R. Zapatrin

activity

19952020

most citedConnes duality in Lorentzian geometry

52 citations · 190 across the 39 of their papers we have counts for

collaborators

Showing 2000Show all

3 papers · 1 filter

quant-ph2000

Decomposition of pure states of a quantum register

Ioannis Raptis, Roman R. Zapatrin

Using the leading vector method, we show that any vector $h \in (C^{2})^{\otimes l}$ can be decomposed as a sum of at most (and at least in the generic case) $2^{l} - l$ product vectors us…

math.CT2000★ 2 cited

Algebraic duality for partially ordered sets

Roman R. Zapatrin

For an arbitrary partially ordered set $P$ its {\em dual} $P^{*}$ is built as the collection of all monotone mappings $P\to\2$ where $\2=\{0,1\}$ with $0 < 1$ . The set of mappings $P^*…

math.CO2000★ 18 cited

Incidence algebras of simplicial complexes

Roman R. Zapatrin

With any locally finite partially ordered set $K$ its incidence algebra $Ω (K)$ is associated. We shall consider algebras over fields with characteristic zero. In this case there is…