{"title":"Compactons in a class of doubly sublinear Gardner equations","authors":"Philip Rosenau , Alexander Oron","doi":"10.1016/j.wavemoti.2024.103427","DOIUrl":null,"url":null,"abstract":"<div><div>We introduce and study a class of doubly sublinear Gardner equations <span><math><mrow><msub><mrow><mi>u</mi></mrow><mrow><mi>t</mi></mrow></msub><mo>+</mo><mi>F</mi><msub><mrow><mrow><mo>(</mo><mi>u</mi><mo>;</mo><mi>n</mi><mo>)</mo></mrow></mrow><mrow><mi>x</mi></mrow></msub><mo>+</mo><msub><mrow><mi>u</mi></mrow><mrow><mn>3</mn><mi>x</mi></mrow></msub><mo>=</mo><mn>0</mn></mrow></math></span> where <span><math><mrow><mi>F</mi><mrow><mo>(</mo><mi>u</mi><mo>;</mo><mi>n</mi><mo>)</mo></mrow><mo>=</mo><msup><mrow><mi>u</mi></mrow><mrow><mn>1</mn><mo>+</mo><mi>n</mi></mrow></msup><mo>−</mo><msub><mrow><mi>κ</mi></mrow><mrow><mn>1</mn><mo>+</mo><mn>2</mn><mi>n</mi></mrow></msub><msup><mrow><mi>u</mi></mrow><mrow><mn>1</mn><mo>+</mo><mn>2</mn><mi>n</mi></mrow></msup></mrow></math></span>, which for <span><math><mrow><mn>0</mn><mo><</mo><mi>n</mi></mrow></math></span> induce solitons and in the doubly sublinear cases wherein <span><math><mrow><mo>−</mo><mn>1</mn><mo>/</mo><mn>2</mn><mo><</mo><mi>n</mi><mo><</mo><mn>0</mn></mrow></math></span>, <em>bi-directional</em> compactons propagating in either direction. Their emergence, evolution, chase and head-on interactions are studied.</div></div>","PeriodicalId":49367,"journal":{"name":"Wave Motion","volume":"132 ","pages":"Article 103427"},"PeriodicalIF":2.1000,"publicationDate":"2024-10-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Wave Motion","FirstCategoryId":"101","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S0165212524001574","RegionNum":3,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q2","JCRName":"ACOUSTICS","Score":null,"Total":0}
引用次数: 0
Abstract
We introduce and study a class of doubly sublinear Gardner equations where , which for induce solitons and in the doubly sublinear cases wherein , bi-directional compactons propagating in either direction. Their emergence, evolution, chase and head-on interactions are studied.
期刊介绍：
Wave Motion is devoted to the cross fertilization of ideas, and to stimulating interaction between workers in various research areas in which wave propagation phenomena play a dominant role. The description and analysis of wave propagation phenomena provides a unifying thread connecting diverse areas of engineering and the physical sciences such as acoustics, optics, geophysics, seismology, electromagnetic theory, solid and fluid mechanics.
The journal publishes papers on analytical, numerical and experimental methods. Papers that address fundamentally new topics in wave phenomena or develop wave propagation methods for solving direct and inverse problems are of interest to the journal.
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