Slt-majorization and its linear preservers1
کد مقاله : 1010-SLAA10
نویسندگان
اسما ایلخانی زاده منش *
دانشگاه ولیعصر رفسنجان
چکیده مقاله
Let Mn be the algebra of all n-by-n real matrices. A matrix R 2 Mn with
nonnegative entries is called row substochastic if each row sum is at most 1. For
x; y 2 Rn, we say that x is row substochastic lower triangular majorized by y (write
as x ≺slt y ) if there exists a row substochastic lower triangular matrix R such that
x = Ry. In this paper, the structure of all linear functions T : R2 ! R2, preserving
(strongly preserving) ≺slt are characterized
کلیدواژه ها
(Strong) linear preserver, row substochastic matrices, slt-majorization
وضعیت: پذیرفته شده برای ارائه شفاهی