Connected Lie groups with many locally bounded finite-dimensional representations are linear
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In this paper, it is proved that the following conditions are equivalent for any connected Lie group:(i) G admits sufficiently many locally bounded (not necessarily continuous) finite-dimensional representations;(ii) G admits a faithful locally bounded (not necessarily continuos) finite-dimensional representation;(iii) G admits sufficiently many continuous finite-dimensional representations;(iv) G admits a continuous faithful finite-dimensional representation, i.e., G is a linear Lie group. The equivalence (iv)⇔(i) is somewhat surprising.
Abstract
In this paper, it is proved that the following conditions are equivalent for any connected Lie group:(i) G admits sufficiently many locally bounded (not necessarily continuous) finite-dimensional representations;(ii) G admits a faithful locally bounded (not necessarily continuos) finite-dimensional representation;(iii) G admits sufficiently many continuous finite-dimensional representations;(iv) G admits a continuous faithful finite-dimensional representation, i.e., G is a linear Lie group. The equivalence (iv)⇔(i) is somewhat surprising.
참고문헌 (22)
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