Results 61 to 70 of about 155 (122)

A Torelli theorem for graphs via quasistable divisors

open access: yesForum of Mathematics, Sigma
AbstractThe Torelli theorem establishes that the Jacobian of a smooth projective curve, together with the polarization provided by the theta divisor, fully characterizes the curve. In the case of nodal curves, there exists a concept known as fine compactified Jacobian.
Alex Abreu, Marco Pacini
openaire   +4 more sources

Радиус квазиустойчивости множества Парето векторной задачи минимизации линейных форм на множестве подстановок

open access: yes, 1999
For a linear vector optimization problem over a subset of the permutation group, we give a formula for the quasistability radius.Работа выполнена при поддержке Фонда фундаментальных исследова­ний Республики Беларусь (проект №Ф97-266)
Емеличев, В. А.   +1 more
core  

FOOD COMPOSITION OF THE SHRIMP PALAEMON ADSPERSUS RATHKE, 1837 (CRUSTACEA DECAPODA, PALAEMONIDAE) IN KARKINITSKY BAY OF THE BLACK SEA IN SEPTEMBER 2016

open access: yes, 2019
Palaemon adspersus is an inhabitant of the upper shelf (0–30 m) in temperate and subtropical zones of the East Atlantic, the northern limit of range reaching 60°N (Norway coast) and its southern limit being Atlantic waters of Morocco coast.
Буруковский, Р. Н.
core   +1 more source

On two stability types for a multicriteria integer linear programming problem

open access: yes, 2020
We consider a multicriteria integer linear programming problem with a parametrized optimality principle which is implemented by means of partitioning the partial criteria set into non-empty subsets, inside which relations on the set of solutions are ...
Emelichev, V.A., Bukhtoyarov, S.E.
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Micropolyelectrons as possible sources of the anomalous positron peaks in heavy-ion reactions [PDF]

open access: yes, 1988
We propose that aggregates of electrons and positrons in a small assembly (micropolyelectrons (e{sup +}e{sup {minus}}){sup n}), held together by their own electromagnetic interactions, are probably the sources of the anomalous positron peaks observed in ...
Wong, Cheuk-Yin.
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Weak Supercyclicity -- An Expository Survey [PDF]

open access: yes
This is an exposition on supercyclicity and weak supercyclicity, especially designed to advance further developments in weakly supercyclicity, which is a recent research field showing significant momentum during the past two decades.
Kubrusly, Carlos S.
core   +1 more source

Kwantowa teoria Lee Smolina a recentywizm Józefa Bańki [PDF]

open access: yes, 2004
The author focused on a certain ideological analogy between the views of Lee Smolin and Józef Bańka. The idea that contemporary science is included in the paradigm of quasistability, thus indeterminacy, is the essence of this analogy.
Czerny, Janusz
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Quasistates in a ring coupled to a reservoir and their relation to the Dicke effect

open access: yes, 2003
We study the energy spectrum and the persistent current in an ideal one-dimensional mesoscopic ring coupled to an external fermionic reservoir. The contact between ring and reservoir is described by a tunneling operator, which causes an indirect coupling between different ring states via states in the reservoir. For strong coupling to the reservoir new
Wunsch, Bernhard, Chudnovskiy, Alexander
openaire   +2 more sources

Weak Quasistability and Rajchman measures

open access: yes
It is shown that weak quasistability does not imply power boundedness, but coercive power unbounded operators cannot be weakly quasistable.\ Although a finite measure over the unit disc is a Rajchman measure if and only if the position operator is weakly stable, it is shown that the position operator is weakly quasistable for every finite continuous ...
openaire   +2 more sources

Про радіус квазістійкості для багатокритерійної цілочисельної задачі лінійного програмування про знаходження екстремальних розв’язкі

open access: yes, 2019
We consider a multicriteria integer linear programming problem with a targeting set of optimal solutions given by the set of all individual criterion minimizers (extrema).
Nikulin, Yu., Emelichev, V.
core  

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