Spanning sets

Bài giảng "Toán cao cấp - Chương 3: Không gian vectơ" cung cấp cho người học các kiến thức: Subspaces of Rn, spanning sets, independence, bases of vector spaces, column space and row space of a matrix, dimensions. Mời các bạn cung tham khảo nội dung chi tiết.

18p abcxyz123_08 11-04-2020 118 6   Download

Dedicated to Yum-Tong Siu for his 60th birthday. Abstract Let {X1 , . . . , Xp } be complex-valued vector fields in Rn and assume that they satisfy the bracket condition (i.e. that their Lie algebra spans all vector fields). Our object is to study the operator E = Xi∗ Xi , where Xi∗ is the L2 adjoint of Xi . A result of H¨rmander is that when the Xi are real then E is o hypoelliptic and furthemore it is subelliptic (the restriction of a destribution u to an open set U is “smoother” then the restriction...

45p noel_noel 17-01-2013 49 7   Download

Tuyển tập các báo cáo nghiên cứu khoa học về toán học trên tạp chí toán học quốc tế đề tài: A graph-theoretic method for choosing a spanning set for a finite-dimensional vector space, with applications to the Grossman-Larson-Wright module and the Jacobian conjecture...

21p thulanh8 17-09-2011 47 3   Download