＮＥＣＥＳＳＡＲＹＡＮＤＳＵＦＦＩＣＩＥＮＴＣＯＮＤＩＴＩＯＮＳＦＯＲＤＵＡＬＳＯＦＷＡＶＥＬＥＴＦＲＡＭＥＳ￥ＺｈａｎｇＺｅｙｉｎ（Ｄｅｐｔ．ｏｆＭａｔｈ．，ＨｕｂａｉＵｎｉｖｅｒｓｉｔｙ，Ｗｕｈａｎ４３００６２，Ｃｈｉｎａ...     

MIXED BOUNDARY VALUE PROBLEM FOR SECOND－ORDER SYSTEM OF DIFFERENTIAL EQUATIONS OF THE ELLIPTIC TYPE

（陈庆祥）ＭＩＸＥＤＢＯＵＮＤＡＲＹＶＡＬＵＥＰＲＯＢＬＥＭＦＯＲＳＥＣＯＮＤ－ＯＲＤＥＲＳＹＳＴＥＭＯＦＤＩＦＦＥＲＥＮＴＩＡＬＥＱＵＡＴＩＯＮＳＯＦＴＨＥＥＬＬＩＰＴＩＣＴＹＰＥ￥ＣｈｅｎＱｉｎｇｘｉａｎｇ（Ｄｅｐｔ．ｏｆＭａｔｈ．，Ｚｈｏｎｇｓ...     

STABILITY OF SOLUTIONS OF FIRST ORDER NONLINEAR NEUTRAL DIFFERENTIAL EQUATIONS WITH OSCILLATORY COEFFICIENTS

ＳＴＡＢＩＬＩＴＹＯＦＳＯＬＵＴＩＯＮＳＯＦＦＩＲＳＴＯＲＤＥＲＮＯＮＬＩＮＥＡＲＮＥＵＴＲＡＬＤＩＦＦＥＲＥＮＴＩＡＬＥＱＵＡＴＩＯＮＳＷＩＴＨＯＳＣＩＬＬＡＴＯＲＹＣＯＥＦＦＩＣＩＥＮＴＳ￥ＷａｎｇＱｉｒｕ(王其如）（ＬｕｏｙａｎｇＴｅａｃｈｅｒ?..     

STATIONARY OSCILLATIONS OF SECOND ORDER PERIODIC SYSTEMS UNDER STOCHASTIC NOISE INTERFERENCE

ＳＴＡＴＩＯＮＡＲＹＯＳＣＩＬＬＡＴＩＯＮＳＯＦＳＥＣＯＮＤＯＲＤＥＲＰＥＲＩＯＤＩＣＳＹＳＴＥＭＳＵＮＤＥＲＳＴＯＣＨＡＳＴＩＣＮＯＩＳＥＩＮＴＥＲＦＥＲＥＮＣＥ￥ＤｅｎｇＦｅｉｑｉ（ＮｏｒｔｈｅａｓｔＩｎｓｔｉｔｕｔｅｏｆＨｅａｖｙＭａｃｈｉｎｅ...     

A COMPLETE METRIC OF POSITIVE CURVATURE ON R~n AND EXISTENCE OF CLOSED GEODESICS

ＡＣＯＭＰＬＥＴＥＭＥＴＲＩＣＯＦＰＯＳＩＴＩＶＥＣＵＲＶＡＴＵＲＥＯＮＲ~ｎＡＮＤＥＸＩＳＴＥＮＣＥＯＦＣＬＯＳＥＤＧＥＯＤＥＳＩＣＳ￥ＺＨＵＤＡＸＩＮ（ＤｅｐａｒｔｍｅｎｔｏｆＭａｔｈｅｍａｔｉｃｓ，ＴｉａｎｊｉｎＵｎｉｖｅｒｓｉｔｙｌＴｉａｎｊ?..     

A NEW APPROACH TO STABILITY THEORY OF FUNCTIONAL DIFFERENTIAL EQUATIONS

Ａ　ＮＥＷ　ＡＰＰＲＯＡＣＨ　ＴＯ　ＳＴＡＢＩＬＩＴＹ　ＴＨＥＯＲＹ　ＯＦ　ＦＵＮＣＴＩＯＮＡＬ　ＤＩＦＦＥＲＥＮＴＩＡＬ　ＥＱＵＡＴＩＯＮＳＡＮＥＷＡＰＰＲＯＡＣＨＴＯＳＴＡＢＩＬＩＴＹＴＨＥＯＲＹＯＦＦＵＮＣＴＩＯＮＡＬＤＩＦＦＥＲＥＮＴＩＡＬＥ...     

THE ZERO AND ORDER OF SOME SECOND ORDER LINEAR DIFFERENTIAL EQUATIONS WITH TRANSCENDENTAL MEROMORPHIC COEFFICIENTS

ＴＨＥＺＥＲＯＡＮＤＯＲＤＥＲＯＦＳＯＭＥＳＥＣＯＮＤＯＲＤＥＲＬＩＮＥＡＲＤＩＦＦＥＲＥＮＴＩＡＬＥＱＵＡＴＩＯＮＳＷＩＴＨＴＲＡＮＳＣＥＮＤＥＮＴＡＬＭＥＲＯＭＯＲＰＨＩＣＣＯＥＦＦＩＣＩＥＮＴＳＣＨＥＮＺＯＮＧＸＵＡＮＡｂｓｔｒａｃｔ：Ｉｎｔｈ...