Wang and Wu characterized matrices which are sums of two square-zero matrices, and proved that every matrix with trace-zero is a sum of four square-zero matrices. Moreover, they gave necessary or sufficient conditions for a matrix to be a sum of three square-zero matrices. In particular, they proved
โฆ LIBER โฆ
On the cofactors of zero-sum matrices of higher nullity
โ Scribed by I. Cederbaum
- Publisher
- Elsevier Science
- Year
- 1981
- Tongue
- English
- Weight
- 181 KB
- Volume
- 19
- Category
- Article
- ISSN
- 0020-7225
No coin nor oath required. For personal study only.
๐ SIMILAR VOLUMES
On sums of three square-zero matrices
โ
K. Takahashi
๐
Article
๐
2000
๐
Elsevier Science
๐
English
โ 98 KB
On normal matrices of zeros and ones wit
โ
Bo-Ying Wang; Fuzhen Zhang
๐
Article
๐
1998
๐
Elsevier Science
๐
English
โ 553 KB
Matrices of zeros and ones with given li
โ
Richard A. Brualdi; Geir Dahl
๐
Article
๐
2003
๐
Elsevier Science
๐
English
โ 154 KB
On the number of zero sum subsequences
โ
Weidong Gao
๐
Article
๐
1997
๐
Elsevier Science
๐
English
โ 219 KB
Let Z. be the cyclic group of order n. For a sequence S of elements in Z~, we use f~(S) to denote the number of subsequences, the sum of whose elements is zero. In this paper, we give a characterization on the sequences S of elements in Zn for whichf~(S) < 2 Isl -" รท k -,, under the restriction 1 ~
The class of matrices of zeros, ones, an
โ
Richard A. Brualdi; T.S. Michael
๐
Article
๐
1989
๐
Elsevier Science
๐
English
โ 929 KB
On the finiteness of higher knot sums
โ
M.J. Dunwoody; R.A. Fenn
๐
Article
๐
1987
๐
Elsevier Science
๐
English
โ 477 KB