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   <subfield code="a">Phương pháp số đóng vai trò quan trọng và có nhiều ứng dụng trong Toán học. Các phương pháp số đã đạt được những tiến bộ to lớn trong việc tìm ra các giải pháp để giải các phương trình vi phân (ODEs). Yêu cầu đặt ra là một phương pháp số như thế nào sẽ đem lại độ chính xác cũng như tính ổn định cao khi áp dụng vào những bài toán cụ thể vì hiện nay việc giải gần đúng các phương trình, hệ phương trình vi phân và phương trình đạo hàm riêng được nhiều nhà Toán học trong và ngoài nước nghiên cứu. Trong những năm gần đây nhiều nghiên cứu cũng đã quan tâm đến việc cải tiến một số phương pháp số cổ điển nhằm tăng tính ổn định cho các phương pháp đó. Một số phương pháp có thể được kể đến đó là: Phương pháp đa bước tuyến tính, phương pháp Runge – Kutta, phương pháp Euler, phương pháp Euler cải tiến, phương pháp Taylor,… Một trong số đó là phương pháp Hermite – Birkhoff – Obrechkoff (HBO) là phương pháp cơ bản có nhiều ưu điểm và được ứng dụng rộng rãi trong việc giải Toán cũng như khi cải tiến các phương pháp cũ và xây dựng các phương pháp mới. Sau một thời gian học tập và được gợi ý của giáo viên hướng dẫn, tôi chọn đề tài: Xây dựng phương pháp Hermite – Birkhoff – Obrechkoff (HBO) dự báo hiệu chỉnh bảo toàn tính co. Mục đính chính của luận văn là tập trung nghiên cứu việc xây dựng phương pháp dự báo hiệu chỉnh HBO, xây dựng điều kiện cấp p cho phương pháp HBO, nghiên cứu các tính chất, các điều kiện thu được, sự tồn tại và tính ổn định của phương pháp HBO.</subfield>
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   <subfield code="a">Trung tâm Học liệu Trường Đại học Cần Thơ</subfield>
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