http://journals.math.tku.edu.tw/index.php/TKJM/issue/feedTamkang Journal of Mathematics2017-12-01T11:35:13+08:00Editorial Officeeo-tkjm@mail2.tku.edu.twOpen Journal Systems<strong>Welcome to Tamkang Journal of Mathematics </strong><br /><br /><strong>~Hot News~ </strong><br /><br /><strong>Tamkang Journal of Mathematics(TKJM) is included in Emerging Sources Citation Index (ESCI)</strong> <br /><br /><img src="/public/site/images/admin/201709_ESCI收錄TKJM畫面.jpg" alt="" width="450" height="247" /><br /><br /><br /><strong>Aims and Scope</strong><br /><div>To promote research interactions between local and overseas researchers, the Department has been publishing an international mathematics journal, the Tamkang Journal of Mathematics. The journal started as a biannual journal in 1970 and is devoted to high-quality original research papers in pure and applied mathematics. In 1985 it has become a quarterly journal.</div>http://journals.math.tku.edu.tw/index.php/TKJM/article/view/2237Regular clique assemblies, configurations, and friendship in Edge-Regular graphs2017-12-01T11:35:12+08:00Kelly B. Guestkbraganguest@gmail.comJames M. Hammerjmhammer@cedarcrest.eduPeter D. Johnsonjohnspd@auburn.eduKenneth J. Robleekroblee@troy.eduAn edge-regular graph is a regular graph in which, for some $\lambda$, any two adjacent vertices have exactly $\lambda$ common neighbors. This paper is about the existence and structure of edge-regular graphs with $\lambda =1$ and about edge-regular graphs with $\lambda >1$ which have local neighborhood structure analogous to that of the edge-regular graphs with $\lambda =1$.2017-12-30T00:00:00+08:00http://journals.math.tku.edu.tw/index.php/TKJM/article/view/2406Tauberian theorems for statistical convergence2017-12-01T11:35:12+08:00Erdal Gulegul34@gmail.comMehmet Albayrakmehmetalbayrak12@gmail.comThe Tauberian theorems for statistical limitable method are proved by both Fridy and Khan \cite{3} and M\'oricz \cite{28}. Here we generalize these theorems to (C; i) statistical limitable method.2017-12-30T00:00:00+08:00http://journals.math.tku.edu.tw/index.php/TKJM/article/view/2415Fixed point theorem for generalized set-valued contractions on partial metric space2017-12-01T11:35:13+08:00MANSOUR Abdelouahabamansour@math.univ-lyon1.frDjedidi Mostaphadjedidim@yahoo.frNachi Khadranachikh@gmail.comIn this paper, we give a new version of Ekeland’s variational<br />principle on partial metric space. Using this variational principle,<br />we establich a general result on the existence of a fixed point for a<br />class of genralized set-valued contractions on partiel metric space.2017-12-30T00:00:00+08:00http://journals.math.tku.edu.tw/index.php/TKJM/article/view/2460Well-posedness for generalized variational-hemivariational inequalities with perturbations in reflexive banach spaces2017-12-01T11:35:13+08:00Lu-Chuan Cengzenglc@hotmail.comYung-Yih Luryylur@vnu.edu.twChing-Feng Wencfwen@kmu.edu.twIn this paper, we consider an extension of well-posedness for a minimization problem to a class of generalized variational-hemivariational inequalities with perturbations in reflexive Banach spaces. We establish some metric characterizations for the $\alpha$-well-posed generalized variational-hemivariational inequality and give some conditions under which the generalized variational-hemivariational inequality is strongly $\alpha$-well-posed in the generalized sense. Under some mild conditions, we also prove the equivalence between the $\alpha$-well-posedness of the generalized variational-hemivariational inequality and the $\alpha$-well-posedness of the corresponding inclusion problem.2017-12-30T00:00:00+08:00http://journals.math.tku.edu.tw/index.php/TKJM/article/view/2481On solutions of some non-linear differential equations in connection to Bruck Conjecture2017-12-01T11:35:13+08:00Dilip Candra Pamanikdcpramanik.nbu2012@gmail.comManab Biswasmanab_bisaws83@yahoo.comIn this paper, we investigate on the non-constant entire solutions of some non-linear complex differential equations in connection to Br\"{u}ck conjecture and prove some results which improve and extend the results of Xu and Yang\bf{[Xu HY, Yang LZ. On a conjecture of R. Br\"{u}ck and some linear differential equations. Springer Plus 2015; 4:748,:1-10, DOI 10.1186/s40064-015-1530-5.]}2017-12-30T00:00:00+08:00http://journals.math.tku.edu.tw/index.php/TKJM/article/view/2492Inverse problems for differential operators with nonseparated boundary conditions in the central symmetric case2017-12-01T11:35:13+08:00Vjacheslav Yurkoyurkova@info.sgu.ruInverse spectral problems for Sturm-Liouville operators on a finite interval with non-separated boundary conditions are studied in the central symmetric case, when the potential is symmetric with respect to the middle of the interval. We discuss statements of the problems, provide algorithms for their solutions along with necessary and sufficient conditions for the solvability of the inverse problems considered.2017-12-30T00:00:00+08:00