المؤلفون: Nicolae Vulpe

المصدر: Electronic Journal of Qualitative Theory of Differential Equations, Vol 2024, Iss 22, Pp 1-68 (2024)

مصطلحات موضوعية: quadratic vector fields, affine invariant polynomials, invariant algebraic curve, invariant parabola, Mathematics, QA1-939

وصف الملف: electronic resource

Relation: http://www.math.u-szeged.hu/ejqtde/periodica.html?periodica=1&paramtipus_ertek=publication&param_ertek=10764; https://doaj.org/toc/1417-3875

URL الوصول: https://doaj.org/article/92fc0bc8551742cb8445fa48ef1a5727

المؤلفون: Vulpe, N.I.

المصدر: Electronic Journal of Qualitative Theory of Differential Equations 1-68

مصطلحات موضوعية: affine invariant polynomials, invariant algebraic curve, invariant parabola, Quadratic vector fields

وصف الملف: application/pdf

Relation: https://ibn.idsi.md/vizualizare_articol/210383; urn:issn:14173875

الاتاحة: https://ibn.idsi.md/vizualizare_articol/210383
https://doi.org/10.14232/EJQTDE.2024.1.22

المؤلفون: Artes, J.C., Llibre, J., Schlomiuk, D.I., Vulpe, N.I.

المصدر: International Journal of Bifurcation and Chaos 0-0

مصطلحات موضوعية: affine invariant polynomial, bifurcation, configuration of invariant lines, Poincare compactification, Quadratic vector fields, Riccati system, topological equivalence

وصف الملف: application/pdf

Relation: https://ibn.idsi.md/vizualizare_articol/197690; urn:issn:02181274

الاتاحة: https://ibn.idsi.md/vizualizare_articol/197690
https://doi.org/10.1142/S0218127424500044

المؤلفون: Artés Ferragud, Joan Carles, Llibre, Jaume, Schlomiuk, Dana, Vulpe, Nicolae

مصطلحات موضوعية: Quadratic vector fields, Bifurcation, Topological equivalence, Riccati system, Poincaré compactification, Affine invariant polynomial, Configuration of invariant lines

وصف الملف: application/pdf

Relation: Agencia Estatal de Investigación PID2019-104658GB-I00; European Commission 777911; Agència de Gestió d'Ajuts Universitaris i de Recerca 2021/SGR-00113; International journal of bifurcation and chaos in applied sciences and engineering; Vol. 34, Issue 1 (January 2024), art. 2450004; https://ddd.uab.cat/record/299751; urn:10.1142/S0218127424500044; urn:oai:ddd.uab.cat:299751; urn:scopus_id:85184363568; urn:articleid:17936551v34n1p2450004; urn:gsduab:5830

الاتاحة: https://ddd.uab.cat/record/299751

المؤلفون: Cairó, Laurent, Llibre, Jaume

مصطلحات موضوعية: Quadratic vector fields, Quadratic systems, Phase portraits

وصف الملف: application/pdf

Relation: Agencia Estatal de Investigación PID2019-104658GB-I00; European Commission 777911; Agència de Gestió d'Ajuts Universitaris i de Recerca 2021/SGR-00113; Axioms; Vol. 12, Issue 8 (August 2023), art. 756; https://ddd.uab.cat/record/282731; urn:10.3390/axioms12080756; urn:oai:ddd.uab.cat:282731; urn:scopus_id:85169094663; urn:articleid:20751680v12n8p756; urn:gsduab:5697; urn:oai:egreta.uab.cat:publications/6fef6063-8e23-4fd3-a3fe-a1e3dfce57ba

الاتاحة: https://ddd.uab.cat/record/282731

المؤلفون: Laurent Cairó, Jaume Llibre

المصدر: Axioms; Volume 12; Issue 8; Pages: 756

مصطلحات موضوعية: quadratic vector fields, quadratic systems, phase portraits

وصف الملف: application/pdf

Relation: Mathematical Analysis; https://dx.doi.org/10.3390/axioms12080756

الاتاحة: https://doi.org/10.3390/axioms12080756

المؤلفون: Jaume Llibre, Regilene D. S. Oliveira, Camila A. B. Rodrigues

المصدر: Electronic Journal of Differential Equations, Vol 2021, Iss 69,, Pp 1-52 (2021)

مصطلحات موضوعية: quadratic vector fields, algebraic invariant curve, darboux invariant, global phase portrait, Mathematics, QA1-939

وصف الملف: electronic resource

Relation: http://ejde.math.txstate.edu/Volumes/2021/69/abstr.html; https://doaj.org/toc/1072-6691

URL الوصول: https://doaj.org/article/fe6441d482b14fadbb33f689cb26a97b

المؤلفون: Llibre, Jaume, Oliveira, Regilene, Rodrigues, Camila A. B.

المصدر: Electronic Journal of Differential Equations, 2021, San Marcos, Texas: Texas State University and University of North Texas.

مصطلحات موضوعية: quadratic vector fields, algebraic invariant curve, Darboux invariant, global phase portrait

وصف الملف: Text; 52 pages; 1 file (.pdf); application/pdf

Relation: https://hdl.handle.net/10877/14479

الاتاحة: https://hdl.handle.net/10877/14479

المؤلفون: Cristina Bujac, Nicolae Vulpe

المصدر: Electronic Journal of Qualitative Theory of Differential Equations, Vol 2017, Iss 85, Pp 1-35 (2017)

مصطلحات موضوعية: quadratic vector fields, infinite and finite singularities, affine invariant polynomials, poincaré compactification, configuration of singularities, geometric equivalence relation, Mathematics, QA1-939

وصف الملف: electronic resource

Relation: http://www.math.u-szeged.hu/ejqtde/periodica.html?periodica=1&paramtipus_ertek=publication&param_ertek=5916; https://doaj.org/toc/1417-3875

URL الوصول: https://doaj.org/article/d648c42b4123403687c43f9283a3afd2

المؤلفون: Artes, J.C., Llibre, J., Schlomiuk, D.I., Vulpe, N.I.

المصدر: Qualitative Theory of Dynamical Systems 0-0

مصطلحات موضوعية: affine invariant polynomials, configuration of singularities, infinite and finite singularities, Poincare compactification, Quadratic vector fields, Topological equivalence relation

وصف الملف: application/pdf

Relation: https://ibn.idsi.md/vizualizare_articol/97439; urn:issn:15755460

الاتاحة: https://ibn.idsi.md/vizualizare_articol/97439
https://doi.org/10.1007/s12346-020-00372-7

المؤلفون: Artés Ferragud, Joan Carles, Llibre, Jaume, Schlomiuk, Dana, Vulpe, Nicolae

مصطلحات موضوعية: Quadratic vector fields, Infinite and finite singularities, Affine invariant polynomials, Poincaré compactification, Configuration of singularities, Topological equivalence relation

وصف الملف: application/pdf

Relation: Ministerio de Economía y Competitividad MTM2016-77278-P; Agència de Gestió d'Ajuts Universitaris i de Recerca 2017/SGR-1617; European Commission 777911; Qualitative theory of dynamical systems; Vol. 19, Issue 1 (April 2020), art. 51; https://ddd.uab.cat/record/221281; urn:oai:ddd.uab.cat:221281; urn:scopus_id:85079806665; urn:articleid:16623592v19n1p51; urn:gsduab:4884; urn:wos_id:000516555200001

الاتاحة: https://ddd.uab.cat/record/221281

المؤلفون: Artés Ferragud, Joan Carles, Llibre, Jaume, Schlomiuk, Dana, Vulpe, Nicolae

مصطلحات موضوعية: Quadratic vector fields, Infinite and finite singularities, Affine invariant polynomials, Poincar compactification, Topological configuration of singularities, Phase portrait, Limit cycle

وصف الملف: application/pdf

Relation: Ministerio de Economía y Competitividad MTM2016-77278-P; Agència de Gestió d'Ajuts Universitaris i de Recerca 2017/SGR-1617; European Commission 777911; Rendiconti del Circolo Matematico di Palermo; vol. 70 (July 2020) p. 923-945; https://ddd.uab.cat/record/232170; urn:oai:ddd.uab.cat:232170; urn:scopus_id:85088132959; urn:gsduab:5048; urn:articleid:19734409v70p923

الاتاحة: https://ddd.uab.cat/record/232170

المؤلفون: Joan Artés, Jaume Llibre, Dana Schlomiuk, Nicolae Vulpe

المصدر: Electronic Journal of Qualitative Theory of Differential Equations, Vol 2015, Iss 49, Pp 1-60 (2015)

مصطلحات موضوعية: quadratic vector fields, infinite and finite singularities, affine invariant polynomials, poincaré compactification, configuration of singularities, geometric equivalence relation, Mathematics, QA1-939

وصف الملف: electronic resource

Relation: http://www.math.u-szeged.hu/ejqtde/periodica.html?periodica=1&paramtipus_ertek=publication&param_ertek=3836; https://doaj.org/toc/1417-3875

URL الوصول: https://doaj.org/article/2f556822df244efe9e5835c168dbfdbe

المؤلفون: ARTÉS, JOAN C., LLIBRE, JAUME, SCHLOMIUK, DANA, VULPE, NICOLAE

المصدر: The Rocky Mountain Journal of Mathematics, 2015 Jan 01. 45(1), 29-113.

URL الوصول: https://www.jstor.org/stable/26411432

المؤلفون: Llibre, Jaume, Tian, Yun

مصطلحات موضوعية: Quadratic systems, Quadratic vector fields, Quadratic center, Periodic orbit, Limit cycle, Bifurcation from center, Cyclicity of the period annulus

وصف الملف: application/pdf

Relation: Ministerio de Economía y Competitividad MTM2016-77278-P; Ministerio de Economía y Competitividad MTM2013-40998-P; Agència de Gestió d'Ajuts Universitaris i de Recerca 2014/SGR-568; International journal of bifurcation and chaos in applied sciences and engineering; Vol. 28, Issue 11 (December 2018), art. 1850145; https://ddd.uab.cat/record/221283; urn:10.1142/S0218127418501456; urn:oai:ddd.uab.cat:221283; urn:scopus_id:85057125236; urn:articleid:17936551v28n11p1850145; urn:gsduab:4571; urn:wos_id:000450496100006

الاتاحة: https://ddd.uab.cat/record/221283

المؤلفون: Llibre, Jaume, Oliveira, Regilene

مصطلحات موضوعية: Darboux invariant, Phase portraits, Quadratic vector fields

وصف الملف: application/pdf

Relation: Communications in contemporaray mathematics; Vol. 20, issue 4 (2018), art. 1750033; https://ddd.uab.cat/record/199334; urn:10.1142/S021919971750033X; urn:oai:ddd.uab.cat:199334; urn:gsduab:4209; urn:articleid:17936683v20n4p1750033; urn:scopus_id:85047332008; urn:wos_id:000432715500002; urn:oai:egreta.uab.cat:publications/1f23fab9-f0a1-4998-b497-c0ff9220a321

الاتاحة: https://ddd.uab.cat/record/199334

المؤلفون: Joan Artés, Jaume Llibre, Alex Rezende, Dana Schlomiuk, Nicolae Vulpe

المصدر: Electronic Journal of Qualitative Theory of Differential Equations, Vol 2014, Iss 60, Pp 1-43 (2014)

مصطلحات موضوعية: quadratic vector fields, infinite and finite singularities, affine invariant polynomials, poincaré compactification, configuration of singularities, geometric equivalence relation, Mathematics, QA1-939

وصف الملف: electronic resource

Relation: http://www.math.u-szeged.hu/ejqtde/periodica.html?periodica=1&paramtipus_ertek=publication&param_ertek=3372; https://doaj.org/toc/1417-3875

URL الوصول: https://doaj.org/article/781137625e004f3bb67dfb67de274ce6

المؤلفون: Joan C. Artes, Jaume Llibre, Dana Schlomiuk, Nicolae Vulpe

المصدر: Electronic Journal of Differential Equations, Vol 2014, Iss 159,, Pp 1-79 (2014)

مصطلحات موضوعية: Quadratic vector fields, infinite and finite singularities, affine invariant polynomials, Poincare compactification, configuration of singularities, geometric equivalence relation, Mathematics, QA1-939

وصف الملف: electronic resource

Relation: http://ejde.math.txstate.edu/Volumes/2014/159/abstr.html; https://doaj.org/toc/1072-6691

URL الوصول: https://doaj.org/article/dc172f71dfdb4ce2b50e49d1865e2bd4

المؤلفون: Dana Schlomiuk, Nicolae Vulpe

المصدر: Electronic Journal of Differential Equations, Vol 2012, Iss 64,, Pp 1-69 (2012)

مصطلحات موضوعية: Quadratic vector fields, Lotka-Volterra differential systems, phase portraits, affine invariant polynomials, topological invariants, Mathematics, QA1-939

وصف الملف: electronic resource

Relation: http://ejde.math.txstate.edu/Volumes/2012/64/abstr.html; https://doaj.org/toc/1072-6691

URL الوصول: https://doaj.org/article/bf889fa8df574af888f3c7bb8a81a922

المؤلفون: Joan C. Artes, Jaume Llibre, Nicolae Vulpe

المصدر: Electronic Journal of Differential Equations, Vol 2012, Iss 09,, Pp 1-35 (2012)

مصطلحات موضوعية: Quadratic vector fields, weak singularities, type of singularity, Mathematics, QA1-939

وصف الملف: electronic resource

Relation: http://ejde.math.txstate.edu/Volumes/2012/09/abstr.html; https://doaj.org/toc/1072-6691

URL الوصول: https://doaj.org/article/da1ca6a3935846bf9d384e1350841767