2 citations · 3 across the 5 of their papers we have counts for
5 papers
On sound ranging in some non-proper metric spaces
Sergij V. Goncharov
We consider the sound ranging, or source localization, problem --- find the unknown source-point from known moments when the spherical wave of linearly, with time, increasing radiu…
Using fuzzy bits and neural networks to partially invert few rounds of some cryptographic hash functions
Sergij V. Goncharov
We consider fuzzy, or continuous, bits, which take values in [0;1] and (-1;1] instead of {0;1}, and operations on them (NOT, XOR etc.) and on their sequences (ADD), to obtain the g…
On sound ranging in proper metric spaces
Sergij V. Goncharov
We consider the sound ranging, or source localization, problem - find the source-point from the moments when the wave-sphere of linearly, with time, increasing radius reaches the s…
On covering a ball by congruent subsets in normed spaces
Sergij V. Goncharov
We consider the covering of a ball in certain normed spaces by its congruent subsets and show that if the finite number of sets is not greater than the dimensionality of the space,…
On sound ranging in Hilbert space
Sergij V. Goncharov
We consider the sound ranging problem, which is to find the position of the source-point from the moments when the wave-sphere of linearly, with time, increasing radius reaches the…