<?xml version="1.0" encoding="UTF-8"?><xml><records><record><source-app name="Biblio" version="7.x">Drupal-Biblio</source-app><ref-type>17</ref-type><contributors><authors><author><style face="normal" font="default" size="100%">ALESSANDRO CALAMAI</style></author></authors></contributors><titles><title><style face="normal" font="default" size="100%">BRANCHES OF HARMONIC SOLUTIONS FOR A CLASS OF PERIODIC DIFFERENTIAL-ALGEBRAIC EQUATIONS</style></title><secondary-title><style face="normal" font="default" size="100%">Communications in Applied Analysis</style></secondary-title><short-title><style face="normal" font="default" size="100%">BRANCHES OF HARMONIC SOLUTIONS</style></short-title></titles><keywords><keyword><style  face="normal" font="default" size="100%">34A09</style></keyword><keyword><style  face="normal" font="default" size="100%">34C25</style></keyword><keyword><style  face="normal" font="default" size="100%">34C40.</style></keyword></keywords><dates><year><style  face="normal" font="default" size="100%">2011</style></year><pub-dates><date><style  face="normal" font="default" size="100%">08/2011</style></date></pub-dates></dates><urls><web-urls><url><style face="normal" font="default" size="100%">http://www.acadsol.eu/en/articles/15/3/1.pdf</style></url></web-urls></urls><volume><style face="normal" font="default" size="100%">15</style></volume><pages><style face="normal" font="default" size="100%">282</style></pages><language><style face="normal" font="default" size="100%">eng</style></language><abstract><style face="normal" font="default" size="100%">&lt;div class=&quot;rtejustify&quot;&gt;We study a class of T -periodic parametrized differential-algebraic equations, which are equivalent to suitable ordinary differential equations on manifolds. By combining a recent result on the degree of tangent vector fields, due to Spadini, with an argument on periodic solutions of ODEs on manifolds, we get a global continuation result for T -periodic solutions of our equations.&lt;/div&gt;
</style></abstract><issue><style face="normal" font="default" size="100%">3</style></issue><work-type><style face="normal" font="default" size="100%">scientific: mathematics</style></work-type><section><style face="normal" font="default" size="100%">273</style></section></record><record><source-app name="Biblio" version="7.x">Drupal-Biblio</source-app><ref-type>17</ref-type><contributors><authors><author><style face="normal" font="default" size="100%">PIERLUIGI BENEVIERI</style></author><author><style face="normal" font="default" size="100%">ALESSANDRO CALAMAI</style></author><author><style face="normal" font="default" size="100%">MASSIMO FURI</style></author><author><style face="normal" font="default" size="100%">MARIA PATRIZIA PERA</style></author></authors></contributors><titles><title><style face="normal" font="default" size="100%">FAST FORCED OSCILLATIONS FOR CONSTRAINED MOTION PROBLEMS WITH DELAY</style></title></titles><keywords><keyword><style  face="normal" font="default" size="100%">34C40</style></keyword><keyword><style  face="normal" font="default" size="100%">34K13</style></keyword><keyword><style  face="normal" font="default" size="100%">70K42</style></keyword></keywords><dates><year><style  face="normal" font="default" size="100%">2009</style></year><pub-dates><date><style  face="normal" font="default" size="100%">2009</style></date></pub-dates></dates><urls><web-urls><url><style face="normal" font="default" size="100%">http://www.acadsol.eu/en/articles/13/4/4.pdf</style></url></web-urls></urls><volume><style face="normal" font="default" size="100%">13</style></volume><pages><style face="normal" font="default" size="100%">11</style></pages><language><style face="normal" font="default" size="100%">eng</style></language><abstract><style face="normal" font="default" size="100%">&lt;p&gt;We show that a global continuation result for &lt;em&gt;T&lt;/em&gt; -periodic solutions of delay differential equations on manifolds proved by the authors in a previous paper still holds when the period&lt;em&gt; T&lt;/em&gt; is smaller than the delay. As an application we get an existence result for fast forced oscillations of motion problems with delay on compact, topologically nontrivial, manifolds.&lt;/p&gt;
</style></abstract><issue><style face="normal" font="default" size="100%">4</style></issue><section><style face="normal" font="default" size="100%">497</style></section></record><record><source-app name="Biblio" version="7.x">Drupal-Biblio</source-app><ref-type>17</ref-type><contributors><authors><author><style face="normal" font="default" size="100%">ALESSANDRO CALAMAI</style></author><author><style face="normal" font="default" size="100%">MASSIMO FURI</style></author><author><style face="normal" font="default" size="100%">ALFONSO VIGNOLI</style></author></authors></contributors><titles><title><style face="normal" font="default" size="100%">AN OVERVIEW ON SPECTRAL THEORY FOR NONLINEAR OPERATORS</style></title></titles><keywords><keyword><style  face="normal" font="default" size="100%">47H14</style></keyword><keyword><style  face="normal" font="default" size="100%">47J05</style></keyword><keyword><style  face="normal" font="default" size="100%">47J10</style></keyword></keywords><dates><year><style  face="normal" font="default" size="100%">2009</style></year><pub-dates><date><style  face="normal" font="default" size="100%">2009</style></date></pub-dates></dates><urls><web-urls><url><style face="normal" font="default" size="100%">http://www.acadsol.eu/en/articles/13/4/5.pdf</style></url></web-urls></urls><volume><style face="normal" font="default" size="100%">13</style></volume><pages><style face="normal" font="default" size="100%">26</style></pages><language><style face="normal" font="default" size="100%">eng</style></language><abstract><style face="normal" font="default" size="100%">&lt;p&gt;We compare different spectral theories for nonlinear operators, focusing in particular on the notion of spectrum at a point recently introduced by the authors. We discuss the main properties of the nonlinear spectrum and present illustrating applications and examples.&lt;/p&gt;
</style></abstract><issue><style face="normal" font="default" size="100%">4</style></issue><section><style face="normal" font="default" size="100%">509</style></section></record></records></xml>