You're right, thanks for pointing that out. I missed adding the reference: Kammler DW. A First Course in Fourier Analysis. 2nd ed. Cambridge University Press; 2008. Figure 1.19. This visualization of the relationships between time and frequency domains is a good illustration of Pontryagin duality applied to signal processing
Comments
In case anyone else is curious about this, I found the reference to be Kammler's "A First Course in Fourier Analysis".
You're right, thanks for pointing that out. I missed adding the reference: Kammler DW. A First Course in Fourier Analysis. 2nd ed. Cambridge University Press; 2008. Figure 1.19. This visualization of the relationships between time and frequency domains is a good illustration of Pontryagin duality applied to signal processing