<?xml version="1.0" encoding="UTF-8"?><?xml-stylesheet type="text/xsl" href="static/style.xsl"?><OAI-PMH xmlns="http://www.openarchives.org/OAI/2.0/" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://www.openarchives.org/OAI/2.0/ http://www.openarchives.org/OAI/2.0/OAI-PMH.xsd"><responseDate>2026-04-28T19:52:53Z</responseDate><request verb="GetRecord" identifier="oai:uvadoc.uva.es:10324/33584" metadataPrefix="mods">https://uvadoc.uva.es/oai/request</request><GetRecord><record><header><identifier>oai:uvadoc.uva.es:10324/33584</identifier><datestamp>2021-06-24T07:21:24Z</datestamp><setSpec>com_10324_22154</setSpec><setSpec>com_10324_954</setSpec><setSpec>com_10324_894</setSpec><setSpec>col_10324_22155</setSpec></header><metadata><mods:mods xmlns:mods="http://www.loc.gov/mods/v3" xmlns:doc="http://www.lyncode.com/xoai" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://www.loc.gov/mods/v3 http://www.loc.gov/standards/mods/v3/mods-3-1.xsd">
<mods:name>
<mods:namePart>Gadella Urquiza, Manuel</mods:namePart>
</mods:name>
<mods:name>
<mods:namePart>Lara, Luis</mods:namePart>
</mods:name>
<mods:extension>
<mods:dateAvailable encoding="iso8601">2018-12-19T13:52:28Z</mods:dateAvailable>
</mods:extension>
<mods:originInfo>
<mods:dateIssued encoding="iso8601">2018</mods:dateIssued>
</mods:originInfo>
<mods:identifier type="citation">International Journal of Modern Physics C, 2018, vol. 29, n. 8, 1850067</mods:identifier>
<mods:identifier type="issn">0129-1831</mods:identifier>
<mods:identifier type="uri">http://uvadoc.uva.es/handle/10324/33584</mods:identifier>
<mods:identifier type="doi">10.1142/S0129183118500675</mods:identifier>
<mods:abstract>In this paper, we discuss a method based on a segmentary approximation of solutions of the Schrödinger equation by quadratic splines, for which the coefficients are determined by a variational method that does not require the resolution of complicated algebraic equations. The idea is the application of the method to one-dimensional periodic potentials. We include the determination of the eigenvalues up to a given level, and therefore an approximation to the lowest energy bands. We apply the method to concrete examples with interest in physics and discussed the numerical errors.</mods:abstract>
<mods:language>
<mods:languageTerm>eng</mods:languageTerm>
</mods:language>
<mods:accessCondition type="useAndReproduction">info:eu-repo/semantics/openAccess</mods:accessCondition>
<mods:accessCondition type="useAndReproduction">© 2018 World Scientific Publishing</mods:accessCondition>
<mods:titleInfo>
<mods:title>A study of periodic potentials based on quadratic splines</mods:title>
</mods:titleInfo>
<mods:genre>info:eu-repo/semantics/article</mods:genre>
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