The presented criteria improve and extend previous results in the literature. The polynomial differential systems with n = 1,2,3 are completely characterized. Much scientific and medical research is paid for with public funds. (Persistence of chaos) x\in \Omega, \ i=1,\dots, N,\\ Keywords: periodic Ricker map, difference equations, global stability. Contact (�� equation defined by a strongly continuous function or of an integral equation obtained from perturbing a general evolution family. �.�B�K�����4����:��)����FcR���ݞEw�m�C�9/ʹ�A��1�k�0& �Mp�d������e&�]Lstd�"V �,���,��� endobj 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. EJQTDE also has a mailing list (see details for subscription below). J. Qual. The mean value theorem is not needed. $$ 5 0 obj 12 0 obj In: Electronic journal of qualitative theory of differential equations … $$ ISSN: 1417-3875. >> endobj Commutative and conjugate commutative groups are given which lead to the conjugate differential equations. 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. (�� �� � } !1AQa"q2���#B��R��$3br� )�"�3������/V��rߝK�b\��Ԙ�I��y��D� ��F-!�ɼ���8��F1� �"���M�v_�--V6h����x��S�WF 8 ��C��f�$ Dibandingkan dengan Faktor Dampak historis, Faktor Dampak 2019 dari Electronic Journal of Qualitative Theory of Differential Equations tumbuh sebesar 11.54 %. \mathcal{D}_iu_i=0, & t>0, \ x\in \partial\Omega, \ i=1,\dots, N. Electronic journal of qualitative theory of differential equations . endobj Theory Differ. 2014, No. /BitsPerComponent 8 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. The results are obtained by using the Krasnoselskii's fixed point theorem and the theory of resolvent operators for integral equations. [5,8,10] about solutions of differential equations on exterior domains. 2019, No. Electronic Journal of Qualitative Theory of Differential Equations. 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. 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.) 10th Coll. /Length 61 J. Iaia, "Existence and Nonexistence for Semilinear Equations on Exterior Domains," Electronic Journal of Differential Equations, 227 2016 pp. Publisher: UNIV SZEGED, BOLYAI INSTITUTE, ARADI VERTANUK TERE 1, … 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. In: Electronic journal of qualitative theory of differential equations 28. pp. << /S /GoTo /D (section.3) >> Electronic Journal of Qualitative Theory of Differential Equations. $$ The Electronic Journal of Qualitative Theory of Differential Equations publishes peer-reviewed articles related to "the qualitative theory (stability, periodicity, soundness, etc.) We study a mathematical problem describing the frictionless adhesive contact between a viscoelastic material with damage and a foundation. �@@��n?fՁu;�,���CsD�F^�+4乎#���m_
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�pjc ���S��X���� �wrs"Di>&ϘE�iK,D������-x�D�T����e�ʬm�ζt7M&��1���se\|�慊'�ĕC�/���y���L �'p�J3$�k�$��a�M�s|8e觼 �$8u�%�I���2��WX�#/%��鉇�jX��,���q���X���5Gn͗n��aǛ?Uۂ��c�nq��m?��sB��# y�r a�iz��9D��MO �F~�j�ˊ��$��r�v�"����6��H[#c�jgV�l�-��;��:��#�t�J�?�a3�b=52�� << Electronic Journal of Combinatorics Electronic Journal of Qualitative Theory of Differential Equations - University of Szeged Electronic Proceedings of the International Conference on Technology in Collegiate Mathematics (EPICTCM) (Preliminaries) 1 Introduction A basic question in the qualitative theory of dynamical systems is “under what conditions does 1-21. Electronic Journal of Qualitative Theory of Differential Equations. The authors investigate the algebraic structure of the space of solutions to autonomous nonlinear differential equations of certain type. ���� Adobe d �� C limu!¥ f(u) u = ¥, and W = RN then the prob-lem (1.1), (1.3) has been extensively studied [1–3,7,11]. We establish a variational formulation for the problem and prove the existence and uniqueness of the solution. %PDF-1.5 $$ Theory Differ. << A particular attention is devoted to the fourth order operators with a middle term, for which new (non)oscillation criteria are derived. Articles are indexed by Math Reviews, Zentralblatt für Mathematik, and Thomson Reuters web of knowledge. Besides, the criteria for spreading and vanishing are further established. Journal of Differential Equations. >>>> H. Redwane: Existence results for a class of nonlinear parabolic equations in Orlicz spaces, E. J. Qualitative Theory of Diff. We recount the main fields of his scientific activity (stability theory, potential theory, probability theory, shape of planets) concerning stability theory and chaos in details. Help Home > Authorities > Periodicals > Electronic journal of qualitative theory of differential equations > MARC > Authorities > Periodicals > Electronic journal of qualitative theory of differential equations … ��E������j�E�V�\gwg�b����k^X{SS"2܃(g�1L� ��4C/��dtH:��>kEz�$넞��2S�n��1+��JԗqC��{�U>�ӟ�O�ǁH��KC�/���: �B���@b�')���ޏWo��0���j��2&��D��L~7=��?����p����x? 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. For this purpose, we consider a class of DDEs which include a constant discrete delay. endobj It is interesting to note that the problems considered in cylindrical domains are not coercive. However, the type of nonlinearity addressed in this paper has not. 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. \end{equation*}. The outstanding Russian mathematician Aleksandr M. Lyapunov passed away one hundred years ago, on November 6, 1918. The comparison principle obtained fills the gap in the theory of oscillation and essentially improves existing criteria. /Type /ExtGState Ecological interpretations of all analytical results are provided thoroughly. ejqtde is the abbreviation for Electronic Journal of Qualitative Theory of Differential Equations The Journal of Differential Equations is concerned with the theory and the application of differential equations. Home. The theory of fractional differential equations is an important branch of differential equation theory, which has an extensive physical, chemical, biological, and engineering background, and hence has been emerging as an important area of investigation in the last few decades; see the monographs of Kilbas et al. (2005) Appleby, John A. D.; Devin, Siobhán; Reynolds, David W.: On the exponential convergence to a limit of solutions of perturbed linear Volterra equations. /ExtGState << The Open Access Electronic Journal of Qualitative Theory of Differential Equations is available through World Wide Web and it has a mailing list too. /ModDate (D:20171019084242+02'00') ��ge�^ؼ���~^�
k�fr (Control of chaos) /ColorSpace /DeviceRGB For the fixed boundary problem, the global asymptotic stability of nonconstant semi-trivial states is obtained. /MediaBox [0 0 595.276 841.89] 13 0 obj J. Qual. << /S /GoTo /D (section.5) >> �� �K���X��5���uw�QXą�)(�r{�4�g&l�XLf�4�~H�ؚ������9��z�w/]��ᔜ��_����g�p�������Uh}��g�S$�(F�]ҠKtς/���
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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�� Journal Impact. (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. Electronic Journal of Qualitative Theory of Differential Equations Proc. /Width 226 In: Electronic journal of qualitative theory of differential equations 25. pp. Saved in: Format: Electronic: Language: English: Published: Szeged, Hungary : Electronic Journal of Qualitative Theory of Differential Equations, 1998-Subjects: Differential equations > Periodicals. 17 0 obj Electronic Journal of Qualitative Theory of Differential Equations. << /S /GoTo /D (section.4) >> 33, 1-13], Corrigendum to the paper: New conditions for the exponential stability of fractionally perturbed ODEs, EJQTDE, No. 24 0 obj 28 0 obj /ProcSet [ /PDF /ImageC ] Theory Differ. Namely, in [2], the authors give sufficient conditions for λ, µ, f and g such that the system of differential equations (S1) ˆ Therefore, analysis of qualitative properties of solutions to such equations is crucial for applications. 2010 Mathematics Subject Classification: 39A30, 37E05, 37N25. 73 0 obj /FormType 1 Study of dynamical properties in a bi-dimensional model describing the prey–predator dynamics with strong Allee effect in prey. Therefore long-term coexistence of both populations is possible or they can go to extinction. That w as done b y M. Otelbaev [6] who found the conditions of oscillation and nonoscillation Sturm-Liouville's equation. endobj 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. and their applications." 1-9. Electronic Journal of Qualitative Theory of Differential Equations Antisymmetric solutions for a class of quasilinear defocusing Schrödinger equations . endobj L(y):=\frac{1}{w(t)}\sum_{k=0}^n (-1)^k \left(r_k(t)y^{(k)}\right)^{(k)},\quad r_n(t)>0\, ,w(t)>0, %\tag{L} 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. 31 0 obj /Filter /FlateDecode 74 0 obj endobj
$, !$4.763.22:ASF:=N>22HbINVX]^]8EfmeZlS[]Y�� C**Y;2;YYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYY�� �" �� Electronic Journal of Differential Equations | Citations: 1,397 | Read 128 articles with impact on ResearchGate, the professional network for scientists. 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. 1 … m|J��QEY�QE QE QE QE QE QE QE QE QE QE T2M���#>�=M%��=��7J�(��>��!�3��,ǫ��vFnNO�?1c�&I;��cޤ�����i%� WorldCat Home About WorldCat Help. Open Access stands for unrestricted access and unrestricted reuse. Publication type. endobj JohnnyHenderson, Rodica Luca, Positive solutions for systems of second-order integral boundary value problems, Electronic Journal of Qualitative Theory of Differential Equations, 2013, No. Equ.,No. Oscillation and spectral properties of even order self-adjoint differential operators of the form (2010), pp. 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. \begin{cases} (�� /Resources << For the free boundary problem, the spreading–vanishing dichotomy is proved, i.e., the solution either spreads or vanishes finally. (�� \left(r(t)u'(t)\right)'+q(t)u(t)=0. Keywords: periodic Ricker map, difference equations, global stability. Scope. 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. ∥); 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. /OPM 1 >>/XObject << theory of di eren tial equations. Electronic Journal of Qualitative Theory of Differential Equations 2015, No. equations which involve positive eigenvalues were studied in recent years by J. Henderson, R. Luca, S. K. Ntouyas and I. K. Purnaras, by using the Guo-Krasnosel’skii fixed point theorem. 84 (2018),1–14, Continuous selections for a class of nonconvex multivalued maps, Studia Math (vol 88, pg 1, 2012), Weighted L-p estimates for the elliptic Schrdinger operator (pg 1, 2014), Corrigendum to "A state-dependent delay equation with chaotic solutions" [Electron. 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. This website uses cookies to … ��0�4�O��Ҁw" ��_�Cv�*��9&o�(Z8�Ŷu\rS�y���*k��-\�������q'��{\I): Contributions on analytical and numerical approaches are both encouraged. Electronic journal of qualitative theory of differential equations . Search. /R7 74 0 R Corpus ID: 219601457. Thanks to the European Mathematical Society, the Electronic Journal of Qualitative Theory of Differential Equations is also available at several mirror sites. /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 ] 82, ... [5,8,10] about solutions of differential equations on exterior domains. Special Edition I (2009) Honoring the Career of John Graef on the Occasion of His Sixty-Seventh Birthday. 2010. endstream (Conclusions) C. Tunc: Some stability and boundedness conditions for non-autonomous differential equations with deviating arguments, E. J. Qualitative Theory of Diff. 65 0 obj \left(r(t)u'(t)\right)'+p(t)u(\sigma(t))=0 /Height 258 【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. 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. Close. 1-7. 75 0 obj stream In: Electronic journal of qualitative theory of differential equations 28. pp. Proceedings of conferences are also available in the journal. Compared with historical Journal Impact data, the Metric 2019 of Electronic Journal of Qualitative Theory of Differential Equations grew by 11.54 %. We fix a value of m between 3.84 and 4 such that the map (1.5) is chaotic in the sense endobj In this paper, a delay model of plankton allelopathy is investigated. 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�[�@ Journal of Dynamics and Differential Equations. endobj (�� International Journal of Differential Equations. Although essential technical, this extension is not straight forward as we show it below. The Electronic Journal of Qualitative Theory of Differential Equations (EJQTDE) was founded by T. A. Burton and L. Hatvani in 1998. It is shown that for these equations infinitely many binary algebraic laws of addition of solutions exist. 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. Electronic journal of qualitative theory of differential equations. /Creator (\(ImageMagick\)) endobj Editors in Chief: T. A. Burton (Southern Illinois University at Carbondale, USA) L. Hatvani (Bolyai Institute, University of Szeged, Hungary) Managing Editor: The articles published are addressed not only to mathematicians but also to those engineers, physicists, and other scientists for whom differential equations are valuable research tools. will be considered for publication in Electronic Journal of Differential Equations. Showing 1 - 20 of 1,532 for search: '"Electronic journal of qualitative theory of differential equations"', query time: 2.20s /PTEX.InfoDict 73 0 R Electronic Journal of Qualitative Theory of Differential Equations. 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. �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+. endobj In this paper existence and uniqueness results for an abstract measure delay differential equation are proved, by using Leray-Schauder nonlinear alternative, under Carathéodory conditions. 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. Equ. endobj The Electronic Journal of Qualitative Theory of Differential Equations is a completely open access journal available online. 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. Equ. It is shown that in the space with a moving field, there always exist metric geodesics of which are the solutions to a given differential equation and its conjugate equation. /PTEX.FileName (./tink-eps-converted-to.pdf) Electronic Journal of Qualitative Theory of Differential Equations, 2014, No. In this work, we obtain algebraic conditions which assure the Fredholm solvability of an abstract differential equation of elliptic type. We study the existence and stability of solutions for a class of nonlinear functional evolution inclusions involving accretive operators. Qualitative Theory of Diff. Electronic Journal of Qualitative Theory of Differential Equations 2020, No. %&'()*456789:CDEFGHIJSTUVWXYZcdefghijstuvwxyz��������������������������������������������������������������������������� with help of a suitable equation of the form Numerical simulations are given not only to illustrate the theoretical results, but also to exhibit the advection-induced difference between the left and right boundaries as time proceeds. Homepage. We establish a new technique for deducing oscillation of the second order advanced differential equation >> �� � w !1AQaq"2�B���� #3R�br� K|[ml���Põ�(u~���&B%���(HT`�BX!G�<2���n��E%�ա��}�;[\��]8>��o@N��m-�a5 '�u�m0.a�?�\'�J9Y�����yw۔=m This paper is concerned with positive almost periodic type solutions to a class of nonlinear difference equation with delay. x�+T0�3T0 A(��˥d��^�U�`h`a�g642��3�3 3C�R�|�@ Electronic Journal of Qualitative Theory of Differential Equations. ... (1.6) as an equation of motion for a point u(r) moving in a double-well potential F(u) subject 2. /Subtype /Image 1-7. |2 DE-600 |a Electronic journal of qualitative theory of differential equations |b EJQTDE |c Bolyai Institute, University of Szeged |h online: 246: 3 _ |2 DE-600 |a Electronic journal of qualitative theory of differential equations: 246: 3 _ |a Qualitative theory of differential equations: 246: 3 _ Create lists, bibliographies and reviews: or Search WorldCat. 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.) stream 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. 1-12. Journal Abbreviation: ELECTRON J QUAL THEO Journal ISSN: 1417-3875. /CreationDate (D:20171019084242+02'00') 20 0 obj The overall rank of Electronic Journal of Qualitative Theory of Differential Equations is 9824. 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. 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} } Applying Ahmad and Lazers definitions of lower and upper averages of a function and using the sub- and supersolution methods for PDEs we give sufficient conditions for permanence in such models. 1 0 obj ��(�� The official site is at the Bolyai Institute, University of Szeged, Hungary. 4 0 obj << /S /GoTo /D [30 0 R /Fit] >> %���� ejqtde is the abbreviation for Electronic Journal of Qualitative Theory of Differential Equations 21 0 obj << The Electronic Journal of Qualitative Theory of Differential Equations publishes peer-reviewed articles related to "the qualitative theory (stability, periodicity, soundness, etc.) 9 0 obj endobj When f grows superlinearly at infinity i.e. /Resources 64 0 R endstream Z. Khukhunashvili and V. Z. Khukhunashvili [Electron. By using the coincidence degree theory, sufficient conditions for existence of periodic solutions are obtained. In the next section, more specific conditions are imposed on equation (1.1). 1-12. >> J. Qual. edited by: P. Eloe and J. Henderson. (Introduction) (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. The Electronic Journal of Qualitative Theory of Differential Equations is an open access journal which means that all content is freely available without charge to the user or his/her institution. J. Iaia, "Existence for Semilinear Equations on Exterior Domains," Electronic Journal of Qualitative Theory of Differential Equations, 108, 2016, pp. 1 Introduction A basic question in the qualitative theory of dynamical systems is “under what conditions does equation, and in particular we prove it for p = 3. Homepage. The contact is bilateral and the tangential shear due to the bonding field is included. We thank this success to … In: Electronic journal of qualitative theory of differential equations 20. pp. Electronic Journal of Qualitative Theory of Differential Equations Impact Factor, IF, number of article, detailed information and journal factor. \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, \ 1 … �$��{�ܳQI��}b5�����~�?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���
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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. Electronic Journal of Differential Equations. 1-19. 22, 1–20], Infinitely many solutions for $2k$-th order BVP with parameters, Multiple positive solutions for a nonlinear 2n-th order m-point boundary value problems, A note on a linear spectral theorem for a class of first order systems in ℝ 2N, Criticality of one term 2n-order self-adjoint differential equations, Remark on local boundary regularity condition of suitable weak solutions to the 3D MHD equations, Regularity criteria for the 3D tropical climate model in Morrey–Campanato space, Remark on regularity criteria of a weak solution to the 3D MHD equations, Even Number of Positive Solutions for 3n th Order Three-Point Boundary Value Problems on Time Scales, Asymptotic formulas for a scalar linear delay differential equation Dedicated to Professor Tibor Krisztin on the occasion of his 60th birthday, Special issue: Honoring the career of John Graef on the occasion of his 67th birthday, Universal centers in the cubic trigonometric Abel equation, The number of zeros of Abelian integrals for a perturbation of a hyper-elliptic Hamiltonian system with a nilpotent center and a cuspidal loop, Hardy type unique continuation properties for abstract Schrödinger equations and applications, Global solutions for abstract functional differential equations with nonlocal conditions, Fredholmness of an abstract differential equation of elliptic type, Existence and continuous dependence of mild solutions for fractional abstract differential equations with infinite delay, A system of abstract measure delay differential equations, Periodic orbits for real planar polynomial vector fields of degree n having n invariant straight lines taking into account their multiplicities, Cauchy problems for functional evolution inclusions involving accretive operators, Addendum to: “Alternative analysis generated by a differential equation”, Bilateral contact problem with adhesion and damage, Oscillation and spectral properties of self-adjoint even order differential operators with middle terms, Characterization of domains of self-adjoint ordinary differential operators of any order, even or odd, Strong and weak admissibility of L ∞ spaces, On nonnegative solutions of nonlinear two-point boundary value problems for two-dimensional differential systems with advanced arguments, Oscillation of the second order advanced differential equations, Permanence in N species nonautonomous competitive reaction-diffusion-advection system of Kolmogorov type in heterogeneous environment, On a reaction–diffusion–advection system: Fixed boundary or free boundary, Aleksandr Lyapunov, the man who created the modern theory of stability, Algebraic traveling waves for the modified Korteweg–de-Vries–Burgers equation. Journal provider: Bolyai Institute, University of Szeged ISSN: HU ISSN 1417-3875. Contact 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). In: Electronic journal of qualitative theory of differential equations 25. pp. Axial equilibrium points are stable or unstable according to the different parametric restrictions. 2010 Mathematics Subject Classification: 39A30, 37E05, 37N25. S��.�����p 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*} 25 0 obj We emphasize that the last notion is ubiquitous in the context of ergodic theory: for almost all trajectories with nonzero Lyapunov exponents of a measure-preserving flow, the linear variational equation admits a strong nonuniform exponential dichotomy. 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