Algebras and Representation Theory ( IF 0.5 ) Pub Date : 2020-11-17 , DOI: 10.1007/s10468-020-10007-9 Clément Guérin , Gang Liu , Allan Merino
In this paper, we give a complete picture of Howe correspondence for the setting (O(E, b), Pin(E, b),π), where O(E, b) is a real orthogonal group, Pin(E, b) is the two-fold Pin-covering of O(E, b), and π is the spinorial representation of Pin(E, b). More precisely, for a dual pair \((G, G^{\prime })\) in O(E, b), we determine explicitly the nature of its preimages \((\tilde {G}, \tilde {G^{\prime }})\) in Pin(E, b), and prove that apart from some exceptions, \((\tilde {G}, \tilde {G^{\prime }})\) is always a dual pair in Pin(E, b); then we establish the Howe correspondence for π with respect to \((\tilde {G}, \tilde {G^{\prime }})\).
中文翻译:
相应的脊柱表征中针群中的双对和对偶
在本文中,我们给出了设置(O(E,b),P i n(E,b),π)的Howe对应关系的完整图片,其中O(E,b)是实正交组P i n(E,b)是O(E,b)的两倍Pin-covering ,π是P i n(E,b)的脊椎表示。更确切地说,对于双对\((G,G ^ {\ prime}} \)在O(E,b)中,我们明确确定其原像的性质\((\ tilde {G},\ tilde {G ^ {\ prime}}) \)在P i n(E,b)中,并证明除某些例外情况之外,\((\ tilde {G},\ tilde {G ^ {\ prime}})\)在P i中始终是双对n(E,b); 然后针对\((\ tilde {G},\ tilde {G ^ {\ prime}})\)建立π的Howe对应关系。