论文标题

在平滑规范空间中的Wigner定理上

On Wigner's theorem in smooth normed spaces

论文作者

Ilišević, Dijana, Turnšek, Aleksej

论文摘要

在本说明中,我们概括了著名的Wigner的统一性\独立定理。 For $X$ and $Y$ smooth normed spaces and $f:X\to Y$ a surjective mapping such that $|[f(x),f(y)]|=|[x,y]|$, $x,y\in X$, where $[\cdot,\cdot]$ is the unique semi-inner product, we show that $f$ is phase equivalent to either a linear or an anti-linear surjective isometry.当$ x $和$ y $是平稳的真实规范空间和$ y $ riltery convex时,我们表明wigner的定理等于$ \ {\ | f(x)+f(y)\ |,\ | f(x)-f(x)-f(x)-f(y)-f(y)\ | \ | \ | \ | \ | x $。

In this note we generalize the well-known Wigner's unitary-anti\-unitary theorem. For $X$ and $Y$ smooth normed spaces and $f:X\to Y$ a surjective mapping such that $|[f(x),f(y)]|=|[x,y]|$, $x,y\in X$, where $[\cdot,\cdot]$ is the unique semi-inner product, we show that $f$ is phase equivalent to either a linear or an anti-linear surjective isometry. When $X$ and $Y$ are smooth real normed spaces and $Y$ strictly convex, we show that Wigner's theorem is equivalent to $\{\|f(x)+f(y)\|,\|f(x)-f(y)\|\}=\{\|x+y\|,\|x-y\|\}$, $x,y\in X$.

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