Zobrazeno 1 - 10
of 13
pro vyhledávání: '"Mohammad Farajzadeh Tehrani"'
Autor:
null John S. Baras, null Mohammad Farajzadeh-Tehrani, null Mohammad A. (Amir) Khojastepour, null Nariman Torkzaban
Publikováno v:
ITU Journal on Future and Evolving Technologies. 4:87-101
Millimeter-wave (mmWave) communications is a key enabler towards realizing enhanced Mobile Broadband (eMBB) as a key promise of 5G and beyond, due to the abundance of bandwidth available at mmWave bands. An mmWave coverage map consists of blind spots
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::b78c3ee4942948490af99be9722b0325
https://doi.org/10.52953/vbex2484
https://doi.org/10.52953/vbex2484
Autor:
Mohammad Farajzadeh-Tehrani
Publikováno v:
Peking Mathematical Journal.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::e6c5c3711c0f72821061f931c7fe73eb
https://doi.org/10.1007/s42543-023-00069-1
https://doi.org/10.1007/s42543-023-00069-1
Autor:
Mohammad Farajzadeh-Tehrani
Publikováno v:
Geometriae Dedicata. 216
Given a semistable degeneration with a simple normal crossings central fiber, Abramovich-Chen-Gross-Siebert [3] proved a degeneration formula that relates the moduli spaces of stable maps in smooth fibers to certain moduli spaces of log-smooth maps i
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::6b3afbab974f1deba0ffb6f8ae09117c
https://doi.org/10.1007/s10711-022-00731-5
https://doi.org/10.1007/s10711-022-00731-5
Publikováno v:
Advances in Mathematics. 339:672-748
We introduce topological notions of normal crossings symplectic divisor and variety and establish that they are equivalent, in a suitable sense, to the desired geometric notions. Our proposed concept of equivalence of associated topological and geome
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::8ad57c424b6f6794a62fb865f5545357
https://doi.org/10.1016/j.aim.2018.09.035
https://doi.org/10.1016/j.aim.2018.09.035
Publikováno v:
Comptes Rendus Mathematique. 356:420-432
We overview our recent work defining and studying normal crossings varieties and subvarieties in symplectic topology. This work answers a question of Gromov on the feasibility of introducing singular (sub)varieties into symplectic topology in the cas
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::60cbdc8e5043e7b06792fc3552813b33
https://doi.org/10.1016/j.crma.2018.02.009
https://doi.org/10.1016/j.crma.2018.02.009
Publikováno v:
Communications in Contemporary Mathematics. 23:2050051
We construct Ionel–Parker’s proposed refinement of the standard relative Gromov–Witten invariants in terms of abelian covers of the symplectic divisor and discuss in what sense it gives rise to invariants. We use it to obtain some vanishing res
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::6fb6738a6b4957b51fc7bcbfb0a9611c
https://doi.org/10.1142/s0219199720500510
https://doi.org/10.1142/s0219199720500510
Publikováno v:
International Journal of Mathematics. 31:2050032
We describe the extent to which Ionel–Parker’s proposed refinement of the standard relative Gromov–Witten invariants (GW-invariants) sharpens the usual symplectic sum formula. The key product operation on the target spaces for the refined invar
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::5fa8ce93f05e89e1723e621bcd5ea76c
https://doi.org/10.1142/s0129167x20500329
https://doi.org/10.1142/s0129167x20500329
Autor:
Mohammad Farajzadeh-Tehrani
Inspired by the log Gromov-Witten (or GW) theory of Gross-Siebert/Abramovich-Chen, we introduce a geometric notion of log J-holomorphic curve relative to a simple normal crossings symplectic divisor defined in [FMZ1]. Every such moduli space is chara
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::f7cdcdc385ba4e0ab34084f6eaa4ba41
http://arxiv.org/abs/1710.00224
http://arxiv.org/abs/1710.00224
Autor:
Mohammad Farajzadeh Tehrani
Publikováno v:
Manuscripta Mathematica. 146:299-306
In this paper, we will prove that all Batyrev Calabi–Yau threefolds, arising from a crepant resolution of a generic hyperplane section of a toric Fano–Gorenstein fourfold, have finite automorphism group. Together with the Morrison conjecture, thi
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::8a5af517ac3d4156106b3bd332da730b
https://doi.org/10.1007/s00229-014-0688-4
https://doi.org/10.1007/s00229-014-0688-4
Publikováno v:
Peking Mathematical Journal
We use local Hamiltonian torus actions to degenerate a symplectic manifold to a normal crossings symplectic variety in a smooth one-parameter family. This construction, motivated in part by the Gross-Siebert and B. Parker's programs, contains a multi
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::3d41b9b96ab57645a69cb3178a686268
http://arxiv.org/abs/1603.07661
http://arxiv.org/abs/1603.07661