Littérature scientifique sur le sujet « Comonad »

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Articles de revues sur le sujet "Comonad"

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El Kaoutit, L., and J. Vercruysse. "Cohomology for Bicomodules. Separable and Maschke functors." Journal of K-Theory 3, no. 1 (2007): 123–52. http://dx.doi.org/10.1017/is007011017jkt017.

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AbstractWe introduce the category of bicomodules for a comonad on a Grothendieck category whose underlying functor is right exact and preserves direct sums. We characterize comonads with a separable forgetful functor by means of cohomology groups using cointegrations into bicomodules. We present two applications: the characterization of coseparable corings stated in [14], and the characterization of coseparable coalgebra coextensions stated in [19].
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DOŠEN, KOSTA, and ZORAN PETRIĆ. "Coherence for monoidal monads and comonads." Mathematical Structures in Computer Science 20, no. 4 (2010): 545–61. http://dx.doi.org/10.1017/s0960129510000034.

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The goal of this paper is to prove coherence results with respect to relational graphs for monoidal monads and comonads, that is, monads and comonads in a monoidal category such that the endofunctor of the monad or comonad is a monoidal functor (this means that it preserves the monoidal structure up to a natural transformation that need not be an isomorphism). These results are proved first in the absence of symmetry in the monoidal structure, and then with this symmetry. The monoidal structure is also allowed to be given with finite products or finite coproducts. Monoidal comonads with finite
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Uustalu, Tarmo, and Tarmo Vene. "Signals and Comonads." JUCS - Journal of Universal Computer Science 11, no. (7) (2005): 1310–26. https://doi.org/10.3217/jucs-011-07-1311.

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We propose a novel discipline for programming stream functions and for the semantic description of stream manipulation languages based on the observation that both general and causal stream functions can be characterized as coKleisli arrows of comonads. This seems to be a promising application for the old, but very little exploited idea that if monads abstract notions of computation of a value, comonads ought to be useable as an abstraction of notions of value in a context. We also show that causal partial-stream functions can be described in terms of a combination of a comonad and a monad.
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HO, WENG KIN. "Characterising E-projectives via Comonads." Mathematical Structures in Computer Science 27, no. 4 (2015): 491–506. http://dx.doi.org/10.1017/s0960129515000183.

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This paper demonstrates the usefulness of a comonadic approach to give previously unknown characterisation of projective objects in certain categories over particular subclasses of epimorphisms. This approach is a simple adaptation of a powerful technique due to Escardó which has been used extensively to characterise injective spaces and locales over various kinds of embeddings, but never previously for projective structures. Using some examples, we advertise the versatility of this approach – in particular, highlighting its advantage over existing methods on characterisation of projectives, w
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Blanc, David, and Simona Paoli. "Comonad cohomology of track categories." Journal of Homotopy and Related Structures 14, no. 4 (2019): 881–917. http://dx.doi.org/10.1007/s40062-019-00235-2.

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WISBAUER, ROBERT. "COMODULES AND CONTRAMODULES." Glasgow Mathematical Journal 52, A (2010): 151–62. http://dx.doi.org/10.1017/s0017089510000194.

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AbstractAlgebras A and coalgebras C over a commutative ring R are defined by properties of the (endo)functors A ⊗R – and C ⊗R – on the category of R-modules R. Generalising these notions, monads and comonads were introduced on arbitrary categories, and it turned out that some of their basic relations do not depend on the specific properties of the tensor product. In particular, the adjoint of any comonad is a monad (and vice versa), and hence, for any coalgebra C, HomR(C, –), the right adjoint of C ⊗R –, is a monad on R. The modules for the monad HomR(C, –) were called contramodules by Eilenbe
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Power, John, and Hiroshi Watanabe. "Combining a monad and a comonad." Theoretical Computer Science 280, no. 1-2 (2002): 137–62. http://dx.doi.org/10.1016/s0304-3975(01)00024-x.

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MARMOLEJO, F., and A. VÁZQUEZ-MÁRQUEZ. "No-iteration mixed distributive laws." Mathematical Structures in Computer Science 27, no. 1 (2015): 1–16. http://dx.doi.org/10.1017/s0960129514000656.

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Power, John, and Hiroshi Watanabe. "Distributivity for a monad and a comonad." Electronic Notes in Theoretical Computer Science 19 (1999): 102. http://dx.doi.org/10.1016/s1571-0661(05)80271-3.

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Hess, Kathryn, and Brooke Shipley. "The homotopy theory of coalgebras over a comonad." Proceedings of the London Mathematical Society 108, no. 2 (2013): 484–516. http://dx.doi.org/10.1112/plms/pdt038.

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Thèses sur le sujet "Comonad"

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Kvamme, Sondre [Verfasser]. "Comonads and Gorenstein Homological Algebra / Sondre Kvamme." Bonn : Universitäts- und Landesbibliothek Bonn, 2017. http://d-nb.info/1149154241/34.

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Sirland, Jenny. "Realistisk restidsberäkning för comodal reseplanering." Thesis, Uppsala University, Department of Information Technology, 2009. http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-111166.

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<p>With increasing traffic congestion problems in bigger cities, it is becoming more and more important to provide the traveller with correct information about all transport alternatives. When doing that, the traveller gets the opportunity to make the best decision based on the current traffic situation. Instead of traditional travel planners, where public and private transport modes are presented separately, the co-modal travel planner offers a combination. In order to make the comparison correct and fair, the travel times have to be estimated realistically and on equal basis. This master the
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Svensson, Richard. "COMOBA : Counteract Motion Backrest." Thesis, Högskolan i Halmstad, 2015. http://urn.kb.se/resolve?urn=urn:nbn:se:hh:diva-31919.

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nilsson, Kevin. "Material modeling in Sheet Metal Forming Simulations : Quality comparison between comonly used material models." Thesis, Blekinge Tekniska Högskola, Institutionen för maskinteknik, 2019. http://urn.kb.se/resolve?urn=urn:nbn:se:bth-18227.

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In today's automotive industries, many different simulation programs are used to optimize parts before they come into production. This has created a market for complex material models to get the best possible approximation of reality in the simulation environment. Several industries are still using older material models that can’t give an acceptable accuracy for the materials currently in use as they are based on much simpler and older materials. The problem with material models is that there is no direct comparison between the material models which leads to several sheet metal forming compani
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Salem, M. A. "Accumulation and degradation of aliphatic nitrocompounds in Hippocrepis comosa and other legumes." Thesis, Swansea University, 1997. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.638749.

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3-nitropropionic acid was surveyed in leaves of 155 angiosperm species representing 50 families (mostly European). 3-nitropropionate was found only in extracts of 9 legumes. One of these was <I>Hippocrepis comosa</I> which was studied in detail. 3-nitropropionic acid and three of its glucose esters 6-O-(3-nitropropanoyl)-αβ-D-glucopyranose; 1,6-di-O-(3-nitropropanoyl)-β-D-glucopyranose (cibarian) 1,2,6-tri-O-(3-nitropropanoyl)-β-D-glucopyranose (karakin) were isolated from shoots of this species and identified spectrophotometrically. In addition, the 3-nitropropanoyl ester of 4-hydroxybutanoic
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Glaser, Norbert. "Contribution à l'acquisition et à la modélisation de connaissances dans un cadre multi-agents : l’approche CoMoMAS." Nancy 1, 1996. http://www.theses.fr/1996NAN10300.

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Cette thèse propose une approche pour la modélisation des systèmes multi-agents à un niveau conceptuel indépendant de l'implantation. Notre approche étend l'approche CommonKADS au développement de systèmes multi-agents. Nous proposons un ensemble de modèles conceptuels pour la description de systèmes composés d'agents de diverses compétences. Nous introduisons également des méthodes pour l'acquisition incrémentale des connaissances et aussi une structuration de bibliothèques de modèles adaptées à la réutilisation. Un environnement d'ingénierie de la connaissance a été réalisé pour démontrer la
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Hellström, Josefine. "Tårfilmen hos datoranvändare : En jämförande studie av tårsubstituten Systane och Hylo-Comod." Thesis, University of Kalmar, School of Pure and Applied Natural Sciences, 2009. http://urn.kb.se/resolve?urn=urn:nbn:se:hik:diva-2277.

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Fouquet, Guillemette. "Régulation de l’érythropoïèse : rôle des récepteurs à la transferrine et d’un phytoestrogène." Thesis, Université Paris-Saclay (ComUE), 2019. http://www.theses.fr/2019SACLS293.

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L’érythropoïèse est un processus extrêmement prolifératif, et qui doit donc être très étroitement régulé. L’érythropoïétine (EPO) est l’un des facteurs absolument nécessaires à l’érythropoïèse. Cependant, dans la moelle osseuse, la quantité d'EPO circulante est sous-optimale et la capacité des érythroblastes à survivre dépend donc de leur sensibilité à l'EPO. Les facteurs modulant la réponse à l'EPO au cours de l'érythropoïèse sont encore largement inconnus.Nous avons donc voulu explorer plusieurs facteurs pouvant potentiellement être impliqués dans la régulation de l’érythropoïèse et plus pré
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Jagenberg, Jan Tim [Verfasser], Reiner [Akademischer Betreuer] Anderl, and Michael [Akademischer Betreuer] Abramovici. "CoMoNo: A Communication Model and Notation Supporting the Analysis and Planning of Communication Infrastructure / Jan Tim Jagenberg. Betreuer: Reiner Anderl ; Michael Abramovici." Darmstadt : Universitäts- und Landesbibliothek Darmstadt, 2014. http://d-nb.info/1108094759/34.

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Clarens, Christophe. "Processus et contrôles de la sédimentation miocène à actuelle dans un bassin en extension : cas de la formation Comondu et du bassin Alfonso-El Carrizal (Basse Californie du Sud, Mexique)." Bordeaux 1, 2006. http://www.theses.fr/2006BOR13206.

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L'évolution géodynamique de la marge continentale de Californie a entraîné la formation de bassins sédimentaires divergents et est enregistrée par différents marqueurs que nous avons voulu étudier à travers l'exemple du bassin transtensionnel d'Alfonso-El Carrizal, créé pendant l'ouverture du Golfe de Californie, du Miocène à l'Actuel. Cette analyse a permis de différencier les trois grandes phases majeures de l'évolution de cette marge et plus précisément en Basse Californie. Elle nous permet donc de déterminer l'origine et l'histoire du bassin et de comprendre les processus de remplissage au
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Livres sur le sujet "Comonad"

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Power, Thomas. Tomorrow's e~comony. UUNET, 1999.

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Andrad, Mario de. São Paulo! comocao de minha vida... Prefeitura de São Paulo Cultura, 2013.

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Meza, J. Antonio Sequera. Coloquio de San Miguel de Comondú. Gobierno del Estado de Baja California Sur, Instituto Sudcaliforniano de Cultura, 2008.

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Oliva, Salvador Hinojosa. Cuaderno histórico del templo misional de Nuestro Señor de San José de Comondú. Gobierno del Estado de Baja California Sur, Instituto Sudcaliforniano de Cultura, 2009.

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Torre, Giovanni La. La comoda menzogna: Il dibattito sulla crisi globale. Dedalo, 2011.

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Pițu, Luca. Fragmente dintr-un discurs in(?)comod. Institutul European, 1993.

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Glaser, Norbert. Conceptual Modelling of Multi-Agent Systems: The CoMoMAS Engineering Environment. Springer US, 2002.

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Board, Engineering Industry Training. Engineering training guide: Welding and fabrication - comon skills. 2nd ed. EITB, 1988.

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Micheline, Cariño Martha, ed. Opciones de desarrollo en el oasis de los Comondú, Baja California Sur, México. Gobierno del Estado de Baja California Sur, Instituto Sudcaliforniano de Cultura, 2013.

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Agrosì, Giulia. La smart city e la città comoda: Una nuova realtà futurista "Smartiana". Mimesis, 2022.

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Chapitres de livres sur le sujet "Comonad"

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McDermott, Dylan, Exequiel Rivas, and Tarmo Uustalu. "Sweedler Theory of Monads." In Lecture Notes in Computer Science. Springer International Publishing, 2022. http://dx.doi.org/10.1007/978-3-030-99253-8_22.

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AbstractMonad-comonad interaction laws are a mathematical concept for describing communication protocols between effectful computations and coeffectful environments in the paradigm where notions of effectful computation are modelled by monads and notions of coeffectful environment by comonads. We show that monad-comonad interaction laws are an instance of measuring maps from Sweedler theory for duoidal categories whereby the final interacting comonad for a monad and a residual monad arises as the Sweedler hom and the initial residual monad for a monad and an interacting comonad as the Sweedler
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Ahman, Danel, James Chapman, and Tarmo Uustalu. "When Is a Container a Comonad?" In Foundations of Software Science and Computational Structures. Springer Berlin Heidelberg, 2012. http://dx.doi.org/10.1007/978-3-642-28729-9_5.

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Dawar, Anuj. "Constraint Satisfaction, Graph Isomorphism, and the Pebbling Comonad." In Samson Abramsky on Logic and Structure in Computer Science and Beyond. Springer International Publishing, 2023. http://dx.doi.org/10.1007/978-3-031-24117-8_18.

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Pientka, Brigitte, and Ulrich Schöpp. "Semantical Analysis of Contextual Types." In Lecture Notes in Computer Science. Springer International Publishing, 2020. http://dx.doi.org/10.1007/978-3-030-45231-5_26.

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AbstractWe describe a category-theoretic semantics for a simply typed variant of Cocon, a contextual modal type theory where the box modality mediates between the weak function space that is used to represent higher-order abstract syntax (HOAS) trees and the strong function space that describes (recursive) computations about them. What makes Cocon different from standard type theories is the presence of first-class contexts and contextual objects to describe syntax trees that are closed with respect to a given context of assumptions. Following M. Hofmann’s work, we use a presheaf model to char
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Gehrke, Wolfgang. "Problems in rewriting applied to categorical concepts by the example of a computational comonad." In Rewriting Techniques and Applications. Springer Berlin Heidelberg, 1995. http://dx.doi.org/10.1007/3-540-59200-8_58.

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Došen, Kosta. "Comonads." In Cut Elimination in Categories. Springer Netherlands, 1999. http://dx.doi.org/10.1007/978-94-017-1207-1_6.

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Orchard, Dominic, and Alan Mycroft. "A Notation for Comonads." In Implementation and Application of Functional Languages. Springer Berlin Heidelberg, 2013. http://dx.doi.org/10.1007/978-3-642-41582-1_1.

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Fukihara, Yōji, and Shin-ya Katsumata. "Generalized Bounded Linear Logic and its Categorical Semantics." In Lecture Notes in Computer Science. Springer International Publishing, 2021. http://dx.doi.org/10.1007/978-3-030-71995-1_12.

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AbstractWe introduce a generalization of Girard et al.’s called (and its affine variant ). It is designed to capture the core mechanism of dependency in , while it is also able to separate complexity aspects of . The main feature of is to adopt a multi-object pseudo-semiring as a grading system of the !-modality. We analyze the complexity of cut-elimination in , and give a translation from with constraints to with positivity axiom. We then introduce indexed linear exponential comonads (ILEC for short) as a categorical structure for interpreting the $${!}$$ ! -modality of . We give an elementar
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Clouston, Ranald, and Robert Goldblatt. "Covarieties of Coalgebras: Comonads and Coequations." In Theoretical Aspects of Computing – ICTAC 2005. Springer Berlin Heidelberg, 2005. http://dx.doi.org/10.1007/11560647_19.

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Abramsky, Samson, Tomáš Jakl, and Thomas Paine. "Discrete Density Comonads and Graph Parameters." In Coalgebraic Methods in Computer Science. Springer International Publishing, 2022. http://dx.doi.org/10.1007/978-3-031-10736-8_2.

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Actes de conférences sur le sujet "Comonad"

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Abramsky, Samson, Anuj Dawar, and Pengming Wang. "The pebbling comonad in Finite Model Theory." In 2017 32nd Annual ACM/IEEE Symposium on Logic in Computer Science (LICS). IEEE, 2017. http://dx.doi.org/10.1109/lics.2017.8005129.

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Montacute, Yoàv, and Nihil Shah. "The Pebble-Relation Comonad in Finite Model Theory." In LICS '22: 37th Annual ACM/IEEE Symposium on Logic in Computer Science. ACM, 2022. http://dx.doi.org/10.1145/3531130.3533335.

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Katsumata, Shin-ya, Exequiel Rivas, and Tarmo Uustalu. "Interaction Laws of Monads and Comonads." In LICS '20: 35th Annual ACM/IEEE Symposium on Logic in Computer Science. ACM, 2020. http://dx.doi.org/10.1145/3373718.3394808.

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Dawar, Anuj, Tomas Jakl, and Luca Reggio. "Lovász-Type Theorems and Game Comonads." In 2021 36th Annual ACM/IEEE Symposium on Logic in Computer Science (LICS). IEEE, 2021. http://dx.doi.org/10.1109/lics52264.2021.9470609.

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Foner, Kenneth. "Functional pearl: getting a quick fix on comonads." In ICFP'15: 20th ACM SIGPLAN International Conference on Functional Programming. ACM, 2015. http://dx.doi.org/10.1145/2804302.2804310.

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Lee, Youngki, Younghyun Ju, Chulhong Min, Seungwoo Kang, Inseok Hwang, and Junehwa Song. "CoMon." In the 10th international conference. ACM Press, 2012. http://dx.doi.org/10.1145/2307636.2307641.

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Abramsky, Samson, and Dan Marsden. "Comonadic semantics for guarded fragments." In 2021 36th Annual ACM/IEEE Symposium on Logic in Computer Science (LICS). IEEE, 2021. http://dx.doi.org/10.1109/lics52264.2021.9470594.

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Гонсалес Франко, M. X., А. И. Юркина, О. В. Разумова, М. Г. Дивашук та Е. Д. Бадаева. "ЦИТОГЕНЕТИЧЕСКОЕ ИЗУЧЕНИЕ AEGILOPS COMOSA". У Биотехнология в растениеводстве, животноводстве и сельскохозяйственной микробиологии. Crossref, 2024. https://doi.org/10.48397/e4006-1919-2277-y.

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Aegilops comosa Sm. in Sibth. &amp; Sm. — это однолетний злак с диплоидным набором хромосом (2n=2x=14) и геномом MM. Установлено, что эта форма принимала участие в образовании ряда полиплоидных видов рода Aegilops, таких как тетраплоидные Ae. ovata, Ae. columnaris, Ae. biuncialis и Ae. triaristata [1, 2].
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Montacute, Yoàv, and Glynn Winskel. "Concurrent Games over Relational Structures: The Origin of Game Comonads." In LICS '24: 39th Annual ACM/IEEE Symposium on Logic in Computer Science. ACM, 2024. http://dx.doi.org/10.1145/3661814.3662075.

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Abramsky, Samson, Rui Soares Barbosa, Martti Karvonen, and Shane Mansfield. "A comonadic view of simulation and quantum resources." In 2019 34th Annual ACM/IEEE Symposium on Logic in Computer Science (LICS). IEEE, 2019. http://dx.doi.org/10.1109/lics.2019.8785677.

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Rapports d'organisations sur le sujet "Comonad"

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Gehrke, Wolfgang. Problems in Rewriting Applied to Categorical Concepts by the Example of a Computational Comonad. Defense Technical Information Center, 1994. http://dx.doi.org/10.21236/ada288582.

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Brookes, Stephen, and Kathryn Van Stone. Monads and Comonads in Intensional Semantics. Defense Technical Information Center, 1993. http://dx.doi.org/10.21236/ada266522.

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Contessi, Silvio, Pierangelo De Pace, and Massimo Guidolin. How Did the Financial Crisis Alter the Correlations of U.S. Yield Spreads? Federal Reserve Bank of St. Louis, 2013. http://dx.doi.org/10.20955/wp.2013.005.

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We investigate the pairwise correlations of 11 U.S. fixed income yield spreads over a sample that includes the Great Financial Crisis of 2007-2009. Using cross-sectional methods and nonparametric bootstrap breakpoint tests, we characterize the crisis as a period in which pairwise correlations between yield spreads were systematically and significantly altered in the sense that spreads comoved with one another much more than in normal times. We find evidence that, for almost half of the 55 pairs under investigation, the crisis has left spreads much more correlated than they were previously. Thi
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Dubcovsky, Jorge, Tzion Fahima, and Ann Blechl. Molecular characterization and deployment of the high-temperature adult plant stripe rust resistance gene Yr36 from wheat. United States Department of Agriculture, 2013. http://dx.doi.org/10.32747/2013.7699860.bard.

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Stripe rust, caused by Puccinia striiformis f. sp. tritici is one of the most destructive fungal diseases of wheat. Virulent races that appeared within the last decade caused drastic cuts in yields. The incorporation of genetic resistance against this pathogen is the most cost-effective and environmentally friendly solution to this problem. However, race specific seedling resistance genes provide only a temporary solution because fungal populations rapidly evolve to overcome this type of resistance. In contrast, high temperature adult plant (HTAP) resistance genes provide a broad spectrum resi
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