Academic literature on the topic 'Syzygieae'

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Journal articles on the topic "Syzygieae"

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Vasconcelos, Thais N. C., Eve J. Lucas, Maria Conejero, Augusto Giaretta, and Gerhard Prenner. "Convergent evolution in calyptrate flowers of Syzygieae (Myrtaceae)." Botanical Journal of the Linnean Society 192, no. 3 (2019): 498–509. http://dx.doi.org/10.1093/botlinnean/boz105.

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Abstract Shedding a fused perianth as a calyptra at anthesis is a trait that has evolved independently multiple times in angiosperm evolutionary history. However, calyptras do not correspond to homologous structures in all cases. Here, we describe calyptra development in the evolutionary context of Myrtaceae tribe Syzygieae. We use scanning electron and light microscopy to contrast calyptra development in calyptrate and non-calyptrate species in the group. Results show that calyptras in Syzygieae are not all homologous, but correspond to two ontogenetically distinct structures involving differ
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Thornhill, Andrew H., Geoff S. Hope, Lyn A. Craven, and Michael D. Crisp. "Pollen morphology of the Myrtaceae. Part 2: tribes Backhousieae, Melaleuceae, Metrosidereae, Osbornieae and Syzygieae." Australian Journal of Botany 60, no. 3 (2012): 200. http://dx.doi.org/10.1071/bt11175.

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Pollen morphology of 16 genera and 101 species from the Myrtaceae tribes Backhousieae, Melaleuceae, Metrosidereae, Osbornieae and Syzygieae was surveyed using scanning electron microscopy (SEM) and light microscopy (LM). The most common pollen type observed in these tribes was parasyncolpate with arcuate or angular colpi, and a rugulate exine pattern. There was little size variation in observed pollen, except for larger pollen in tribe Melaleuceae. All Metrosideros pollen grains had apocolpial islands, as well as all Callistemon species viewed by LM. Choricarpia of tribe Backhousieae had polle
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da Silva, Cleber J., Luiz Cláudio de A. Barbosa, Ana E. Marques, Maria Cristina Baracat-Pereira, Antônio L. Pinheiro, and Renata M. S. A. Meira. "Anatomical characterisation of the foliar colleters in Myrtoideae (Myrtaceae)." Australian Journal of Botany 60, no. 8 (2012): 707. http://dx.doi.org/10.1071/bt12149.

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Colleters are secretory structures that occur in vegetative or reproductive shoot apices of many botanical families. However, in the order Myrtales, reports of colleters have considered only external morphology. We therefore evaluated apical meristems of 52 species belonging to 17 genera from seven tribes of subfamily Myrtoideae (Myrtaceae), so as to analyse the incidence and morphological types of colleters. The samples were fixed for light and scanning electron microscopy. Histochemical tests were carried out on fresh and methacrylate-embedded material. Proteins of the colleter secretions we
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Salamon, Mariusz A., Michat Zatoń, and Przemysław Gorzelak. "Syzygial brachials from the upper Muschelkalk (Middle Triassic, Ladinian) of Poland and their implication for an early origin of comatulid crinoids." Journal of Paleontology 82, no. 3 (2008): 634–37. http://dx.doi.org/10.1666/06-108.1.

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According to Ubaghs (1978), syzygies are brachial articulations in which radiating ridges and furrows on the two joint faces oppose each other rather than interlock as in symplexies. Cryptosyzygies differ from syzygies by having very short ridges that may be replaced by rows of tubercles or granules, with a tendency toward irregular arrangement and disappearance. Among Triassic crinoids, only representatives of the orders Isocrinida Sieverts-Doreck, 1952 and Comatulida Clark, 1908 had cryptosyzygial or syzygial brachial articulation, respectively. According to Rasmussen (1978), among Isocrinid
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Bueno, M., and A. A. V. Flores. "Tidal-amplitude rhythms of larval release: variable departure from presumed optimal timing among populations of the mottled shore crab." Journal of the Marine Biological Association of the United Kingdom 90, no. 5 (2010): 859–65. http://dx.doi.org/10.1017/s0025315410000044.

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It is widely assumed that optimal timing of larval release is of major importance to offspring survival, but the extent to which environmental factors entrain synchronous reproductive rhythms in natural populations is not well known. We sampled the broods of ovigerous females of the common shore crab Pachygrapsus transversus at both sheltered and exposed rocky shores interspersed along a 50-km coastline, during four different periods, to better assess inter-population differences of larval release timing and to test for the effect of wave action. Shore-specific patterns were consistent through
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Rota, Gian-Carlo. "Syzygies." Advances in Mathematics 61, no. 2 (1986): 184. http://dx.doi.org/10.1016/0001-8708(86)90079-4.

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Kreuzer, Martin, and Markus Kriegl. "Gröbner bases for syzygy modules of border bases." Journal of Algebra and Its Applications 13, no. 06 (2014): 1450003. http://dx.doi.org/10.1142/s0219498814500030.

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Given an order ideal 𝒪 and an 𝒪-border basis of a 0-dimensional polynomial ideal, it was shown by Huibregtse that the liftings of the neighbor syzygies (i.e. of the fundamental syzygies of neighboring border terms) form a system of generators for the syzygy module of the border basis. We elaborate on Huibregtse's proof and transform it into explicit algorithmic form. Based on this, we are able to exhibit explicit conditions on a module term ordering τ such that the liftings of the neighbor syzygies are in fact a τ-Gröbner basis. Finally, we construct term orderings satisfying these conditions
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Brambach, Fabian, James W. Byng, and Heike Culmsee. "Five new species of Syzygium (Myrtaceae) from Sulawesi, Indonesia." PhytoKeys 81 (June 15, 2017): 47–78. https://doi.org/10.3897/phytokeys.81.13488.

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Following ongoing ecological research on the tree diversity of the Indonesian island of Sulawesi, we describe five new species of Syzygium. These are the first descriptions of Syzygium species from the island since Blume (1850, Jambosa celebica and J. cornifolia), highlighting the significant lack of taxonomic research on the genus for the region. The five species proposed as new are Syzygium balgooyi sp. nov., Syzygium contiguum sp. nov., Syzygium devogelii sp. nov., Syzygium eymae sp. nov., and Syzygium galanthum sp. nov. All species are illustrated and information on their distribution, eco
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O'Carroll, Liam, and Dorin Popescu. "Splitting Syzygies." Journal of Algebra 228, no. 2 (2000): 682–709. http://dx.doi.org/10.1006/jabr.2000.8295.

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Aprodu, Marian, and Gavril Farkas. "Green’s conjecture for curves on arbitrary K3 surfaces." Compositio Mathematica 147, no. 3 (2011): 839–51. http://dx.doi.org/10.1112/s0010437x10005099.

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AbstractGreen’s conjecture predicts than one can read off special linear series on an algebraic curve, by looking at the syzygies of its canonical embedding. We extend Voisin’s results on syzygies of K3 sections, to the case of K3 surfaces with arbitrary Picard lattice. This, coupled with results of Voisin and Hirschowitz–Ramanan, provides a complete solution to Green’s conjecture for smooth curves on arbitrary K3 surfaces.
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Dissertations / Theses on the topic "Syzygieae"

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Nemati, Navid. "Syzygies : algebra, combinatorics and geometry." Thesis, Sorbonne université, 2019. http://www.theses.fr/2019SORUS284.

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La régularité de Castelnuovo-Mumford est l'un des principaux invariants numériques permettant de mesurer la complexité de la structure des modules gradués de type fini sur des anneaux polynomiaux. Il mesure le degré maximal des générateurs des modules de syzygies. Dans cette thèse, nous étudions la régularité de Castelnuovo-Mumford avec différents points de vue et, dans certaines parties, nous nous concentrons principalement sur les syzygies linéaires. Dans le chapitre 2, nous étudions la régularité des homologies de Koszul et des cycles de Koszul de quotients unidimensionnels. Dans le chapitr
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Agostini, Daniele. "On syzygies of algebraic varieties with applications to moduli." Doctoral thesis, Humboldt-Universität zu Berlin, 2018. http://dx.doi.org/10.18452/19415.

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Diese Dissertation beschäftigt sich mit asymptotischen Syzygien und Gleichungen Abelscher Varietäten, sowie mit deren Anwendung auf zyklische Überdeckungen von Kurven von Geschlecht zwei. Was asymptotischen Syzygien angeht, zeigen wir für beliebige Geradenbündel auf projektiven Schemata: Wenn die asymptotischen Syzygien von Grad p eines Geradenbündels verschwinden, dann ist das Geradenbündel p-sehr ampel. Darüber hinaus verwenden wir die Bridgeland-King-Reid-Haiman Korrespondenz, um zu zeigen, dass dieses Ergebnis auch umgekehrt wahr ist, wenn es um eine glatte Fläche und kleine p geht. D
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Dohm, Marc. "Implicitisation de surfaces algébriques rationnelles avec la méthode des syzygies." Phd thesis, Université de Nice Sophia-Antipolis, 2008. http://tel.archives-ouvertes.fr/tel-00294484.

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L'implicitisation d'une surface algébrique rationnelle, c'est-à-dire le passage de la paramétrisation à une représentation implicite, est un<br />problème géométrique classique. Dans ce travail de thèse, nous utilisons la théorie des syzygies pour représenter implicitement une surface par une matrice dont les mineurs de taille maximale ont l'équation implicite comme plus grand diviseur commun. Dans les deux premiers chapitres, nous traitons deux classes de surfaces spéciales pour lesquelles il est toujours possible de construire une matrice carrée qui correspond au résultant d'une μ-base : les
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Lelli-Chiesa, Margherita. "Gieseker-Petri divisors and Brill-Noether theory of K3-sections." Doctoral thesis, Humboldt-Universität zu Berlin, Mathematisch-Naturwissenschaftliche Fakultät II, 2012. http://dx.doi.org/10.18452/16596.

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Diese Dissertation untersucht Brill-Noether-Theorie der algebraischen Kurven, unter besonderer Berücksichtigung von Kurven auf K3-Flächen und Del-Pezzo-Flächen. In Kapitel 2 studieren wir den Gieseker-Petri-Ort GP_g im Modulraum M_g der glatten irreduziblen Kurven vom Geschlecht g. Dieser Ort wird definiert durch Kurven mit einer Brill-Noether-Varietät G^r_d(C), die singulär ist oder deren Dimension größer als erwartet ist. Der Satz von Gieseker-Petri impliziert, dass GP_g mindestens Kodimension 1 hat, und es wurde vermutet, dass er von reiner Kodimension 1 ist. Wir beweisen diese Ver
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Bouzeghoub, Mohamed Arezki. "Elimination des syzygies inutiles dans le calcul des bases de Groebner." Grenoble 2 : ANRT, 1988. http://catalogue.bnf.fr/ark:/12148/cb376122834.

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Stewart, Paul Nathan. "Stellar Astrophysics With Cassini: Syzygies, Stardust, and the Sizes Of Stars." Thesis, The University of Sydney, 2016. http://hdl.handle.net/2123/14517.

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The Cassini spacecraft has been exploring the complex and fascinating Saturnian system for over a decade. This thesis presents Cassini observations employed for the study of evolved stars. Utilising the on-board near-infrared spectrometer, we demonstrate the recovery of flux calibrated stellar spectra. Data were taken from a publicly-accessible archive, and the overwhelming majority were obtained for various spacecraft engineering and calibration purposes; their application to stellar astrophysics being an opportunistic extension to the mission outcomes. An atlas of stellar spectra has been co
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Sengupta, Indranath. "Betti Numbers, Grobner Basis And Syzygies For Certain Affine Monomial Curves." Thesis, Indian Institute of Science, 2000. https://etd.iisc.ac.in/handle/2005/271.

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Let e > 3 and mo,... ,me_i be positive integers with gcd(m0,... ,me_i) = 1, which form an almost arithmetic sequence, i.e., some e - 1 of these form an arithmetic progression. We further assume that m0,... ,mc_1 generate F := Σ e-1 I=0 Nmi minimally. Note that any three integers and also any arithmetic progression form an almost arithmetic sequence. We assume that 0 < m0 < • • • < me-2 form an arithmetic progression and n := mc-i is arbitrary Put p := e - 2. Let K be a field and XQ) ... ,Xj>, Y,T be indeterminates. Let p denote the kernel of the if-algebra homomorphism η: K[XQ, ..., XV) Y) -*
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Sengupta, Indranath. "Betti Numbers, Grobner Basis And Syzygies For Certain Affine Monomial Curves." Thesis, Indian Institute of Science, 2000. http://hdl.handle.net/2005/271.

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Let e > 3 and mo,... ,me_i be positive integers with gcd(m0,... ,me_i) = 1, which form an almost arithmetic sequence, i.e., some e - 1 of these form an arithmetic progression. We further assume that m0,... ,mc_1 generate F := Σ e-1 I=0 Nmi minimally. Note that any three integers and also any arithmetic progression form an almost arithmetic sequence. We assume that 0 < m0 < • • • < me-2 form an arithmetic progression and n := mc-i is arbitrary Put p := e - 2. Let K be a field and XQ) ... ,Xj>, Y,T be indeterminates. Let p denote the kernel of the if-algebra homomorphism η: K[XQ, ..., XV) Y) -*
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Steenpaß, Andreas [Verfasser], and Wolfram [Akademischer Betreuer] Decker. "Algorithms in SINGULAR: Parallelization, Syzygies, and Singularities / Andreas Steenpaß. Betreuer: Wolfram Decker." Kaiserslautern : Technische Universität Kaiserslautern, 2014. http://d-nb.info/1054636168/34.

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González-Mazón, Pablo. "Méthodes effectives pour les transformations birationnelles multilinéaires et contributions à l'analyse polynomiale de données." Electronic Thesis or Diss., Université Côte d'Azur, 2023. http://www.theses.fr/2023COAZ4138.

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Cette thèse explore deux sujets distincts à l'intersection de l'algèbre commutative, de la géométrie algébrique, de l'algèbre multilinéaire et de la modélisation géométrique :1. L'étude et la construction effective des transformations birationnelles multilinéaires 2. L'extraction d'informations à partir de données discrètes à l'aide de modèles polynomiaux. La partie principale de ce travail est consacrée aux transformations birationnelles multilinéaires.Une transformation birationnelle multilinéaire est une transformation rationnelle phi : (mathbb{P}^1)^n dashrightarrow{} mathbb{P}^n, définie
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Books on the topic "Syzygieae"

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A, Griffith Phillip, ed. Syzygies. Cambridge University Press, 1985.

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Pharos, Philotheos. Syzygia. Akritas, 1987.

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Peeva, Irena. Graded Syzygies. Springer London, 2011. http://dx.doi.org/10.1007/978-0-85729-177-6.

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service), SpringerLink (Online, ed. Graded Syzygies. Springer-Verlag London Limited, 2011.

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Johnson, F. E. A. Syzygies and Homotopy Theory. Springer London, 2012. http://dx.doi.org/10.1007/978-1-4471-2294-4.

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Irena, Peeva, ed. Syzygies and Hilbert functions. Chapman & Hall/CRC, 2007.

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Heinzer, William J., Craig L. Huneke, and Judith D. Sally, eds. Commutative Algebra: Syzygies, Multiplicities, and Birational Algebra. American Mathematical Society, 1994. http://dx.doi.org/10.1090/conm/159.

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AMS-IMS-SIAM Summer Research Conference on Commutative Algebra (1992 Mount Holyoke College). Commutative algebra: Syzygies, multiplicities, and birational algebra. Edited by Heinzer William J, Huneke C, and Sally Judith D. American Mathematical Society, 1994.

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Popov, V. L. Groups, generators, syzygies, and orbits in invariant theory. American Mathematical Society, 1992.

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1947-, Herzog Jürgen, ed. Gröbner bases in commutative algebra. American Mathematical Society, 2012.

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Book chapters on the topic "Syzygieae"

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Lier, Doris. "Syzygie." In Wörterbuch der Psychotherapie. Springer Vienna, 2000. http://dx.doi.org/10.1007/978-3-211-99131-2_1903.

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Peeva, Irena. "Graded Free Resolutions." In Graded Syzygies. Springer London, 2011. http://dx.doi.org/10.1007/978-0-85729-177-6_1.

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Peeva, Irena. "Hilbert Functions." In Graded Syzygies. Springer London, 2011. http://dx.doi.org/10.1007/978-0-85729-177-6_2.

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Peeva, Irena. "Monomial Resolutions." In Graded Syzygies. Springer London, 2011. http://dx.doi.org/10.1007/978-0-85729-177-6_3.

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Peeva, Irena. "Syzygies of Toric Ideals." In Graded Syzygies. Springer London, 2011. http://dx.doi.org/10.1007/978-0-85729-177-6_4.

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Bueso, José, José Gómez-Torrecillas, and Alain Verschoren. "Syzygies and applications." In Algorithmic Methods in Non-Commutative Algebra. Springer Netherlands, 2003. http://dx.doi.org/10.1007/978-94-017-0285-0_6.

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Eisenbud, David, and Irena Peeva. "Far-Out Syzygies." In Minimal Free Resolutions over Complete Intersections. Springer International Publishing, 2016. http://dx.doi.org/10.1007/978-3-319-26437-0_6.

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Dutta, S. P. "Syzygies and Homological Conjectures." In Mathematical Sciences Research Institute Publications. Springer New York, 1989. http://dx.doi.org/10.1007/978-1-4612-3660-3_7.

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Johnson, F. E. A. "Preliminaries." In Syzygies and Homotopy Theory. Springer London, 2012. http://dx.doi.org/10.1007/978-1-4471-2294-4_1.

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Johnson, F. E. A. "Group Rings of Cyclic Groups." In Syzygies and Homotopy Theory. Springer London, 2012. http://dx.doi.org/10.1007/978-1-4471-2294-4_10.

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Conference papers on the topic "Syzygieae"

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Duarte, Eliana, and Daniel Lichtblau. "Polynomial GCDs by Syzygies." In 2016 18th International Symposium on Symbolic and Numeric Algorithms for Scientific Computing (SYNASC). IEEE, 2016. http://dx.doi.org/10.1109/synasc.2016.021.

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Möller, H. Michael, Teo Mora, and Carlo Traverso. "Gröbner bases computation using syzygies." In Papers from the international symposium. ACM Press, 1992. http://dx.doi.org/10.1145/143242.143343.

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Malbos, Philippe, and Isaac Ren. "Completion in Operads via Essential Syzygies." In ISSAC '21: International Symposium on Symbolic and Algebraic Computation. ACM, 2021. http://dx.doi.org/10.1145/3452143.3465552.

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Cabarcas, Daniel, and Jintai Ding. "Linear algebra to compute syzygies and Gröbner bases." In the 36th international symposium. ACM Press, 2011. http://dx.doi.org/10.1145/1993886.1993902.

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Schreyer, Frank-Olaf, and David Eisenbud. "Betti Numbers of Syzygies and Cohomology of Coherent Sheaves." In Proceedings of the International Congress of Mathematicians 2010 (ICM 2010). Published by Hindustan Book Agency (HBA), India. WSPC Distribute for All Markets Except in India, 2011. http://dx.doi.org/10.1142/9789814324359_0065.

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Charalambous, Hara, Kostas Karagiannis, Sotiris Karanikolopoulos, and Aristides Kontogeorgis. "Syzygies of ideals of polynomial rings over principal ideal domains." In ISSAC '20: International Symposium on Symbolic and Algebraic Computation. ACM, 2020. http://dx.doi.org/10.1145/3373207.3404046.

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Busé, Laurent, and Marc Dohm. "Implicitization of bihomogeneous parametrizations of algebraic surfaces via linear syzygies." In the 2007 international symposium. ACM Press, 2007. http://dx.doi.org/10.1145/1277548.1277559.

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LIM, ALLAN E. K., and JOHN CARMINATI. "ON THE CONSTRUCTION OF SYZYGIES OF THE POLYNOMIAL INVARIANTS OF THE RIEMANN TENSOR." In Proceedings of the MG11 Meeting on General Relativity. World Scientific Publishing Company, 2008. http://dx.doi.org/10.1142/9789812834300_0340.

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Naldi, Simone, and Vincent Neiger. "A divide-and-conquer algorithm for computing gröbner bases of syzygies in finite dimension." In ISSAC '20: International Symposium on Symbolic and Algebraic Computation. ACM, 2020. http://dx.doi.org/10.1145/3373207.3404059.

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