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Theta-stratifications, Theta-reductive stacks, and applications
[article]

2016
*
arXiv
*
pre-print

We discuss methods for analyzing stability in general moduli problems, focusing

arXiv:1608.04797v1
fatcat:renxp7idufdolkaaoaykl5djwi
*on*the moduli of coherent sheaves*on*a smooth projective scheme as a toy example. ... We describe several applications: a general structure theorem for the derived category of coherent sheaves*on*an algebraic stack; some results*on*the topology of moduli stacks; and a "virtual non-abelian ... In the*context*of Example 1.9,*one*can find classes (See [HL1] ) in H 2 and H 4 such that µ is the normalized Futaki invariant of [D2] . ...##
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Frontal-midline theta from the perspective of hippocampal "theta"

2008
*
Progress in Neurobiology
*

*based*

*on*frequency bands. ... Participants were broken into groups

*based*

*on*whether FM-

*theta*was initially present or not in EEG records. ...

##
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Refinements to Mumford's theta and adelic theta groups
[article]

2018
*
arXiv
*
pre-print

We also consider adelic

arXiv:1312.2970v2
fatcat:2is3hqrzv5hutjxwtqytp5oohi
*theta*groups associated to line bundles*on*X. ... We consider*theta*groups associated to simple semi-homogenous vector bundles of separable type*on*X. We determine the structure and representation theory of these groups. ... To place our results, concerning*theta*groups, in proper*context*it is important to emphasize that our results build*on*work of Mukai, especially [9] , and Mumford, namely [10, §1] . ...##
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THETA-MARKING VIA AGREE

2009
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English Linguistics
*

*on*data from control constructions in English and Japanese that indicate that a controller is θ-marked in the embedded [Spec, C] (precisely, [Spec, Fin]) by a matrix predicate ... θ-marking is performed by the general mechanism of feature checking, I will propose that θ-marking takes place via Agree, and provide conceptual and empirical arguments in favor of this view of θ-marking,

*based*... As for Japanese, Ochi (to appear) argues,

*based*

*on*a study of Nominative-Genitive Conversion, that Japanese has obligatory overt

*object*shift. ...

##
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THETA ROLE ASSIGNMENT IN TIV

2020
*
Zenodo
*

The researcher used their intuitive knowledge of Tiv to analyse the

doi:10.5281/zenodo.5221409
fatcat:mtjsfpsilbf5vm4ecnyknoclm4
*theta*role assignment in Tiv*based**on*the ThetaTheory, which is a sub-theory under Chomsky's Government/Binding. ... This study differs from the previous work because it has harmonised the claimed maleficiary and*object*thematic roles into the patient thematic role since the target argument in such a*context*is affected ... The selected sentences in Tiv were analysed*based**on*the*objectives*of the study which were to discover the thematic roles in Tiv sentences using the*Theta*Theory. ...##
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The Optimised Theta Method
[article]

2015
*
arXiv
*
pre-print

In this paper, we propose a generalisation of the

arXiv:1503.03529v1
fatcat:tc64g62hnbfjvbrcfnaxxehjii
*Theta*method by optimising the selection of the second*theta*line,*based**on*various validation schemes where the out-of-sample accuracy of the candidate ... In this*context*, the*Theta*method called researchers attention due its performance in the largest up-to-date forecasting competition, the M3-Competition. ... The*Theta*method The intuitive idea of the*Theta*method Assimakopoulos & Nikolopoulos (2000) has its basis*on*the decomposition of the original time series*based**on*their local curvatures. ...##
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Learning alters theta amplitude, theta-gamma coupling and neuronal synchronization in inferotemporal cortex

2011
*
BMC Neuroscience
*

We thank Andrew Tate and Andrea Leigh for their help with carrying out behavioral and recording experiments and Dr Anne Segonds-Pichon for professional statistical advice

doi:10.1186/1471-2202-12-55
pmid:21658251
pmcid:PMC3123243
fatcat:gfjp4ggocvfbrjjiipy2wjyjve
*on*analysis of the IT data. . ... The synchronization index was*based**on*the following. ... The size of the network chosen was*based**on*the number of neurons typically recorded by our array electrodes. ...##
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Theta oscillations promote temporal sequence learning

2018
*
Neurobiology of Learning and Memory
*

time

doi:10.1016/j.nlm.2018.05.001
pmid:29753784
fatcat:breuhg273fhkzmutlf3rjdpdlu
*on*the current trial. ... Participants made semantic decisions*on*each*object*as they were presented in a continuous stream. For three "Consistent" sequences, the order of the*objects*was always fixed. ... ,*based**on*a semantic question (e.g. ...##
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Finding the theta-Guarded Region
[article]

2008
*
arXiv
*
pre-print

We prove a tight O(n) worst-case bound

arXiv:0806.2090v2
fatcat:affwxbcfhvcyjelin4m5atj3m4
*on*the complexity of the*theta*-region for*theta*>= pi/2. ... Furthermore, the set of all*theta*-guarded points is called the*theta*-guarded region, or the*theta*-region for short. We present several results*on*this topic. ... Our algorithm is*based**on*the Partitioning Theorem [13] and*on*the computation of an arrangement of circular arcs. ...##
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The Theta-Gamma Neural Code

2013
*
Neuron
*

First-in-first-out item replacement in a model of short-term memory

doi:10.1016/j.neuron.2013.03.007
pmid:23522038
pmcid:PMC3648857
fatcat:iivx4zy7f5e5bo6hojkkfnrdva
*based**on*persistent spiking. ... Neural correlates of*object*-in-place learning in hippocampus and prefrontal cortex. J. Neurosci. 31, 16991-17006. Kim, S.M., Ganguli, S., and Frank, L.M. (2012). ... If we use hippocampal*theta*as a model, the elevated*theta*state would be the engaged state. But*based**on*the ''alpha rules,'' the lowered*theta*state would be the engaged state. ...##
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Theta phase precession beyond the hippocampus

2012
*
Reviews in the Neurosciences
*

preference and

doi:10.1515/revneuro-2011-0064
pmid:22718612
fatcat:ls7szzf7arhwjcbj5xvkno2kz4
*context*-dependent reinstatement. ... At the population level,*theta*cycles shape repeated, compressed place cell sequences that correspond to coherent paths. ... In decoding which*context*an animal is in*based**on*hippocampal firing patterns alone, no single place cell provides sufficient information. ...##
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Delta and Theta Operator Expansions
[article]

2022
*
arXiv
*
pre-print

Even the most special cases of this general Delta and

arXiv:2203.10342v2
fatcat:jx6pnkkm5zg3xixnfpcknkmm3q
*Theta*operator expression are significant; we highlight a few of these special cases. ... We end by giving an e-positivity conjecture for when t is not specialized, proposing that our*objects*can also give the elementary basis expansion in the unspecialized symmetric function. ... But now the second and the third factor contributing to weight(T ) are exactly j∈Asc(w) #{cells in the same*base*and*on*the right of w j } and j l j × #{cells in the same*base*and*on*the right of w j } ...##
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Tangent cones to generalised theta divisors and generic injectivity of the theta map

2017
*
Compositio Mathematica
*

For $g\geqslant (2r+2)(2r+1)$ , we show how the bundle $E$ can be recovered from the tangent cone to the generalised

doi:10.1112/s0010437x17007539
fatcat:42rytntjwvgklcydhbgt3ps4z4
*theta*divisor $\unicode[STIX]{x1D6E9}_{E}$ at ${\mathcal{O}}_{C}$ . ... We use this to give a constructive proof and a sharpening of Brivio and Verra's theorem that the*theta*map $\mathit{SU}_{C}(r){\dashrightarrow}|r\unicode[STIX]{x1D6E9}|$ is generically injective for large ... Acknowledgements The authors would like to thank Ciro Ciliberto, Peter Newstead, Christian Pauly, Frank-Olaf Schreyer and Edoardo Sernesi for helpful discussions and comments*on*this work. ...##
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Compositions of theta correspondences

2005
*
Advances in Mathematics
*

We show that under a natural condition

doi:10.1016/j.aim.2004.01.001
fatcat:lok7om42gjhq3i7xty7pdtxuhi
*on*the sizes of the related dual pairs which can be predicted by the orbit method ( ...*Theta*correspondence y over R is established by Howe (J. Amer. Math. Soc. 2 (1989) 535). In He (J. Funct. ... The description of the wave front set under quantum induction can be predicted*based**on*[23] . ...##
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Theta-problem and the String Swampland
[article]

2018
*
arXiv
*
pre-print

In the

arXiv:1808.03483v1
fatcat:72nsmlmgujcufodarm4u5jpnhe
*context*of N=2 supergravity without vector multiplets coupled to hypermultiplets, the coupling constant of graviphoton τ is apriori a free parameter. ... However consistency of quantum gravity would explain the frozen values of θ which thus resolves the '*theta*-problem' in the*context*of this hypothetical universe. ... For example in the*context*of type IIB, we can view that τ as the vev of a field corresponding to the smallest eigenvalue of the Laplacian acting*on*(2, 1) forms*on*the CY 3-fold. ...
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