1. Schölkopf, B., Smola, A.J., Bach, F.: Learning with Kernels: Support Vector Machines, Regularization, Optimization, and Beyond. MIT press, Cambridge (2002)
2. Aronszajn, N.: Theory of reproducing kernels. Trans. Am. Math. Soc. 68(3), 337–404 (1950)
3. Lecture Notes in Computer Science (Lecture Notes in Artificial Intelligence);B Schölkopf,2001
4. Argyriou, A., Micchelli, C.A., Pontil, M.: When is there a representer theorem? vector versus matrix regularizers. J. Mach. Learn. Res. 10(Nov), 2507–2529 (2009)
5. Gohberg, I., Goldberg, S., Kaashoek, M.A.: Hilbert-Schmidt operators. In: Classes of Linear Operators, vol. I, pp. 138–147. Birkhäuser, Basel (1990)