On the Positivity of Propagator Differences
On the Positivity of Propagator Differences
复制标题
论传播者差异的积极性
DOI:
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发表时间:
2014
期刊:
影响因子:
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通讯作者:
A. Vasy
中科院分区:
文献类型:
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作者:
A. Vasy
We discuss positivity properties of certain‘distinguished propagators’, i.e., distinguished inverses of operators that frequently occur in scattering theory and wave propagation. We relate this to the work of Duistermaat and Hörmander on distinguished parametrices (approximate inverses), which has played a major role in quantum field theory on curved spacetimes recently.