Home
→
Browsing by Author

Browsing by Author "Al’pin Y."

Now showing items 1-5 of 5

A New Proof of the Protasov-Voynov Theorem on Semigroups of Nonnegative Matrices

Al’pin Y.; Al’pina V. (2019)

© 2019, Pleiades Publishing, Ltd. A new combinatorial proof of the Protasov-Voynov theorem on the structure of irreducible semigroups of nonnegative matrices is proposed. The original proof was obtained by geometric methods.
Combinatorial and Spectral Properties of Semigroups of Stochastic Matrices

Al’pin Y.; Al’pina V. (2016)

© 2016, Springer Science+Business Media New York.The paper studies the notion of imprimitivity index of a semigroup of nonnegative matrices, introduced by Protasov and Voynov. A new characterization of the imprimitivity ...
Indices of Imprimitivity of the Temporal Components of a Semigroup of Nonnegative Matrices

Al’pin Y.; Al’pina V. (2019)

© 2019, Springer Science+Business Media, LLC, part of Springer Nature. It is proved that the index of imprimitivity of a semigroup of nonnegative block-monomial matrices free of zero rows decomposes into the sum of the ...
Locally Strongly Primitive Semigroups of Nonnegative Matrices

Al’pin Y.; Al’pina V. (2017)

© 2017 Springer Science+Business Media, LLC The class of locally strongly primitive semigroups of nonnegative matrices is introduced. It is shown that, by a certain permutation similarity, all the matrices of a semigroup ...
On Wielandt type inequalities for powers of complex matrices

Al’pin Y.; Il’in S. (2016)

© 2016, Pleiades Publishing, Ltd.The criterion for coincidence of spectral radiuses of a complex matrix A and of the matrix |A| obtained by replacing entries of A by their absolute values was given by Wielandt. In this ...

Now showing items 1-5 of 5

Search DSpace

Advanced Search

Browse

All of Kazan Federal University Digital Repository

Browsing by Author "Al’pin Y."

Browsing by Author "Al’pin Y."

Search DSpace

Browse

All of Kazan Federal University Digital Repository

My Account