Pub Date : 2019-12-01DOI: 10.24193/mathcluj.2019.2.04
D. Kamburova, R. Marinov
{"title":"Cournot equilibrium in case of (-1)-concave price function","authors":"D. Kamburova, R. Marinov","doi":"10.24193/mathcluj.2019.2.04","DOIUrl":"https://doi.org/10.24193/mathcluj.2019.2.04","url":null,"abstract":"","PeriodicalId":39356,"journal":{"name":"Mathematica","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2019-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"45758576","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2019-12-01DOI: 10.24193/mathcluj.2019.2.07
Anil Sharma, S. Srivastava
{"title":"Non-existence of PR-pseudo-slant warped product submanifolds of paracosymplectic manifolds","authors":"Anil Sharma, S. Srivastava","doi":"10.24193/mathcluj.2019.2.07","DOIUrl":"https://doi.org/10.24193/mathcluj.2019.2.07","url":null,"abstract":"","PeriodicalId":39356,"journal":{"name":"Mathematica","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2019-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"46221214","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2019-11-11DOI: 10.24193/mathcluj.2020.1.08
A. Mărcuş, Virgilius-Aurelian Minuță
We prove a group graded Morita equivalences version of the "butterfly theorem" on character triples. This gives a method to construct an equivalence between block extensions from another related equivalence.
{"title":"Group graded endomorphism algebras and Morita equivalences","authors":"A. Mărcuş, Virgilius-Aurelian Minuță","doi":"10.24193/mathcluj.2020.1.08","DOIUrl":"https://doi.org/10.24193/mathcluj.2020.1.08","url":null,"abstract":"We prove a group graded Morita equivalences version of the \"butterfly theorem\" on character triples. This gives a method to construct an equivalence between block extensions from another related equivalence.","PeriodicalId":39356,"journal":{"name":"Mathematica","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2019-11-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"44880769","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2019-11-04DOI: 10.24193/mathcluj.2021.2.10
M. A. Hammou
In this paper, we prove the existence of a weak solution for the Dirichlet boundary value problem related to a certain p(x)-Laplacian, by using the degree theory after turning the problem into a Hammerstein equation. The right hand side is a possibly discontinuous function in the second variable satisfying some non-standard growth conditions.
{"title":"Dirichlet boundary value problem related to the p(x)-Laplacian with discontinuous nonlinearity","authors":"M. A. Hammou","doi":"10.24193/mathcluj.2021.2.10","DOIUrl":"https://doi.org/10.24193/mathcluj.2021.2.10","url":null,"abstract":"In this paper, we prove the existence of a weak solution for the Dirichlet boundary value problem related to a certain p(x)-Laplacian, by using the degree theory after turning the problem into a Hammerstein equation. The right hand side is a possibly discontinuous function in the second variable satisfying some non-standard growth conditions.","PeriodicalId":39356,"journal":{"name":"Mathematica","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2019-11-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"49581359","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2019-06-30DOI: 10.24193/MATHCLUJ.2019.1.08
B. Venkateswarlu, P. Reddy, N. Rani, Modavalasa Visakhapatnam A. P. India Humanities
{"title":"Certain subclass of meromorphically uniformly convex functions with positive coefficients","authors":"B. Venkateswarlu, P. Reddy, N. Rani, Modavalasa Visakhapatnam A. P. India Humanities","doi":"10.24193/MATHCLUJ.2019.1.08","DOIUrl":"https://doi.org/10.24193/MATHCLUJ.2019.1.08","url":null,"abstract":"","PeriodicalId":39356,"journal":{"name":"Mathematica","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2019-06-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"42295233","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2019-06-30DOI: 10.24193/MATHCLUJ.2019.1.02
Abdelkader Benzidane, H. Yaldiz, Z. Dahmani
In this paper, using fractional integration, we present new fractional integral inequalities related to Holder inequality. We generalise a Wu’s sharpness of Holder inequality for p, q integration. Then, as an application, we propose another way to derive the Holder inequality which is already established by Z. Dahmani on 2012 in General Math. Journal. Also, for our results, the classical Holder inequality is deduced as a special case. MSC 2010. 26D15, 26A33, 60E15.
{"title":"New integral results on Holder type inequalities","authors":"Abdelkader Benzidane, H. Yaldiz, Z. Dahmani","doi":"10.24193/MATHCLUJ.2019.1.02","DOIUrl":"https://doi.org/10.24193/MATHCLUJ.2019.1.02","url":null,"abstract":"In this paper, using fractional integration, we present new fractional integral inequalities related to Holder inequality. We generalise a Wu’s sharpness of Holder inequality for p, q integration. Then, as an application, we propose another way to derive the Holder inequality which is already established by Z. Dahmani on 2012 in General Math. Journal. Also, for our results, the classical Holder inequality is deduced as a special case. MSC 2010. 26D15, 26A33, 60E15.","PeriodicalId":39356,"journal":{"name":"Mathematica","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2019-06-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"49011116","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2019-06-30DOI: 10.24193/MATHCLUJ.2019.1.07
M. Sarıkaya, Candan Can Bili̧sik
{"title":"Wirtinger type inequalities for conformable fractional integrals","authors":"M. Sarıkaya, Candan Can Bili̧sik","doi":"10.24193/MATHCLUJ.2019.1.07","DOIUrl":"https://doi.org/10.24193/MATHCLUJ.2019.1.07","url":null,"abstract":"","PeriodicalId":39356,"journal":{"name":"Mathematica","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2019-06-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"46707820","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2019-06-30DOI: 10.24193/MATHCLUJ.2019.1.06
S. Santra
{"title":"Oscillation analysis for nonlinear neutral diferential equation of second order with several delays and forcing term","authors":"S. Santra","doi":"10.24193/MATHCLUJ.2019.1.06","DOIUrl":"https://doi.org/10.24193/MATHCLUJ.2019.1.06","url":null,"abstract":"","PeriodicalId":39356,"journal":{"name":"Mathematica","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2019-06-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"43071999","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2019-06-30DOI: 10.24193/MATHCLUJ.2019.1.01
B. Allahverdiev, H. Tuna
In this article, we investigate the resolvent operator of Sturm-Liouville problem on unbounded time scales. We obtain integral representations for the resolvent of this operator. Later, we discuss some properties of the resolvent operator, such as Hilbert-Schmidt’s kernel property and compactness. Finally, we give a formula for the Titchmarsh-Weyl function of the Sturm-Liouville problem on unbounded time scales. MSC 2010. 34N05, 34L05, 47A10.
{"title":"Some properties of the resolvent of Sturm-Liouville operators on unbounded time scales","authors":"B. Allahverdiev, H. Tuna","doi":"10.24193/MATHCLUJ.2019.1.01","DOIUrl":"https://doi.org/10.24193/MATHCLUJ.2019.1.01","url":null,"abstract":"In this article, we investigate the resolvent operator of Sturm-Liouville problem on unbounded time scales. We obtain integral representations for the resolvent of this operator. Later, we discuss some properties of the resolvent operator, such as Hilbert-Schmidt’s kernel property and compactness. Finally, we give a formula for the Titchmarsh-Weyl function of the Sturm-Liouville problem on unbounded time scales. MSC 2010. 34N05, 34L05, 47A10.","PeriodicalId":39356,"journal":{"name":"Mathematica","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2019-06-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"45536590","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2019-06-30DOI: 10.24193/MATHCLUJ.2019.1.04
Abdelkader Frakis
{"title":"Localization of the eigenvalues of a matrix through its spread","authors":"Abdelkader Frakis","doi":"10.24193/MATHCLUJ.2019.1.04","DOIUrl":"https://doi.org/10.24193/MATHCLUJ.2019.1.04","url":null,"abstract":"","PeriodicalId":39356,"journal":{"name":"Mathematica","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2019-06-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"44006808","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
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