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Solvability of multipoint BVPs at resonance for various kernels
1. INTRODUCTION In the theory of partial differential equations such as the method of separation of variables, we encounter differential equations for several parameters with some requirement of solutions which is called multi-point boundary condition. This then leads to an extensive development of spectral theory with multi-parameter [1]. Many...
14 trang | Chia sẻ: thanhle95 | Ngày: 14/07/2021 | Lượt xem: 479 | Lượt tải: 0
Periodic solutions to a class of differential variational inequalities in banach spaces
Abstract. In this work, we consider a model formulated by a dynamical system and an elliptic variational inequality. We prove the solvability of initial value and periodic problems. Finally, an illustrative example is given to show the applicability of our results. Keywords: Elliptic variational inequalities, periodic solution, fixed point theo...
14 trang | Chia sẻ: thanhle95 | Ngày: 14/07/2021 | Lượt xem: 486 | Lượt tải: 0
A note on stable solutions of a sub-elliptic system with singular nonlinearity
In this decade, much attention has been paid to study the elliptic equations and elliptic systems involving degenerate operators such as the Grushin operator [13-18], the ∆λ- Laplacian [3-7] and references given there. Remark that the Grushin operator is a typical example of ∆λ-Laplacian, see [1] for further properties of the operator ∆λ. As fa...
11 trang | Chia sẻ: thanhle95 | Ngày: 14/07/2021 | Lượt xem: 454 | Lượt tải: 0
The generalized convolution for h-Laplace transform on time scale
1. Introduction The Laplace transform theory has been studied from the 17th century. The Fourier transform has been studied from the 19th century together with the Fourier cosine, Fourier sine transforms and convolution of two functions for Fourier transform. The Laplace transform, the Fourier transform, Fourier cosine and Fourier sine transfor...
19 trang | Chia sẻ: thanhle95 | Ngày: 14/07/2021 | Lượt xem: 482 | Lượt tải: 0
Ultimate stability of nonlinear time-varying systems with multiple delays
Abstract. The ultimate stability of nonlinear time-varying systems with multiple delays and bounded disturbances are investigated in this paper. Based on some comparison techniques via differential inequalities, explicit delay-independent conditions are derived for determining an ultimate bound such that all state trajectories of the system con...
14 trang | Chia sẻ: thanhle95 | Ngày: 14/07/2021 | Lượt xem: 409 | Lượt tải: 0
Training pre-service teacher competence to integrate interdisciplinary knowledge to solve problems in practice through the integrated topic in general physics module
Abstract. In higher education, it is essential to change teaching method toward the learnercentered orientation. Teaching through topics with practical content is one of the preferred options today. Problems in real-life contain complex elements that are almost impossible to explain by just one subject. The paper presents the method of organizing...
11 trang | Chia sẻ: thanhle95 | Ngày: 14/07/2021 | Lượt xem: 445 | Lượt tải: 0
Experiences of improving mathematical communication competence for Vietnamese secondary school through theme “Solving problem by setting up system of equations”
Abstract. This paper aims to discuss our experiences of promoting mathematical communication competence for students at secondary school in Vietnam. In this research, we applied the qualitative research that consists of the designed experiment and the participant’s observation method. From result experiment, we show out detail about Vietnamese ...
13 trang | Chia sẻ: thanhle95 | Ngày: 14/07/2021 | Lượt xem: 468 | Lượt tải: 0
Improving expression ability of diferent language forms for elementary students through mathematics problem-Solving instruction
1. Introduction Language is the reflection of thinking, the development of language for students, especially for elementary students, on that basis, it will contribute to their thinking development. At elementary level, students receive basic scientific knowledge through exploring the world. Thus, language plays a major role in conveying knowle...
7 trang | Chia sẻ: thanhle95 | Ngày: 14/07/2021 | Lượt xem: 459 | Lượt tải: 0
Mathematical modelling from the cognitive point of view, the transition from implicit model to explicit model
Abstract. Thecognitive aspect of mathematical modeling competencehas been of interest in the mathematics education community. From the cognitive point of view, the individual's behavior and problem-solving abilities have a strong connection with the inner cognitive activities. We will present BorromeoFerri’s diagram of cognitive mathematical mod...
9 trang | Chia sẻ: thanhle95 | Ngày: 14/07/2021 | Lượt xem: 484 | Lượt tải: 0
Giải thích nguyên nhân sai lầm của học sinh khi học chủ đề phép chia hết dưới ngôn ngữ của Didactic toán
TÓM TẮT Trong dạy học Toán, một trong những nhiệm vụ quan trọng của giáo viên là giúp học sinh phát hiện ra và khắc phục các sai lầm mắc phải. Từ đó, HS được tạo cơ hội để phát triển tư duy, củng cố kiến thức, kĩ năng. Sai lầm của HS biểu hiện rất đa dạng và do nhiều nguyên nhân khác nhau. Trong nghiên cứu này, chúng tôi sử dụng hai mô hình để ...
9 trang | Chia sẻ: thanhle95 | Ngày: 14/07/2021 | Lượt xem: 727 | Lượt tải: 0

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