{"title":"Global Existence and Blow-up of Solutions for a Class of Singular Parabolic Equations with Viscoelastic Term","authors":"Yanchao Gao, Wenxu Jia, Zhixin Feng","doi":"10.1155/2024/5754129","DOIUrl":"https://doi.org/10.1155/2024/5754129","url":null,"abstract":"In this paper, we consider the initial boundary value problem for a class of singular parabolic equations with viscoelastic term and logarithmic term. By using the technique of cut-off and the method of Faedo-Galerkin approximation, the local existence of the weak solution is established. Based on the potential well method, the global existence of the weak solution is derived. Furthermore, we prove that the weak solution blows up in finite time by taking the concavity analysis method.","PeriodicalId":15840,"journal":{"name":"Journal of Function Spaces","volume":"1 1","pages":""},"PeriodicalIF":1.9,"publicationDate":"2024-05-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141170511","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"数学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Diksha Debbarma, Mustafa M. Mohammed, Binod Chandra Tripathy, Awad A. Bakery
{"title":"Relative Uniform Convergence of Sequence of Functions Related to -Spaces Defined by Orlicz Functions","authors":"Diksha Debbarma, Mustafa M. Mohammed, Binod Chandra Tripathy, Awad A. Bakery","doi":"10.1155/2024/6638662","DOIUrl":"https://doi.org/10.1155/2024/6638662","url":null,"abstract":"The Orlicz function-defined sequence spaces of functions by relative uniform convergence of sequences related to <span><svg height=\"10.2124pt\" style=\"vertical-align:-3.42943pt\" version=\"1.1\" viewbox=\"-0.0498162 -6.78297 7.83752 10.2124\" width=\"7.83752pt\" xmlns=\"http://www.w3.org/2000/svg\" xmlns:xlink=\"http://www.w3.org/1999/xlink\"><g transform=\"matrix(.013,0,0,-0.013,0,0)\"></path></g></svg>-</span>absolutely summable spaces are a new concept that is introduced in this article. We look at its various attributes, such as solidity, completeness, and symmetry. We also look at a few insertional connections involving these spaces.","PeriodicalId":15840,"journal":{"name":"Journal of Function Spaces","volume":"73 1","pages":""},"PeriodicalIF":1.9,"publicationDate":"2024-04-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140600256","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"数学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"A Modified Iterative Approach for Fixed Point Problem in Hadamard Spaces","authors":"Asifa Tassaddiq, Wakeel Ahmed, Shahid Zaman, Asma Raza, Usman Islam, Kwara Nantomah","doi":"10.1155/2024/5583824","DOIUrl":"https://doi.org/10.1155/2024/5583824","url":null,"abstract":"The role of iterative algorithms is vital in exploring the diverse domains of science and has proven to be a powerful tool for solving complex computational problems in the most trending branches of computer science. Taking motivation from this fact, we develop and apply a modified four-step iterative algorithm to solve the fixed point problem in the Hadamard spaces using a total asymptotic nonexpansive mapping. MATLAB R2018b is used for numerical experiments to ensure a better convergence rate of the proposed iterative algorithm with existing results.","PeriodicalId":15840,"journal":{"name":"Journal of Function Spaces","volume":"24 1","pages":""},"PeriodicalIF":1.9,"publicationDate":"2024-03-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140154443","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"数学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Naimark-Type Results Using Frames","authors":"Raksha Sharma, Nikhil Khanna","doi":"10.1155/2024/8588361","DOIUrl":"https://doi.org/10.1155/2024/8588361","url":null,"abstract":"In this article, a modified version of frame called frame associated with a sequence of scalars (FASS) is defined. This modified version of frame is used to study quantum measurements. Also, using FASS, some Naimark-type results are obtained. Finally, a formula to give the average probability of an incorrect measurement using FASS is obtained.","PeriodicalId":15840,"journal":{"name":"Journal of Function Spaces","volume":"70 1","pages":""},"PeriodicalIF":1.9,"publicationDate":"2024-02-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139920474","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"数学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Oqlah Al-Refai, Ala Amourah, Tariq Al-Hawary, Basem Aref Frasin
{"title":"A New Method for Estimating General Coefficients to Classes of Bi-univalent Functions","authors":"Oqlah Al-Refai, Ala Amourah, Tariq Al-Hawary, Basem Aref Frasin","doi":"10.1155/2024/9889253","DOIUrl":"https://doi.org/10.1155/2024/9889253","url":null,"abstract":"This study establishes a new method to investigate bounds of <span><svg height=\"12.5794pt\" style=\"vertical-align:-3.29107pt\" version=\"1.1\" viewbox=\"-0.0498162 -9.28833 18.1261 12.5794\" width=\"18.1261pt\" xmlns=\"http://www.w3.org/2000/svg\" xmlns:xlink=\"http://www.w3.org/1999/xlink\"><g transform=\"matrix(.013,0,0,-0.013,0,0)\"></path></g><g transform=\"matrix(.013,0,0,-0.013,3.419,0)\"></path></g><g transform=\"matrix(.0091,0,0,-0.0091,9.412,3.132)\"></path></g><g transform=\"matrix(.013,0,0,-0.013,14.559,0)\"><use xlink:href=\"#g113-9\"></use></g></svg>;</span> <span><svg height=\"11.5564pt\" style=\"vertical-align:-2.26807pt\" version=\"1.1\" viewbox=\"-0.0498162 -9.28833 22.3 11.5564\" width=\"22.3pt\" xmlns=\"http://www.w3.org/2000/svg\" xmlns:xlink=\"http://www.w3.org/1999/xlink\"><g transform=\"matrix(.013,0,0,-0.013,0,0)\"></path></g><g transform=\"matrix(.013,0,0,-0.013,4.498,0)\"></path></g><g transform=\"matrix(.013,0,0,-0.013,14.669,0)\"></path></g></svg><span></span><span><svg height=\"11.5564pt\" style=\"vertical-align:-2.26807pt\" version=\"1.1\" viewbox=\"25.8821838 -9.28833 11.235 11.5564\" width=\"11.235pt\" xmlns=\"http://www.w3.org/2000/svg\" xmlns:xlink=\"http://www.w3.org/1999/xlink\"><g transform=\"matrix(.013,0,0,-0.013,25.932,0)\"></path></g><g transform=\"matrix(.013,0,0,-0.013,32.458,0)\"></path></g></svg>,</span></span> for certain general classes of bi-univalent functions. The results include a number of improvements and generalizations for well-known estimations. We also discuss bounds of <svg height=\"15.535pt\" style=\"vertical-align:-3.9436pt\" version=\"1.1\" viewbox=\"-0.0498162 -11.5914 64.2012 15.535\" width=\"64.2012pt\" xmlns=\"http://www.w3.org/2000/svg\" xmlns:xlink=\"http://www.w3.org/1999/xlink\"><g transform=\"matrix(.013,0,0,-0.013,0,0)\"><use xlink:href=\"#g113-9\"></use></g><g transform=\"matrix(.013,0,0,-0.013,3.419,0)\"><use xlink:href=\"#g113-111\"></use></g><g transform=\"matrix(.013,0,0,-0.013,9.945,0)\"><use xlink:href=\"#g113-98\"></use></g><g transform=\"matrix(.0091,0,0,-0.0091,16.525,-5.741)\"></path></g><g transform=\"matrix(.0091,0,0,-0.0091,15.938,3.784)\"></path></g><g transform=\"matrix(.013,0,0,-0.013,24.377,0)\"></path></g><g transform=\"matrix(.013,0,0,-0.013,34.914,0)\"><use xlink:href=\"#g113-98\"></use></g><g transform=\"matrix(.0091,0,0,-0.0091,40.907,3.132)\"><use xlink:href=\"#g50-51\"></use></g><g transform=\"matrix(.0091,0,0,-0.0091,45.339,3.132)\"><use xlink:href=\"#g50-111\"></use></g><g transform=\"matrix(.0091,0,0,-0.0091,49.998,3.132)\"></path></g><g transform=\"matrix(.0091,0,0,-0.0091,55.558,3.132)\"></path></g><g transform=\"matrix(.013,0,0,-0.013,60.559,0)\"><use xlink:href=\"#g113-9\"></use></g></svg> and consider several corollaries, remarks, and consequences of the results presented in this paper.","PeriodicalId":15840,"journal":{"name":"Journal of Function Spaces","volume":"130 1","pages":""},"PeriodicalIF":1.9,"publicationDate":"2024-02-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139764124","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"数学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}