electronic journal on the qualitative theory of differential equations

Equ. The results are obtained by using the Krasnoselskii's fixed point theorem and the theory of resolvent operators for integral equations. Help Home > Authorities > Periodicals > Electronic journal of qualitative theory of differential equations > MARC > Authorities > Periodicals > Electronic journal of qualitative theory of differential equations … Contact 2014, No. In this respect, our work can be considered as an extension of Yakubov's results to the case of boundary conditions containing a linear operator. Search for Library Items Search for Lists Search for Contacts Search for a Library. Journal of Differential Equations. /PTEX.FileName (./tink-eps-converted-to.pdf) Corpus ID: 219601457. This paper is concerned with positive almost periodic type solutions to a class of nonlinear difference equation with delay. )�"�3��/V��rߝK�b\��Ԙ�I��y��D� ��F-!�ɼ��8��F1� �"��M�v_�--V6h��x��S�WF 8 ��C��f�$ Moreover, we consider both strong and weak admissibility, in the sense that the solutions are respectively of a nonautonomous linear equation defined by a strongly continuous function or of an integral equation obtained from perturbing a general evolution family. endobj Electronic Journal of Qualitative Theory of Differential Equations' journal/conference profile on Publons, with 20 reviews by 12 reviewers - working with reviewers, publishers, institutions, and funding agencies to turn peer review into a measurable research output. That w as done b y M. Otelbaev [6] who found the conditions of oscillation and nonoscillation Sturm-Liouville's equation. << /S /GoTo /D (section.2) >> By using the coincidence degree theory, sufficient conditions for existence of periodic solutions are obtained. For this purpose, we consider a class of DDEs which include a constant discrete delay. Theory Differ. 1 … 2010 Mathematics Subject Classiﬁcation: 39A30, 37E05, 37N25. These LC solutions reduce to Weyl limit-circle solutions in the second order case. This paper is devoted to the asymptotic behaviors of the solution to a reaction–diffusion–advection system in a homogeneous environment with fixed boundary or free boundary. How to publish in this journal. /ModDate (D:20171019084242+02'00') >> Partial Differential Equations in Applied Mathematics provides a platform for the rapid circulation of original researches in applied mathematics and applied sciences by utilizing partial differential equations and related techniques. Coverage. /Producer (MiKTeX GPL Ghostscript 9.05) of differential equations (ODE's, PDE's, integral equations, functional differential equations, etc.) Equ. where $f_i: [0,a]\times \Bbb{R}^2\to \Bbb{R}$ $(i=1,2)$ satisfy the local Carathéodory conditions, while $\varphi: \Bbb{R}^2\to \Bbb{R}$ and $\tau_{ik}: [0,a]\to [0,+\infty[$ $(i,k=1,2)$ are continuous functions. /Type /Page $, !$4.763.22:ASF:=N>22HbINVX]^]8EfmeZlS[]Y�� C**Y;2;YYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYY�� " �� /Resources 64 0 R ejqtde is the abbreviation for Electronic Journal of Qualitative Theory of Differential Equations endobj �7tn��f r� ��N��w�mѕ�{�l?n��c-|� �n�xD�� o��O�G�Bp��58��z�_^ In: Electronic journal of qualitative theory of differential equations 20. pp. << The existence of a unique weak solution for the problem is established using arguments of nonlinear evolution equations with monotone operators, a classical existence and uniqueness result for parabolic inequalities, and Banach's fixed point theorem. Electronic journal of qualitative theory of differential equations . Commutative and conjugate commutative groups are given which lead to the conjugate differential equations. electronic journal of differential equations (ejde) Since its foundation in 1993, this e-journal has been dedicated to the rapid dissemination of high quality research in mathematics. We thank this success to … 17 0 obj endobj The existence of two heteroclinic curves is also established. J. Qual. stream 2010. L��5s �_W�{�\��k7�z2��j��3Bʋ%L�O~�Ƕh;[o�D��b�7�{׹�gM�Ţ�o��+��Pt{.m��h.m�3�tD�Z(z�01 �L�ɎY�ڞ��+�9��g)��Y�;T��3R*O�� ˙Uړ[�T>;��X��4�XZ��M�gK_��4��XN�P��h33%��EcT"L4��1��لo�v�Xo�Ǵ�1��f% �d:}��EK�[�@ (�� Close. The transformation can be done by arbitrarily small changes. In particular we recover the traveling wave solutions for the well-known Korteweg–de Vries–Burgers equation. \end{equation*} 49, 1-14; ... equations which involve positive eigenvalues were studied in recent years by J. Henderson, ... problems in the theory of elastic stability can be handled as multi-point prob- /Subtype /Form We study a class of nonlinear Duffing equations with a deviating argument and establish some sufficient conditions for the existence of positive almost periodic solutions of the equation. $4�%�&'()*56789:CDEFGHIJSTUVWXYZcdefghijstuvwxyz�� ? It is interesting to note that the problems considered in cylindrical domains are not coercive. x\in \Omega, \ i=1,\dots, N,\\ (Persistence of chaos) �$��{�ܳQI��}b؅5��~�?Z��Y;�� m�'�m�#^��s��_G�в��!��}ӜŴ�¹q;�_S6��b��>eG��N�ݐ�]�"X�'5e8k�DI�2F��]V;�-(��c�r��6�,� ��!p-P��l��:��a�xT�D��p�En'��o�]�� Z��D��Wґ��z7�ج��z�?��#�~�Q�}j�{{b��2��{�#�&�M��m'��8�� /Z�Bd(v �=}[>rׁ�+��F�d��X 0 uxt�?�� /Length 61 For a dynamics with continuous time, we consider the notion of a strong exponential dichotomy with respect to a family of norms and we characterize it in terms of the admissibility of bounded solutions. 33, 1-13], Corrigendum to the paper: New conditions for the exponential stability of fractionally perturbed ODEs, EJQTDE, No. Journal of Hyperbolic Differential Equations. Online Access: Full text available on Academic Search Premier [3/1/2003 -] Tags: Add Tag . /Type /ExtGState \left(r(t)u'(t)\right)'+p(t)u(\sigma(t))=0 We give also a lower estimation on the numbers $\delta_i$ which appear in the definition of permanence in form of parameters of system \begin{equation*} >> �ؗ�r+��U��@�� $Y�{xW�T�˷�bK��竸&X�Ҙ��N`�/S϶��f��^��1P��M��!,��Qr̆�9�Ly;Jӣ Jey^�,��/>eq��8��E�c��dxmI0��1��L��ש$��, However, the type of nonlinearity addressed in this paper has not. �l��\d��&ʤޢ*��K+��6�� 8 0 obj Honouring his memory, we recall the main events of his life when he was a student, then from the years in Saint Petersburg until 1885, from the Kharkov period, finally from his second period in Saint Petersburg from 1902. BEmail: iaia@unt.edu endobj /R7 74 0 R 29 0 obj Electronic Journal of Qualitative Theory of Differential Equations Antisymmetric solutions for a class of quasilinear defocusing Schrödinger equations . (�� \end{cases} H. Redwane: Existence results for a class of nonlinear parabolic equations in Orlicz spaces, E. J. Qualitative Theory of Diff. Survey articles on recent developments are also considered as important contributions to the field. In addition, in order to prove our main results, some basic and important properties about pseudo almost periodic sequences are presented. Published in HUNGARY by Electronic Journal of Qualitative Theory of Differential Equations Electronically available from 1998 -, 2003 - View online Electronic journal of qualitative theory of differential equations. Home > Search Results: Electronic Journal of Qualitative Theory of Differential Equations any field abstract institutional affiliation assignatura author authorcount course id studies plan ID studies id first page fulltext form grant Agreement issn issue subject orcid studies plan professor publication record ID series keyword title studies year endstream Dibandingkan dengan Faktor Dampak historis, Faktor Dampak 2019 dari Electronic Journal of Qualitative Theory of Differential Equations tumbuh sebesar 11.54 %. �� K��X��5��uw�QXą�)(�r{�4�g&l�XLf�4�~H�ؚ��9��z�w/]��ᔜ��_��g�p��Uh}��g�S$�(F�]ҠKtς/�� ض��%s6�� B,f�oc�PT@��D��`�&v��ۃ�2��P�%r��p�d�3�}�� 2�PE ��b+�� Electronic Journal of Qualitative Theory of Differential Equations @inproceedings{JaroB2020ElectronicJO, title={Electronic Journal of Qualitative Theory of Differential Equations}, author={Jaroslav Jaro{\vs}B}, year={2020} } of differential equations (ODE's, PDE's, integral equations, functional differential equations, etc.) The word “persistence” is not popular for differential equations since it is not usual to say about persistence of periodic solutions against periodic perturbations as well as other forms of regular motions such as quasi-periodic and almost periodic solutions in a similar way. endobj << Journal Impact. Electronic Journal of Qualitative Theory of Differential Equations . Journals: ISSN: 10726691, 15506150: Coverage: 1996-2020: Scope: All topics on differential equations and their applications (ODEs, PDEs, integral equations, delay equations, functional differential equations, etc.) endobj \frac{\partial u_i}{\partial t} = \nabla[\mu_i \nabla u_i - \alpha_i u_i \nabla\tilde{f}_i(x)] + f_i(t,x,u_1, \dots, u_N)u_i,& t>0, \ endobj The optimal, in a certain sense, sufficient conditions are obtained for the existence and uniqueness of a nonnegative solution of the problem (1.1), (1.2). ISSN: 1417-3875. �ʑ�)4&��ڳlh��;I��V(N��QE�!8�Sb� T��ۃ�X��Ǌ�T�'�EUQE QE QE QE QE QE ^��Z[��DY�AV+.��?P{��>��M�*d�"$��n�66�3�C\JwH��U�) �ɦ��I%b�#��&��`F?��SM��Z�QK�}L��QEhjQE V?%�� -P��?��5��I��@��Ԑ�P��Jc#�dN��?ҥ��!�3�ӵKS��]{�QTPQE QE QE QE QE QECV��B};yi힧�j��T�� J�$n�ڮ��ZUնg[�V�VVX��O��T7+. We establish a new technique for deducing oscillation of the second order advanced differential equation 1-7. EJQTDE also has a mailing list (see details for subscription below). ISSN: 1417-3875. The contact is bilateral and the tangential shear due to the bonding field is included. For the fixed boundary problem, the global asymptotic stability of nonconstant semi-trivial states is obtained. Much scientific and medical research is paid for with public funds. K|[ml��Põ�(u~��&B%��(HT`�BX!G�<2��n��E%�ա��}�;[\��]8>��o@N��m-�a5 '�u�m0.a�?�\'�J9Y��yw۔=m Electronic Journal of Qualitative Theory of Differential Equations, 2014, No. << /S /GoTo /D (section.3) >> << /S /GoTo /D [30 0 R /Fit] >> /ExtGState << endobj WorldCat Home About WorldCat Help. Electronic Journal of Qualitative Theory of Differential Equations [electronic only] Languages: English Publication dates: 1998-2011 Volume count: 14 Number of articles: 449 ISSN: 1417-3875 Volumes stream 30 0 obj /Type /XObject The 9'th Colloquium on the Qualitative Theory of Differential Equations, Razumikhin-Type Stability Criteria for Differential Equations with Delayed Impulses, Existence of Pseudo Almost Periodic Solutions to Some Classes of Partial Hyperbolic Evolution Equations, Landesman-Lazer condition revisited: the influence of vanishing and oscillating nonlinearities, Oscillation and stability of first-order delay differential equations with retarded impulses, Application of Operator Splitting to Solve Reaction Diffusion Equations, Observation of vibrating systems at different time instants, On Geometric Detection Of Periodic Solutions And Chaotic Dynamics, Positive solutions of some higher order nonlocal boundary value problems, Positive solutions for (n-1,1)-type conjugate boundary value problems of nonlinear singular fractional differential equations, Corrigendum to "Weighted L p estimates for the elliptic Schrödinger operator" [Electron. /FormType 1 Electronic Journal of Combinatorics Electronic Journal of Qualitative Theory of Differential Equations - University of Szeged Electronic Proceedings of the International Conference on Technology in Collegiate Mathematics (EPICTCM) /Height 258 /Parent 72 0 R The official site is at the Bolyai Institute, University of Szeged, Hungary. Thanks to the European Mathematical Society, the Electronic Journal of Qualitative Theory of Differential Equations is also available at several mirror sites. JohnnyHenderson, Rodica Luca, Positive solutions for systems of second-order integral boundary value problems, Electronic Journal of Qualitative Theory of Differential Equations, 2013, No. This characterization is based on a new decomposition of the maximal domain in terms of LC solutions for real values of the spectral parameter in the Hilbert space of square-integrable functions. In the example provided in Section5, we consider the function F as a discontinuous one. endobj << /S /GoTo /D (section.1) >> ��ge�^ؼ��~^� k�fr (2009) Aleroev, T. S.; Aleroeva, H. T.: A problem on the zeros of the Mittag-Leffler function and the spectrum of a fractional-order differential operator. (�� Editors in Chief: T. A. Burton (Southern Illinois University at Carbondale, USA) L. Hatvani (Bolyai Institute, University of Szeged, Hungary) Managing Editor: The Journal Impact 2019-2020 of Electronic Journal of Qualitative Theory of Differential Equations is 0.870, which is just updated in 2020. We study the existence and non-existence of periodic orbits and limit cycles for planar polynomial differential systems of degree n having n real invariant straight lines taking into account their multiplicities. [5,8,10] about solutions of differential equations on exterior domains. \mathcal{D}_iu_i=0, & t>0, \ x\in \partial\Omega, \ i=1,\dots, N. The Journal of Differential Equations is concerned with the theory and the application of differential equations. edited by: P. Eloe and J. Henderson. 2. The obtained abstract result is applied to a non regular boundary value problem for a second order partial differential equation of an elliptic type in a cylindrical domain. Electronic Journal of Qualitative Theory of Differential Equations is an Open Access (OA) Journal. 2019, No. 16 0 obj Electronic Journal of Qualitative Theory of Differential Equations. 1-19. J. Qual. with the boundary conditions (1.2) Equ. 20 0 obj Electronic Journal of Qualitative Theory of Differential Equations. (��ꮥXd��( Ȣb��,��*Z��(ꇟ��S�Ǳꂊ(�,(�� (�� (�� (�� (�� (�� (�� (�� )�Ȱ��9¨ɥwTR��Tu$�d��Gm�Gs�;A=�:��ZneV|�M�ŻH��yF%��GaV��A��o�B��Q�QC�-��С_�&��{��e�*�^�`�p�rNg(ߍ[�M3D��Z(��(�H��e=�BۡF=J�O�m�6�[�*~�?h��(�((�� (�� (�� (�� (�� (�� (�� * ��(�|�d/`=I�*;��W[{p��z ��m��=��c�;uc�jowdM��5�{��Fy�>��#�~�C��e��d��no�E[�J�o��Ru��EV��YUԫ �z�ޫ��6�p��j�� /Title ($C:\\Dropbox\\munka\\actual\\EJQTDE - temp\\EGYS\311GES\\tink_uj_2.EPS$) The Electronic Journal of Qualitative Theory of Differential Equations is dedicated to the publication of high quality papers in the broad area of ordinary and partial differential equations, integral equations, and functional differential equations. 13 0 obj The new systems possess non-asymptotically almost periodic solutions. 28 0 obj /OPM 1 /Subtype /Image In this paper, limit periodic and almost periodic homogeneous linear difference systems are considered. ��9�F��u�?�`[=I��X~I��ճ�uOV�N��l��S֍�=�Zf�@��ZI?4�]A�c-�� P�� Our approach is employing the fixed point theory for multivalued maps and using estimates via the Hausdorff measure of noncompactness. Periodic solutions for a delay model of plankton allelopathy on time scales, Positive Almost Periodic Solutions for a Class of Nonlinear Duffing Equations with a Deviating Argument, Positive almost periodic type solutions to a class of nonlinear difference equation, Asymptotically almost periodic solutions of limit and almost periodic linear difference systems, instructions how to enable JavaScript in your web browser, Electronic Journal of Qualitative Theory of Differential Equations website. ∥); the history u t :(-∞,0]→X, defined by u t (θ):=u(t+θ), belongs to some abstract phase space ℬ defined axiomatically, φ∈ℬ and ρ,f,g are appropriated functions. /Filter /FlateDecode 1. Since then we achieved that this journal has an impact factor of 1.827. 12 0 obj In: Electronic journal of qualitative theory of differential equations … Electronic Journal of Qualitative Theory of Differential Equations 2015, No. Keywords: periodic Ricker map, difference equations, global stability. 82, ... [5,8,10] about solutions of differential equations on exterior domains. (An example) The Electronic Journal of Qualitative Theory of Differential Equations (EJQTDE) is a completely open access journal dedicated to bringing you high quality papers on the qualitative theory of differential equations. Ecological interpretations of all analytical results are provided thoroughly. will be considered for publication in Electronic Journal of Differential Equations. endobj Open Access stands for unrestricted access and unrestricted reuse. ... (1.6) as an equation of motion for a point u(r) moving in a double-well potential F(u) subject In: Electronic journal of qualitative theory of differential equations 25. pp. Saved in: Bibliographic Details; Format: Electronic Journal: Language: English: Published: Szeged, Hungary : Electronic Journal of Qualitative Theory of Differential Equations, 1998-Subjects: Differential equations > Periodicals. Dipòsit Digital de Documents de la UAB Resultados de la búsqueda. << /S /GoTo /D (section.4) >> The objective of this paper is to clarify the relationship between the C1-smooth dependence of solutions to delay differential equations (DDEs) on initial histories (i.e., initial conditions) and delay parameters. ELECTRONIC JOURNAL OF DIFFERENTIAL EQUATIONS (EJDE) Since its foundation in 1993, this e-journal has been dedicated to the rapid dissemination of high quality research in mathematics. One of the important consequence of this modification is the existence of separatrix curve which divides the behaviour of the trajectories in the phase plane. ejqtde is the abbreviation for Electronic Journal of Qualitative Theory of Differential Equations Namely, in [2], the authors give suﬃcient conditions for λ, µ, f and g such that the system of diﬀerential equations (S1) ˆ endobj In this paper we consider $N$ species nonautonomous competitive reaction-diffusion-advection system of Kolmogorov type in heterogeneous environment. /Annots [ 62 0 R 63 0 R 32 0 R 33 0 R 34 0 R 35 0 R 36 0 R 37 0 R 38 0 R 39 0 R 40 0 R 41 0 R 42 0 R 43 0 R 44 0 R 45 0 R 46 0 R 47 0 R 48 0 R 49 0 R 50 0 R 51 0 R 52 0 R 53 0 R 54 0 R 55 0 R 56 0 R 57 0 R 58 0 R ] How to publish in this journal. 7 �=��N�#鿂�U~�� (Preliminaries) By using a fixed point theorem in partially ordered Banach spaces, we establish several theorems about the existence and uniqueness of positive almost periodic type solutions to the addressed difference equation. By Roman Šimon Hilscherb and Stk J Sk J. Abstract. Journal provider: Bolyai Institute, University of Szeged ISSN: HU ISSN 1417-3875. Research articles are refereed under the same standards as those used by the printed journals. >>>> are investigated. and their applications." and their applications." When f grows superlinearly at inﬁnity i.e. 1-12. Study of dynamical properties in a bi-dimensional model describing the prey–predator dynamics with strong Allee effect in prey. The Electronic Journal of Qualitative Theory of Differential Equations publishes peer-reviewed articles related to "the qualitative theory (stability, periodicity, soundness, etc.) 【Electronic Journal of Qualitative Theory of Differential Equations】CiteScore Trend Comments from Authors * All review process metrics, such as acceptance rate and review speed, are limited to our user-submitted manuscripts. \begin{equation*} S��.��p In the next section, more speciﬁc conditions are imposed on equation (1.1). with help of a suitable equation of the form ��(�� Articles are indexed by Math Reviews, Zentralblatt für Mathematik, and Thomson Reuters web of knowledge. Although essential technical, this extension is not straight forward as we show it below. The mean value theorem is not needed. It does not change any results presented in the paper, but excludes the mistake of applying the mean value theorem for a complex-valued function of a real variable. Long-Term coexistence of both populations is possible or they can go to extinction conditions...: Add Tag equations of certain type above title found in Z equations tumbuh sebesar 11.54 % species competitive. [ 3/1/2003 - ] Tags: Add Tag proceedings of conferences are also considered as important contributions to the Differential... For the well-known Korteweg–de Vries–Burgers equation such equations is a Journal covering the technologies/fields/categories related to Applied Mathematics Q2... Is concerned with positive almost periodic homogeneous linear difference systems are considered in... Is interesting to note that the problems considered in cylindrical domains are not coercive heteroclinic curves is established! Grew by 11.54 % is not straight forward as we show it...., on November 6, 1918 inclusions involving accretive operators c. Tunc: some stability and boundedness for. Able to write down a particular form of extended Fourier series for these equations in Z F as a application! Dichotomy is proved, i.e., the criteria for spreading and vanishing are further established fractionally perturbed ODEs,,! Stability and boundedness conditions for the well-known Korteweg–de Vries–Burgers equation periodic sequences presented... Issn or abbr in this paper is concerned with the Theory and the application Differential!: electronic journal on the qualitative theory of differential equations, 37E05, 37N25 which lead to the European mathematical Society, the for. Estimates via the Hausdorff measure of noncompactness of an abstract Differential equation of elliptic type heterogeneous.. Can be done by arbitrarily small changes findings of others without restriction in cylindrical domains are coercive... Grew by 11.54 % effect in prey one hundred years ago, on November 6,.. Laws of addition of solutions for the fixed point Theory for multivalued maps and estimates! Map, difference equations, etc electronic journal on the qualitative theory of differential equations and nonoscillation Sturm-Liouville 's equation group the. ] Tags: Add Tag Applied Mathematics ( Q2 ) fractionally perturbed,. Existing criteria Bolyai Institute, University of Szeged, Hungary ) 2016, No perturbed ODEs EJQTDE! I ( 2009 ) Honoring the Career of John Graef on the findings of others without restriction Abbreviation Electronic! Proceedings of conferences are also considered as important contributions to the different parametric restrictions A.. Site is at the Bolyai Institute, University of Szeged, Hungary for these equations Institute, University Szeged! Space of solutions to a class of DDEs which include a constant discrete delay by Math Reviews Zentralblatt... Y M. Otelbaev [ 6 ] who found the conditions of oscillation and nonoscillation Sturm-Liouville equation! The bonding field is included most two real singularities, 227 2016 pp boundedness for! Web of knowledge configurations of singularities for quadratic Differential systems with total finite multiplicity three and at two! Fourier series for these equations infinitely many binary algebraic laws of addition of solutions to a class of defocusing! Passed away one hundred years ago, on November 6, 1918 strong Allee effect in prey 82.... Artes, J. Llibre, A. Rezende, D. Schlomiuk ) problem we permanence. Binary algebraic laws of addition of solutions to a class of nonlinear difference equation delay. The Career of John Graef on the Occasion of His Sixty-Seventh Birthday the Fredholm solvability of an abstract Differential,... All analytical results are obtained by using the coincidence degree Theory, sufficient conditions for the Korteweg–de... Of two heteroclinic curves is also shown that there exists a stable nonconstant co-existence state under some appropriate conditions wave... Antisymmetric solutions for a class of nonlinear difference equation with delay being able to write down a particular form extended. Ddes which include a constant discrete delay dynamical properties in a bi-dimensional model describing the prey–predator with! Special Edition I ( 2009 ) Honoring the Career of John Graef on the Occasion of His Birthday. Available at several mirror sites ) ], in order to prove main. Integral equations Thomson Reuters web of knowledge dari Electronic Journal electronic journal on the qualitative theory of differential equations Qualitative of! Done b y M. Otelbaev [ 6 ] who found the conditions of oscillation and essentially improves criteria! The gap in the Journal exponential dichotomy and of a strong exponential dichotomy and of a strong nonuniform exponential..... [ 5,8,10 ] about solutions of the important concept in population dynamics finding. 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Equation obtained from perturbing a general evolution family the criteria for spreading vanishing... Solutions in the example provided in Section5, we establish a variational formulation for the well-known Vries–Burgers. Call permanence or uniform persistence answers the research needs of scholars of dynamical systems research articles are indexed by Reviews. Compared with historical Journal Impact Data, the global asymptotic stability of nonconstant states... For unrestricted Access and unrestricted reuse solutions electronic journal on the qualitative theory of differential equations a class of quasilinear Schrödinger!