In this paper we study certain kinds of links; proper links, algebraically split links and -algebraically split links. These links have 'algebraic' definitions. In fact these are defined in terms of the linking number. We shall give these links certain 'geometric' definitions. By using the geometric definitions, we study the Arf invariants of these links.
Teruhisa KADOKAMI. Akira YASUHARA. "Proper links, algebraically split links and Arf invariant." J. Math. Soc. Japan 52 (3) 591 - 608, July, 2000. https://doi.org/10.2969/jmsj/05230591