Participants and papers

PART 1. INVESTIGATING ON THE INVARIANT BASIS NUMBER PROPERTY OF LEAVITT PATH ALGEBRAS AND RELATED PROBLEMS

• Le Van An - Nguyen Thi Hai Anh, On conected component of nilpotent graph of commutative ring.

• Vo Thanh Chi, On some ideals structure of Leavitt path algebras with coefficients in unital commutative rings.

• Vũ Nhân Khánh, Tính chất số phần tử sinh không bị chặn của đại số đường đi Leavitt trên các đồ thị rời rạc chu trình.

• Lê Hoàng Mai - Ngô Tấn Phúc, Các kiểu căn Jacobson của đại số đường đi Leavitt có trọng số của đồ thị khả quy.

• Tran Le Nam - Phan Thi Hiep, Classification of $\varphi$-maximal affine translation surfaces in the Minkovski space with linear density.

• Ngo Tan Phuc, A criterion for the Leavitt path algebra of a finite graph to have invariant basis number.

• Nguyen Huu Tinh - Ngo Tan Phuc, A note on finite-dimensional weighted Leavitt path algebras and related problems.

• Nguyen Anh Tuan - Nguyen Thi Cam Tu - Nguyen Thi Mong Tuyen - Le Anh Vu, Classifying 7- imensional real solvable Lie algebras with 5-dimensional nilradicals.

• Truong Thi Thuy Van - Tran Hoai Ngoc Nhan, Some examples of set-theoretic complete intersection monomial curves in $P^n$.

• Le Hoang Mai, The $J$-radical and $J_s$-radical of Leavitt path algebras with coefficients in a commutative unital semiring.

• Vo Ngoc Thieu, Symbolic solutions for algebraic differential equations.

• Nguyen Anh Tuan - Vo Ngoc Thieu - Le Anh Vu, Testing isomorphism for Lie algebras by means of triangular decomposition.

• Le Anh Vu - Ha Van Hieu - Duong Quang Hoa - Nguyen Minh Tri, Some applications of Lie groups in theory of technical progress and estimation of the GDP function of Vietnam.

PART 2. STABILITY ANALYSIS, CONTINGENT DERIVATIVE, NORMAL AND TANGENT CONES IN CIRCULAR CONE COMPLEMENTARITY PROGRAMMING AND RELATED PROBLEMS

• Nguyen Le Hoang Anh, Second-order composed contingent derivative and its applications to set-valued optimization.

• Huynh Ngoc Cam, The BCQ for DC programming problem with convex constraints.

• Sumit Chandok, Existence of solution via Picard sequences and application to invariant approximation.

• Nguyen Thi Thanh Ly, Stability of generalzed Cauchy-Quadratic functional equations in quasi-Banach spaces.

• Nguyễn Trung Hiếu - Nguyễn Kim Ngoan, Xấp xỉ điểm bất động chung của ba ánh xạ $\alpha$-không giãn suy rộng trong không gian Banach lồi đều.

• Nguyễn Trung Hiếu - Huỳnh Thị Bé Trang, Sự hội tụ của một số dãy lặp đến điểm bất động chung cho ánh xạ $(\alpha, \beta)$-không giãn trong không gian $L_p$.

• Vo Duc Thinh, Cones generated by semi-infinite systems and their applications on optimization.

• Lê Hoàng Thảo Trang - Nguyễn Văn Dũng, Thiết lập điều kiện tồn tại nghiệm dương của hệ phương trình đại số phi tuyến.

• Lê Cẩm Tú - Võ Thị Lệ Hằng, Thiết lập điều kiện cho tính siêu ổn định suy rộng của phương trình tuyến tính tổng quát trong không gian tựa chuẩn.

• Phạm Thị Mai Thắm - Võ Thị Lệ Hằng, Về tính siêu ổn định suy rộng cho phương trình hàm Drygas.

• Wutiphol Sintunavarat, On new characterization of Banach algebras for investigation of set-valued Cauchy functional equations.

• Lam Quoc Anh - Nguyen Huu Danh - Tran Ngoc Tam, On Holder continuity of approximate solutions to parametric vector equilibrium problems and application.

• Nguyen Xuan Duy Bao - Phan Quoc Khanh - Nguyen Minh Tung, On necessary optimality conditions with higher-order complementarity slackness for set-valued optimization problems.

• Le Trung Hieu, On exponential stability in mean square of stochastic differential systems with delay.

• Nguyen Van Dung - Nguyen Bich Huy - Nguyen Trung Hieu, Two inertial hybrid iteration processes for asymptotically quasi-G-φ-nonexpansive mappings in Banach spaces with graphs.

• Nguyen Trung Hieu - Cao Pham Cam Tu, Some convergence results for G-asymptotically nonexpansive mapping in Hilbert spaces with graphs.

• Nguyen Van Lo - Le Trung Hieu, On boundedness and stability of linear time-varying differential systems of neutral type.

• Nguyen Thanh Nghia - Huynh Thi Kim Loan, Some conditions for generalized contraction of time-varying difference systems with time-varying delay.

• Le Thi Tuyet Nhi - Le Trung Hieu, On stability in mean square of stochastic difference systems.

• Vo Minh Tam, Error bounds for a class of parametric vector quasi-equilibrium problems.

• Cao Thanh Tinh, Some new scalar conditions for exponential stability of functional differential equations.

• Huynh Thanh Toan - Nguyen Minh Quan - Avner Peleg, The soliton amplitude dynamics of the perturbed nonlinear Schrodinger equation.

• Le Huynh My Van, A strong convergence theorem for solving the split variational inequality and fixed point problems.

PART 3. MATHEMATICS EDUCATION

• Joy B. Araza, Waray language medium of instruction in primary grade mathematics.

• Nguyen Van Dung, Developing the program of mathematics teacher education at Dong Thap university.

• Lora N. Gerardo - Ariel B. Mabansag, A phenomenological study on the challenges of contextualized mathematics teaching in the countryside.

• Nguyen Thi Hai Ly - Lu Ngoc Tram Anh - Nguyen Ho, Application of multivariate statistical analysis method in ecological environment research.

• Ariel B. Mabansag, Relationship of metacognition, motivation, self-concept and disposition to math proficiency: a comparative analysis of Philippines and Singapore based on pisa 2018.

• Nguyen Tien Trung - Trinh Thi Phuong Thao - Tran Trung - Hoang Ngoc Anh - Nguyen Van Thai Binh - Bui Minh Duc - Do Tung, A Bibliometric review on the field of realistic mathematics education: A case study on the Scopus database.

• Joel R. Sintos - Joy B. Araza, Effectiveness of modular Instruction on reasoning in mathematics among K to 12 first year BSS students.

• Thanatporn Bantaojai, Open approach and lesson study.

• Phan Thi Hiep, Approaching STEM education model by Scratch software to grade 4 students in the Le Van Tam primary school, Dong Thap province.

• Nguyen Duong Hoang - Tran Thuy Hoang Yen, Training professional competence for Mathematical teaching students at Dong Thap University.

• Nguyen Ho - Duong Van Khanh - Lu Ngoc Tram Anh - Nguyen Thi Phuong - Le Trung Hieu - Nguyen Thi Hai Ly, Contribution of Mathematics in Dong Thap university’s international publication: A bibliometric analysis from web of science database.

• Cynthia C. Honrales, Improving problem solving ability with Tower of Hanoi puzzle.

• Vo Xuan Mai, Intuitive thinking - a way of solving unforeseen problems in learning contexts of mathematics.

• Nguyen Thanh Nhan - Le Trung Hieu - Pham Nhat Khoa, Using calculator algorithms on Casio fx-580VN X to support solving some forms of mathematical exercises in high school.

• Nguyen Thuy Trang - Huynh Ngoc Cam, On exploiting the original problem "Simson’s theorem" in solving plane geometry problems.

• Le Thi Tuyet Trinh - Nguyen Phuong Thao, Capacity of formative assessment in mathematics education in primary schools by students: analytical results from 11 universities in Vietnam.

• Nguyen Tien Trung - Trinh Thi Phuong Thao - Nguyen Danh Nam - Pham Anh Giang - Phan Thi Tinh - Trinh Thanh Hai, An analysis of Vietnam’s mathematics textbooks in the light of realistic mathematics education and some recommendations.