- ON SIGNED SPACES
- ON SIGNED SPACES
- ㆍ 저자명
- Kim. Si-Ju,Choi. Taeg-Young
- ㆍ 간행물명
- East Asian mathematical journal
- ㆍ 권/호정보
- 2011년|27권 1호|pp.83-89 (7 pages)
- ㆍ 발행정보
- 영남수학회
- ㆍ 파일정보
- 정기간행물|ENG| PDF텍스트
- ㆍ 주제분야
- 기타
이 논문은 한국과학기술정보연구원과 논문 연계를 통해 무료로 제공되는 원문입니다.
We denote by $mathcal{Q}(A)$ the set of all matrices with the same sign pattern as A. A matrix A has signed -space provided there exists a set S of sign patterns such that the set of sign patterns of vectors in the -space of e $ ilde{A}$ is S, for each e $ ilde{A}{in}mathcal{Q}(A)$. In this paper, we show that the number of sign patterns of elements in the row space of $mathcal{S}^*$-matrix is $3^{m+1}-2^{m+2}+2$. Also the number of sign patterns of vectors in the -space of a totally L-matrix is obtained.