<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE article PUBLIC "-//NLM//DTD JATS (Z39.96) Journal Publishing DTD v1.3 20210610//EN" "JATS-journalpublishing1-3.dtd">
<article article-type="research-article" dtd-version="1.3" xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xml:lang="ru"><front><journal-meta><journal-id journal-id-type="publisher-id">mais</journal-id><journal-title-group><journal-title xml:lang="ru">Моделирование и анализ информационных систем</journal-title><trans-title-group xml:lang="en"><trans-title>Modeling and Analysis of Information Systems</trans-title></trans-title-group></journal-title-group><issn pub-type="ppub">1818-1015</issn><issn pub-type="epub">2313-5417</issn><publisher><publisher-name>Yaroslavl State University</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="doi">10.18255/1818-1015-2012-2-5-18</article-id><article-id custom-type="elpub" pub-id-type="custom">mais-15</article-id><article-categories><subj-group subj-group-type="heading"><subject>Research Article</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="ru"><subject>Оригинальные статьи</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="en"><subject>Articles</subject></subj-group></article-categories><title-group><article-title>Новые компоненты схемы модулей MP3 (2; -1; 2; 0) стабильных когерентных пучков ранга 2 без кручения на трехмерном проективном пространстве P3</article-title><trans-title-group xml:lang="en"><trans-title>Some New Components of the Moduli Scheme MP3(2; -1; 2; 0) of Stable Coherent Torsion Free Sheaves of Rank 2 on P3</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Заводчиков</surname><given-names>Михаил Александрович</given-names></name><name name-style="western" xml:lang="en"><surname>Zavodchikov</surname><given-names>M. A.</given-names></name></name-alternatives><bio xml:lang="ru"><p>ассистент кафедры геометрии</p></bio><bio xml:lang="en"><p>ассистент кафедры геометрии</p></bio><email xlink:type="simple">zav-mikhail@yandex.ru</email><xref ref-type="aff" rid="aff-1"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru"><institution>Ярославский государственный педагогический университет им. К.Д. Ушинского</institution><country>Россия</country></aff><aff xml:lang="en"><institution>Ярославский государственный педагогический университет им. К.Д. Ушинского</institution><country>Russian Federation</country></aff></aff-alternatives><pub-date pub-type="collection"><year>2012</year></pub-date><pub-date pub-type="epub"><day>25</day><month>02</month><year>2015</year></pub-date><volume>19</volume><issue>2</issue><fpage>5</fpage><lpage>18</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Заводчиков М.А., 2015</copyright-statement><copyright-year>2015</copyright-year><copyright-holder xml:lang="ru">Заводчиков М.А.</copyright-holder><copyright-holder xml:lang="en">Zavodchikov M.A.</copyright-holder><license xml:lang="ru" license-type="creative-commons-attribution" xlink:href="https://creativecommons.org/licenses/by/4.0/" xlink:type="simple"><license-p>Данная работа распространяется под лицензией Creative Commons Attribution 4.0.</license-p></license><license xml:lang="en" license-type="creative-commons-attribution" xlink:href="https://creativecommons.org/licenses/by/4.0/" xlink:type="simple"><license-p>This work is licensed under a Creative Commons Attribution 4.0 License.</license-p></license></permissions><self-uri xlink:href="https://www.mais-journal.ru/jour/article/view/15">https://www.mais-journal.ru/jour/article/view/15</self-uri><abstract><p>Рассматривается схема модулей Гизекера–Маруямы M := MP3 (2;-1; 2; 0) стабильных когерентных пучков без кручения ранга 2 с классами Черна c1 = -1, c2 = 2, c3 = 0 на трехмерном проективном пространстве P³. Мы определяем два множества пучков M1 и M2 в M и доказываем, что их замыкания M1 и M2 – неприводимые компоненты в M размерностей 15 и 19 соответственно.</p></abstract><trans-abstract xml:lang="en"><p>In this paper we consider Giseker-Maruyama moduli scheme M := MP3(2;¡1; 2; 0) of stable coherent torsion free sheaves of rank 2 with Chern classes c1 = -1, c2 = 2, c3 = 0 on 3-dimensional projective space P3. We will de¯ne two sets of sheaves M1 and M2 in M and we will prove that closures of M1 and M2 in M are irreducible components of dimensions 15 and 19, accordingly.</p></trans-abstract><kwd-group xml:lang="ru"><kwd>компактификация</kwd><kwd>схема модулей</kwd><kwd>когерентный пучок ранга 2 без кручения</kwd><kwd>трехмерное проективное пространство</kwd></kwd-group><kwd-group xml:lang="en"><kwd>compactification</kwd><kwd>moduli scheme</kwd><kwd>coherent torsion free sheave of rank 2</kwd><kwd>3-dimensional projective space</kwd></kwd-group></article-meta></front><back><ref-list><title>References</title><ref id="cit1"><label>1</label><citation-alternatives><mixed-citation xml:lang="ru">Hartshorne R. Sols I. Stable rank 2 vector bundles on P3 with c1 = ¡1; c2 = 2 (English) // J. Reine Angew. Math. 1981. 325. P. 145–152.</mixed-citation><mixed-citation xml:lang="en">Hartshorne R. Sols I. Stable rank 2 vector bundles on P3 with c1 = ¡1; c2 = 2 (English) // J. Reine Angew. Math. 1981. 325. P. 145–152.</mixed-citation></citation-alternatives></ref><ref id="cit2"><label>2</label><citation-alternatives><mixed-citation xml:lang="ru">Meseguer J., Sols I., Stromme S. A. Compactification of a family of vector bundles on P3 (English) // 18th Scand. Congr. Math., Proc., Aarhus 1980, Prog. Math. 1981. 11. P. 474–494.</mixed-citation><mixed-citation xml:lang="en">Meseguer J., Sols I., Stromme S. A. Compactification of a family of vector bundles on P3 (English) // 18th Scand. Congr. Math., Proc., Aarhus 1980, Prog. Math. 1981. 11. P. 474–494.</mixed-citation></citation-alternatives></ref><ref id="cit3"><label>3</label><citation-alternatives><mixed-citation xml:lang="ru">Hartshorne R. Stable reflexive sheaves (English) // Math. Ann. 1980. 254. P. 121–176.</mixed-citation><mixed-citation xml:lang="en">Hartshorne R. Stable reflexive sheaves (English) // Math. Ann. 1980. 254. P. 121–176.</mixed-citation></citation-alternatives></ref><ref id="cit4"><label>4</label><citation-alternatives><mixed-citation xml:lang="ru">Оконек К., Шнейдер М., Шпиндлер Х. Векторные расслоения на комплексных проективных пространствах. М.: Мир, 1984.</mixed-citation><mixed-citation xml:lang="en">Оконек К., Шнейдер М., Шпиндлер Х. Векторные расслоения на комплексных проективных пространствах. М.: Мир, 1984.</mixed-citation></citation-alternatives></ref><ref id="cit5"><label>5</label><citation-alternatives><mixed-citation xml:lang="ru">D. Huyberchts, M. Lehn. The Geometry of moduli spaces of sheaves. A Publication of the Max-Planck-Institut f¨ur Matematik, Bonn, 1997.</mixed-citation><mixed-citation xml:lang="en">D. Huyberchts, M. Lehn. The Geometry of moduli spaces of sheaves. A Publication of the Max-Planck-Institut f¨ur Matematik, Bonn, 1997.</mixed-citation></citation-alternatives></ref><ref id="cit6"><label>6</label><citation-alternatives><mixed-citation xml:lang="ru">Chang M.-C. Stable rank 2 reflexive sheaves on P3 with small c2 and applications // Trans. Amer. Math. Soc. 1984. 284, 1. P. 57–89.</mixed-citation><mixed-citation xml:lang="en">Chang M.-C. Stable rank 2 reflexive sheaves on P3 with small c2 and applications // Trans. Amer. Math. Soc. 1984. 284, 1. P. 57–89.</mixed-citation></citation-alternatives></ref><ref id="cit7"><label>7</label><citation-alternatives><mixed-citation xml:lang="ru">Maruyama M. Moduli of stable sheaves. II (English) // J. Math. Kyoto Univ. 1978. 18. P. 557–614.</mixed-citation><mixed-citation xml:lang="en">Maruyama M. Moduli of stable sheaves. II (English) // J. Math. Kyoto Univ. 1978. 18. P. 557–614.</mixed-citation></citation-alternatives></ref><ref id="cit8"><label>8</label><citation-alternatives><mixed-citation xml:lang="ru">Stromme S.-A. Ample Divisors on Fine Moduli Spaces on Projective Plane // Math. Z. 1984. 187. P. 405–423.</mixed-citation><mixed-citation xml:lang="en">Stromme S.-A. Ample Divisors on Fine Moduli Spaces on Projective Plane // Math. Z. 1984. 187. P. 405–423.</mixed-citation></citation-alternatives></ref></ref-list><fn-group><fn fn-type="conflict"><p>The authors declare that there are no conflicts of interest present.</p></fn></fn-group></back></article>
