Ph.D. Professor, Ph.D. Graduate Supervisor
Department of Mathematical
Xian, 710127, China
Education and Experiences
Nove.2005-Present，Ph.D. Graduate Supervisor in Department of Mathematics at Northwest University.
Nove.2001-Present, Professor in Department of Mathematics at Northwest University.
July.1997-July.1999, Ph.D. student in Department of Mathematics Education at Gyeongsang National University.
July.1985-July.1988, Graduate. student in Department of Mathematics at Northwest University.
Sept.1978-Jul.1982, UnderGraduate student at Department of Mathematics at Northwest University.
Logic Algebra; Sequence Algebra; Fuzzy Algebra and Fuzzy Information Theory; Information Security and Cryptography
Advanced Algebra, Abstract Algebra, Information Theory, Coding Theory, Information Security and Cryptography, Fuzzy algebra
Research Grants and Projects
1.Principal Investigator: The theory and application of hyperstructure on fuzzy algebra, Ministry of Education, China, 2000.
2.Principal Investigator: The theory and application of hyperstructure on order algebra, Natural Science Foundation of Shaanxi Province,2001.
3.Principal Investigator: Algebraic geometric codes and information security technology, Natural Science Special Fund of Education Department of Shaanxi Province,2003.
4.Principal Investigator: The study on applications of algebraic geometry codes and passwords, Natural Science Foundation of Shaanxi Province,2004.
5.Principal Investigator: The study on applications of differential systems, hyperalgebraic systems and fuzzy systems on lattices, Natural Science Foundation of Shaanxi Province,2007.
6.Principal Investigator: The study on applications of lattice theory in information science, Specialized Research Fund of Education Department of Shaanxi Province,2008.
Honors and Awards (selected)
1. 1994, the First Prize of Science and Technology Progress, the Education Committee of Shaanxi Province.
2. 2009, the First Prize of Science and Technology, Colleges and Universities of Shaanxi Province.
3. 2011, Outstanding Party Member, Colleges and Universities of Shaanxi Province.
4.2007, the Second Prize of Outstanding Teaching Achievement，the Government of Shaanxi Province.
Textbooks and Monographs
1. Information Science Foundation, editor, Northwestern University Press, published in 2006.
2. Advanced Mathematics, editor, Higher Education Press, published in 2007.
3. Linear Algebra, editor, Higher Education Press, published in 2007.
4. Probability Theory and Mathematical Statistics, editor, Higher Education Press, published in 2007.
Main Publications (selected)
1. Wei Wang, Xiao Long Xin, On fuzzy filters of pseudo BL-algebras,Fuzzy Sets and Systems , 162 (2011) 27–38.
2. Xiu Juan Hua, Xiao Long Xin, Generalized (convex) fuzzy sublattices, Computers and Mathematics with Applications, 62 (2011) 699–708.
3. Wei Ji, Xiao Long Xin, The spectrum of a finite pseudo-complemented modular lattice, Algebra Univers., 65 (2011) 305–313.
4. Wei Ji, Xiao Long Xin, Torsion elements in effect algebras, Soft Comput .
5. Peng Fei He, XiaoLong Xin, Fuzzy hyperlattices, Computers and Mathema-
tics with Applications 62 (2011) 699–708.
6. Xiao Long Xin, Wei Ji, and Xiu Juan Hua, Fuzzy Filter Spectrum of a BCK Algebra, International Journal of Mathematics and Mathematical Sciences, 2011, Article ID 795934, (doi:10.1155/2011/795934).
7. Wei Wang, Xiao Long Xin, On fuzzy filters of Heyting-algebras, Discrete and Continuous Dynamical Systems, 4(2011)1611–1619.
8. Xiao Long Xin, Ti Yao Li , Jing Hua Lu,On derivations of lattice, Inform-
ation Sciences, 178 (2008) 307-316.
9. WeiQiong Wang , XiaoLong Xin, Distance measure between intuitionistic fuzzy sets，Pattern Recognition Letters, 26 (2005) 2063-2069.
10. Young Bae Jun , Xiao Long Xin, On derivations of BCI-algebras, Infor-
mation Sciences, 159 (2004) 167-176.
11. Young Bae Jun , Xiao Long Xin, Involutory and invertible fuzzy BCK
-algebras, Fuzzy Sets and System,117( 2001)463-469.
12. Young Bae Jun , Xiao Long Xin, Fuzzy prime and invertible fuzzy ideals in BCK-algebras, Fuzzy Sets and Systems, 117 (2001) 471-476.
13. Young Bae Jun , Xiao Long Xin, On a hyperBCK-algebra that satisfies the hypercondition, Math. Japonica, 1(2000)95-101.
14. Young Bae Jun , Xiao Long Xin, Strong hyperBCK-ideals of hyper BCK
-algebras, Math. Japon., 3 (2000)493-498.
15．Xiao Long Xin, On the equivalent condition of the involutory BCK
-algebras , Scientia Mathematicae Japonicae, 55 (2002)265-269.
Teaching and Learning Project
1.Principal Investigator: the exploration of improving teaching effectiv-eness and teaching reform of university mathematics，the second batch of the quality of teaching at Northwestern University project，2008.
2. Principal Investigator: the construction of mathematical modeling course， Course Construction Project in Shaanxi Province，2005.