自同構(gòu)

Toral automorphisms mapping is a transform technology widely applied in digital image scramble. 花托自同構(gòu)映射是一種變換技術(shù), 尤其多被用于數(shù)字圖像置亂。

Based on a non-solvable matrix Lie algebra L, the derivations and automorphisms of L were studied by the multiplication operation of block matrix. 摘要以一類非可解矩陣?yán)畲鷶?shù)L為研究對(duì)象，利用分塊矩陣的乘法運(yùn)算，對(duì)L的導(dǎo)子及自同構(gòu)進(jìn)行了研究。

On certain condition the result can be reverted by controlling the transformation time because of the periodicity of the toral automorphisms transformation. 由于花托自同構(gòu)映射變換在一定條件下具有周期性, 使得通過(guò)控制變換的次數(shù)可以實(shí)現(xiàn)還原。

Application to characterizing the Jordan ring automorphisms on the space of self-adjoint operators and the space symmetric operators are also presented. 作為應(yīng)用，獲得自伴算子空間和對(duì)稱算子空間上的約當(dāng)環(huán)同構(gòu)的具體刻畫。

It gives the necessary and sufficient conditions for extension-isomorph to stem coverslifting all automorphisms of a group, and a constructive method for such stem covers. 英文摘要： we develop a struCture theory related to the stem covers lifting group automorphisms