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5 votes
4 answers
952 views

Limit of an integral vs limit of the integrand

I have a simple Fourier transform problem, originating from mathematical physics (system of linear PDEs), which reduces to taking the integral $$ I(\alpha)\equiv\int_{-\infty}^\infty e^{ikr} \cfrac{\...
jonathan wolf's user avatar
0 votes
1 answer
410 views

About vertex algebra, mode expansion

A vertex operator is a linear map associating every state to a operator-valued distributions (quantum field) on a algebra curve, which is also called operator-state correspondence. Chose a local ...
Xuexing Lu's user avatar