Abstract:
This paper gives a mathematical basis of some methods of technical
analysis which are used in the financial
market. In particular, with the help of the introduced notion of
the $H$-volatility ($H>0$), the so-called
renko- and kagi-models are founded and corrected.
For a Wiener process the $H$-volatility
has the properties which take place also in the financial market
with some differences which indicate the existence of arbitrage possibilities.
We obtain this arbitrage with the help of introduced
renko-, and kagi-$H$-strategies.