What is martin walt?

As an AI language model, I could not find a person named Martin Walt. However, there is a possibility that you may be referring to one of the following individuals:

1. Martin Walt is a former professional rugby union player from South Africa who played for the Sharks, Natal, and the Springboks (South African national team) between 1994 and 1996.

2. There is a Martin Walt who holds a Ph.D. in Mathematics and works as a professor of mathematics at Montana State University.

3. There is a Martin Walt who is the Managing Director of Givaudan SA (a Swiss manufacturer of flavors, fragrances, and active cosmetic ingredients) for the Asia-Pacific region.

If you could give me more context or specifics about the Martin Walt you are interested in, I would be happy to provide more information.