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| 1 | Kamenev-type criteria for nonlinear damped dynamic equations显示文摘We establish a new Kamenev-type theorem for a class of second-order nonlinear damped delay dynamic equations on a time scale by using the generalized Riccati transformation technique. The criterion obtained improves related contributions to the subject. An example is provided to illustrate assumptions in our theorem are less restrictive. | BOHNER Martin LI TongXing | 2015 | Science China Mathematics2015，58，7： | 13 |
| 2 | Transmission eigenvalue problem for inhomogeneous absorbing media with mixed boundary condition显示文摘Consider the transmission eigenvalue problem for the wave scattering by a dielectric inhomogeneous absorbing obstacle lying on a perfect conducting surface. After excluding the purely imaginary transmission eigenvalues, we prove that the transmission eigenvalues exist and form a discrete set for inhomogeneous nonabsorbing media, by using analytic Fredholm theory. Moreover, we derive the Faber-Krahn type inequalities revealing the lower bounds on real transmission eigenvalues in terms of the media parameters. Then, for inhomogeneous media with small absorption, we prove that the transmission eigenvalues also exist and form a discrete set by using perturbation theory. Finally, for homogeneous media, we present possible components of the eigenvalue-free zone quantitatively, giving the geometric understanding on this problem. | LI TongXing LIU JiJun | 2016 | Science China Mathematics2016，59，6： | 2 |
| 3 | Oscillation criteria of second-order nonlinear neutral delay dynamic e-quations on time scales显示文摘 | Li Tongxing Han Zhenlai | 2008 | Proceeding of the6 th Conference of Biomathematics Taian2008，，： | 1 |
| 4 | Some oscillation results for second-order neutral differential equations显示文摘 | LI Tongxing AGARWAL R P BOHNER M | 2012 | The Journal of the Indian Mathematical Society2012，79，14： | 1 |
| 5 | Some oscillation results for second-order neutral dynamic equations显示文摘 | LI Tongxing AGARWAL R P BOHNER M | 2012 | Hacettepe Journal of Mathematics and Statistics2012，41，5： | 1 |
| 6 | Oscillation of second-order neutral differential equations显示文摘 | LI Tongxing ROGOVCHENKO Y V ZHANG Chenghui | 2013 | Funkcialaj Ekvacioj2013，56，1： | 1 |
| 7 | Oscillation of second-order Emden-Fowler neutral delay differential equations显示文摘 | AGARWAL R P BOHNER M LI Tongxing | 2014 | Annali di Matematica Pura ed Applicata2014，193，6： | 1 |
| 8 | A new approach in the study of oscillatory behavior of even-order neutral delay differential equations显示文摘 | AGARWAL R P BOHNER M LI Tongxing | 2013 | Appl Math Comput2013，225，： | 1 |
| 9 | On oscillation of second-order nonlinear neutral functional differential equations显示文摘 | SUN Shurong LI Tongxing HAN Zhenlai | 2013 | Bulletin of the Malaysian Mathematical Society2013，36，3： | 1 |
| 10 | Oscillation of second-order nonlinear differential equations with damping显示文摘 | LI Tongxing ROGOVCHENKO Y V TANG S | 2014 | Mathematica Slovaca2014，64，5： | 1 |
| 11 | On the oscillation of second-order neutral delay dynamic equa- tions on time scales 显示文摘 | Han Zhenlai Li Tongxing Sun Shurong | 2010 | African Diaspora Journal of Mathematics2010，9，1： | 1 |
| 12 | Oscillation of second order quasilinear neutral delay differential equations 显示文摘 | Han Zhenlai Li Tongxing Sun Shurong | 2012 | J Appl Math Comput2012，，： | 1 |
| 13 | Oscillation criteria for second-order nonlinear neu- tral delay differential equations 显示文摘 | Han Zhenlai Li Tongxing Sun Shurong | 2010 | Advances in Difference Equations2010，2010，763278： | 1 |
| 14 | Oscillation for second-order nonlinear delay dynamic equations on time scales显示文摘 | HAN Zhenlai LI Tongxing SUN Shurong | 2009 | Adv Diff Equ2009，，1： | 1 |
| 15 | Existence of nonoscillatory solutions to second-order neutral delay dynamic equations on time scales显示文摘 | LI Tongxing HAN Zhenlai SUN Shurong | 2009 | Adv Diff Equ2009，，1： | 1 |
| 16 | Adsorption of Cu(n) by biochars generated from three crop straws 显示文摘 | TongX J Li J Y Yuan J H | 2011 | Chemical Engineering Journal2011，172，23： | 1 |
| 17 | Phanerozoic Paleomagnetism Characteristics of the Qomolangma Area in Tibet显示文摘This paper conducts systematic test research on the 2920 paleomagnetic directional samples taken from Ordovician-Paleogene sedimentary formation in the north slope of Qomolangma in south of Tibet and obtains the primary remanent magnetization component and counts the new data of paleomagnetism the times. Based on the characteristic remanent magnetization component, it calculates the geomagnetic pole position and latitude value of Himalaya block in Ordovician-Paleogene. According to the new data of paleomagnetism, it draws the palaeomagnetic polar wander curve and palaeolatitude change curve of the north slope of Qomolangma in Ordovician-Paleogene. It also makes a preliminary discussion to the structure evolution history and relative movement of Himalaya bloc. The research results show that many clockwise rotation movements had occurred to the Himalaya block in northern slope of Qomolangmain the process of northward drifting in the phanerozoic eon. In Ordovician-late Cretaceous, there the movement of about 20.0° clockwise rotation occurred in the process of northward drifting. However, 0.4° counterclockwise rotation occurred from the end of late Devonian epoch to the beginning of early carboniferous epoch; 6.0° and 8.0° counterclockwise rotation occurred in carboniferous period and early Triassic epoch respectively, which might be related with the tension crack of continental rift valley from late Devonian period to the beginning of early carboniferous epoch, carboniferous period and early Triassic epoch. From the Eocene epoch to Pliocene epoch, the Himalaya block generated about 28.0° clockwise while drifting northward with a relatively rapid speed. This was the result that since the Eocene epoch, due to the continuous expansion of mid-ocean ridge of the India Ocean, the neo-Tethys with the Yarlung Zangbo River as the main ocean basin closed to form orogenic movement and the strong continent-continent collision orogenic movement of the east and west Himalayas generated clockwise movement in the mid-Himalaya area. According to the calculation of palaeolatitude data, the Himalaya continent-continent collusion orogenic movement since the Eocene epoch caused the crustal structure in Indian Plate-Himalaya folded structural belt-Lhasa block to shorten by at least 1000 km. The systematic research on the paleomagnetism of Qomolangma area in the phanerozoic eon provides a scientific basis to further research the evolution of Gondwanaland, formation and extinction history of paleo-Tethys Ocean and uplift mechanism of the Qinghai-Tibet Plateau. | ZOU Guangfu PAN Zhongxi ZHUANG Zhonghai ZHU Tongxing LI Jianzhong FENG Xintao | 2013 | Acta Geologica Sinica(English Edition)2013，87，2： | 1 |
| 18 | Remarks on the paper [Appl. Math. Comput. 207 (2009) 388–396]显示文摘 | Zhenlai Han Tongxing Li Shurong Sun Yibing Sun | 2009 | Applied Mathematics and Computation2009，，11： | 1 |
| 19 | Oscillation for second order nonlinear delay dynamic equations on time scales显示文摘 | HAN Zhenlai LI Tongxing SUN Shurong | 2009 | Adv Diff Equ2009，，1： | 1 |
| 20 | On the oscillation of second-order neutral delay dynamic equations on time scales显示文摘 | HAN Zhenlai LI Tongxing SUN Shurong | 2010 | Afr Diaspora J Math2010，9，1： | 1 |
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