SCOAP3 Repository 11 records found  1 - 10nextSearch took 0.01 seconds. 
1. Generalized cut operation associated with higher order variation in tensor models / Itoyama, H. ; Yoshioka, R.
The cut and join operations play important roles in tensor models in general. [...]
Published in Nuclear Physics B 945 (2019) 10.1016/j.nuclphysb.2019.114681
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2. Discrete Painlevé system and the double scaling limit of the matrix model for irregular conformal block and gauge theory / Itoyama, H. ; Oota, T. ; Yano, Katsuya
We study the partition function of the matrix model of finite size that realizes the irregular conformal block for the case of the N=2 supersymmetric SU(2) gauge theory with Nf=2 . [...]
Published in Physics letters B 789 (2019) 605-609 10.1016/j.physletb.2018.10.077
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3. From Kronecker to tableau pseudo-characters in tensor models / Itoyama, H. ; Mironov, A. ; Morozov, A.
We present a brief summary of the recent discovery of direct tensorial analogue of characters. [...]
Published in Physics letters B 788 (2019) 76-81 10.1016/j.physletb.2018.11.008
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4. Cut and join operator ring in tensor models / Itoyama, H. ; Mironov, A. ; Morozov, A.
Recent advancement of rainbow tensor models based on their superintegrability (manifesting itself as the existence of an explicit expression for a generic Gaussian correlator) has allowed us to bypass the long-standing problem seen as the lack of eigenvalue/determinant representation needed to establish the KP/Toda integrability. [...]
Published in Nuclear Physics B (2018) 10.1016/j.nuclphysb.2018.05.007
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5. Ward identities and combinatorics of rainbow tensor models / Itoyama, H. ; Mironov, A. ; Morozov, A.
We discuss the notion of renormalization group (RG) completion of non-Gaussian Lagrangians and its treatment within the framework of Bogoliubov-Zimmermann theory in application to the matrix and tensor models. [...]
Published in JHEP 1706 (2017) 115 10.1007/JHEP06(2017)115 arXiv:1704.08648
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6. Rainbow tensor model with enhanced symmetry and extreme melonic dominance / Itoyama, H. ; Mironov, A. ; Morozov, A.
We introduce and briefly analyze the rainbow tensor model where all planar diagrams are melonic. [...]
Published in Physics letters B (2017) 10.1016/j.physletb.2017.05.043
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7. The birth of string theory / Itoyama, H.
This is a brief summary of an introductory lecture for students and scholars in general given by the author at the Nambu Memorial Symposium which was held at Osaka City University on 29 September 2015. [...]
Published in PTEP 2016 (2016) 06A103 10.1093/ptep/ptw063 arXiv:1604.03701
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8. Genus one super-Green function revisited and superstring amplitudes with non-maximal supersymmetry / Itoyama, H. ; Yano, Kohei
We reexamine genus one super-Green functions with general boundary conditions twisted by for directions in the eigenmode expansion and derive expressions as infinite series of hypergeometric functions. [...]
Published in PTEP 2016 (2016) 033B05 10.1093/ptep/ptw019 arXiv:1512.07705
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9. Developments of theory of effective prepotential from extended Seiberg–Witten system and matrix models / Itoyama, H. ; Yoshioka, R.
This is a semi-pedagogical review of a medium size on the exact determination of and the role played by the low energy effective prepotential in quantum field theory with (broken) extended supersymmetry, which began with the work of Seiberg and Witten in 1994. [...]
Published in PTEP 2015 (2015) 11B103 10.1093/ptep/ptv124 arXiv:1507.00260
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10. Mass sum rule of the effective action on vacua with broken rigid N=1 supersymmetry / Itoyama, H. ; Maru, Nobuhito
We present an extension of the mass sum rule that applies to renormalizable rigid supersymmetric field theories to the case of the N=1 supersymmetric effective action (the gauged non-linear sigma model) consisting of adjoint scalar superfields and vector superfields possessing a Kähler potential, a set of gauge coupling functions (second prepotential derivatives) and a superpotential, which respectively set their energy scales. [...]
Published in Nuclear Physics B 893 (2015) 332-345 10.1016/j.nuclphysb.2015.02.017
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