Zobrazeno 1 - 10
of 23
pro vyhledávání: '"Robert L. Karp"'
Autor:
Christopher P. Herzog, Robert L. Karp
Publikováno v:
Advances in Theoretical and Mathematical Physics. 13:599-636
In this paper we advance the program of using exceptional collections to understand the gauge theory description of a D-brane probing a Calabi-Yau singularity. To this end, we strengthen the connection between strong exceptional collections and fract
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::35d82694effed16eb71f4af04cb77c7d
https://doi.org/10.4310/atmp.2009.v13.n3.a1
https://doi.org/10.4310/atmp.2009.v13.n3.a1
Autor:
Robert L. Karp
Publikováno v:
Communications in Mathematical Physics. 270:163-196
We construct geometric representatives for the C^2/Z_n fractional branes in terms of branes wrapping certain exceptional cycles of the resolution. In the process we use large radius and conifold-type monodromies, and also check some of the orbifold q
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::1e1164f307cda98558b7c89b54a03da4
https://doi.org/10.1007/s00220-006-0162-6
https://doi.org/10.1007/s00220-006-0162-6
Autor:
Eugenio Marco, Robert L. Karp, Lorenzo Trippa, Adam H. Hart, Guo-Cheng Yuan, Guoji Guo, Paul Robson
Publikováno v:
Proceedings of the National Academy of Sciences of the United States of America. 111(52)
We present single-cell clustering using bifurcation analysis (SCUBA), a novel computational method for extracting lineage relationships from single-cell gene expression data and modeling the dynamic changes associated with cell differentiation. SCUBA
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::65aed782f16d221c3f0ac4a55265b1ce
https://pubmed.ncbi.nlm.nih.gov/25512504
https://pubmed.ncbi.nlm.nih.gov/25512504
Publikováno v:
Communications in Mathematical Physics. 259:45-69
We analyze the link between the occurrence of massless B-type D-branes for specific values of moduli and monodromy around such points in the moduli space. This allows us to propose a classification of all massless B-type D-branes at any point in the
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::21ee234590999c03d336e599478dc903
https://doi.org/10.1007/s00220-005-1378-6
https://doi.org/10.1007/s00220-005-1378-6
Autor:
László Palla, Robert L. Karp
Publikováno v:
Fortschritte der Physik. 48:143-146
The free energy densities of a pair of dually related sigma models are computed in perturbation theory to give further evidence of their physical equivalence
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::495c36a47274db43f7c36efafbfa9569
https://doi.org/10.1002/(sici)1521-3978(20001)48:1/3<143::aid-prop143>3.0.co
https://doi.org/10.1002/(sici)1521-3978(20001)48:1/3<143::aid-prop143>3.0.co
Publikováno v:
Journal of Mathematical Physics. 40:6033-6043
We make use of the properties of product integrals to obtain a surface product integral representation for the Wilson loop operator. The result can be interpreted as the non-abelian version of Stokes' theorem.
Latex; condensed version of hep-th/
Latex; condensed version of hep-th/
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::c10af7439ecbea1b8780b5955e42da13
https://doi.org/10.1063/1.533068
https://doi.org/10.1063/1.533068
Autor:
Jeremy Gunawardena, Tathagata Dasgupta, Alicia Dickenstein, Mercedes Pérez Millán, Robert L. Karp
The nonlinearities found in molecular networks usually prevent mathematical analysis of network behaviour, which has largely been studied by numerical simulation. This can lead to difficult problems of parameter determination. However, molecular netw
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::c5029edde2a54a4345e67507c712b5b6
http://arxiv.org/abs/1207.3453
http://arxiv.org/abs/1207.3453
Publikováno v:
International Journal of Modern Physics A. 16:978-980
We consider compact four-dimensional ${\bf Z_N}\times {\bf Z_M}$ type IIB orientifolds, for certain values of $N$ and $M$. We allow the additional feature of discrete torsion and discuss the modification of the consistency conditions arising from tad
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::eca4e206389f0e567689753939bcd78e
https://doi.org/10.1142/s0217751x01008655
https://doi.org/10.1142/s0217751x01008655
A numerical algorithm is presented for explicitly computing the gauge connection on slope-stable holomorphic vector bundles on Calabi-Yau manifolds. To illustrate this algorithm, we calculate the connections on stable monad bundles defined on the K3
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::82eaab02daaef6cf8c99f301231e11b2
http://arxiv.org/abs/1004.4399
http://arxiv.org/abs/1004.4399
Autor:
Robert L. Karp
We study the interplay between discrete quantum symmetries at certain points in the moduli space of Calabi-Yau compactifications, and the associated identities that the geometric realization of D-brane monodromies must satisfy. We show that in a wide
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::cca762f0c27e54cb2fce6fce767e76c0
http://arxiv.org/abs/0811.3375
http://arxiv.org/abs/0811.3375