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<!DOCTYPE article PUBLIC "-//NLM//DTD JATS (Z39.96) Journal Publishing DTD v1.0 20120330//EN" "JATS-journalpublishing1.dtd"><article xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink" article-type="research-article"><front><journal-meta><journal-id journal-id-type="publisher-id">INFORMATICA</journal-id><journal-title-group><journal-title>Informatica</journal-title></journal-title-group><issn pub-type="epub">0868-4952</issn><issn pub-type="ppub">0868-4952</issn><publisher><publisher-name>VU</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="publisher-id">INF12211</article-id><article-id pub-id-type="doi">10.3233/INF-2001-12211</article-id><article-categories><subj-group subj-group-type="heading"><subject>Research article</subject></subj-group></article-categories><title-group><article-title>The Solution of Two-Dimensional Neutron Diffusion Equation with Delayed Neutrons</article-title></title-group><contrib-group><contrib contrib-type="Author"><name><surname>Sapagovas</surname><given-names>Mifodijus</given-names></name><email xlink:href="mailto:m.sapagovas@ktl.mii.lt">m.sapagovas@ktl.mii.lt</email><xref ref-type="aff" rid="j_INFORMATICA_aff_000"/><xref ref-type="aff" rid="j_INFORMATICA_aff_001"/></contrib><contrib contrib-type="Author"><name><surname>Vileiniškis</surname><given-names>Virginijus</given-names></name><xref ref-type="aff" rid="j_INFORMATICA_aff_002"/><xref ref-type="aff" rid="j_INFORMATICA_aff_003"/></contrib><aff id="j_INFORMATICA_aff_000">Vytautas Magnus University, Vileikos 8, 3035 Kaunas, Lithuania</aff><aff id="j_INFORMATICA_aff_001">Institute of Mathematics and Informatics, Akademijos 4, 2600 Vilnius, Lithuania</aff><aff id="j_INFORMATICA_aff_002">Vytautas Magnus University, Vileikos 8, 3035 Kaunas, Lithuania</aff><aff id="j_INFORMATICA_aff_003">Lithuanian Energy Institute, Breslaujos 3, 3035 Kaunas, Lithuania</aff></contrib-group><pub-date pub-type="epub"><day>01</day><month>01</month><year>2001</year></pub-date><volume>12</volume><issue>2</issue><fpage>337</fpage><lpage>342</lpage><history><date date-type="received"><day>01</day><month>11</month><year>2000</year></date></history><abstract><p>The distribution of neutron population in nuclear reactor is described by using transport equations. One of possible approximations of neutron transport equation is given by the neutron diffusion equation. The paper presents numerical solution method of one group neutron diffusion equation with one group of delayed neutrons.</p></abstract><kwd-group><label>Keywords</label><kwd>neutron diffusion equation</kwd><kwd>the method of summary approximation</kwd><kwd>double sweep method</kwd></kwd-group></article-meta></front></article>