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309 results on '"Yousefi, Hassan"'

6. Maximal Tracial Algebras

Author

Hadwin, Don and Yousefi, Hassan

Subjects
Mathematics - Functional Analysis
Abstract

We introduce and study the notion of maximal tracial algebras. We prove several results in a general setting based on dual pairs and multiplier pairs. In a special case that X is a Banach space we determine the abelian subalgebras of B(X) that are maximal tracial for rank-one tensors. We also make slight connections between our ideas and the Kadison Similarity Problem and also the Connes' Embedding Problem., Comment: 17 pages

Published
2018

13. Correction to: A combination of novel NSC small molecule inhibitor along with doxorubicin inhibits proliferation of triple-negative breast cancer through metabolic reprogramming

Author

Yousefi, Hassan, Khosla, Maninder, Lauterboeck, Lothar, Okpechi, Samuel C., Worthylake, David, Garai, Jone, Zabaleta, Jovanny, Guidry, Jessie, Zarandi, Mohammad Amin, Wyczechowska, Dorota, Jayawickramarajah, Janarthanan, Yang, Qinglin, Kissil, Joseph, and Alahari, Suresh K.

Published
2023
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26. R-Orbit Reflexive Operators

Author

Hadwin, Don, Ionascu, Ileana, and Yousefi, Hassan

Subjects
Mathematics - Functional Analysis
Abstract

We completely characterize orbit reflexivity and R-orbit reflexivity for square matrices over the real numbers. Unlike the complex case in which every matrix is orbit reflexive and C-orbit reflexivity is characterized solely in terms of the Jordan form, the orbit reflexivity and R-orbit reflexivity of a real matrix is described in terms of the linear dependence over Q of certain elements of R/Q. We also show that every n-by-n matrix over an uncountable field F is algebraically F-orbit reflexive.

Published
2011

27. Null-orbit reflexive operators

Author

Hadwin, Don, Ionascu, Ileana, and Yousefi, Hassan

Subjects
Mathematics - Functional Analysis, Mathematics - Operator Algebras
Abstract

We introduce and study the notion of null-orbit reflexivity, which is a slight perturbation of the notion of orbit-reflexivity. Positive results for orbit reflexivity and the recent notion of $\mathbb{C}$-orbit reflexivity both extend to null-orbit reflexivity. Of the two known examples of operators that are not orbit-reflexive, one is null-orbit reflexive and the other is not. The class of null-orbit reflexive operators includes the classes of hyponormal, algebraic, compact, strictly block-upper (lower) triangular operators, and operators whose spectral radius is not 1. We also prove that every polynomially bounded operator on a Hilbert space is both orbit-reflexive and null-orbit reflexive.

Published
2011

28. C-orbit reflexive operators

Author

Hadwin, Don, Ionascu, Ileana, McHugh, Michael, and Yousefi, Hassan

Subjects
Mathematics - Functional Analysis
Abstract

We introduce the notion of C-orbit reflexivity and study its properties. An operator on a finite-dimensional space is C-orbit reflexive if and only if the two largest blocks in its Jordan form corresponding to nonzero eigenvalues with the largest modulus differ in size by at most one. Most of the proofs of our results in infinite dimensions are obtained from purely algebraic results we obtain from linear-algebraic analogs of C-orbit reflexivity., Comment: 16 pages

Published
2010

29. Stable and Norm-stable Invariant Subspaces

Author

Borichev, Alexander, Hadwin, Don, and Yousefi, Hassan

Subjects
Mathematics - Functional Analysis, Primary 47A15, Secondary 47B37
Abstract

We prove that if T is an operator on an infinite-dimensional Hilbert space whose spectrum and essential spectrum are both connected and whose Fredholm index is only 0 or 1, then the only nontrivial norm-stable invariant subspaces of T are the finite-dimensional ones. We also characterize norm-stable invariant subspaces of any weighted unilateral shift operator. We show that quasianalytic shift operators are points of norm continuity of the lattice of the invariant subspaces. We also provide a necessary condition for strongly stable invariant subspaces for certain operators.

Published
2010

32. The ERBB receptor inhibitor dacomitinib suppresses proliferation and invasion of pancreatic ductal adenocarcinoma cells

Author

Momeny, Majid, Esmaeili, Fatemeh, Hamzehlou, Sepideh, Yousefi, Hassan, Javadikooshesh, Sepehr, Vahdatirad, Vasimeh, Alishahi, Zivar, Mousavipak, Seyedeh H., Bashash, Davood, Dehpour, Ahmad R., Tavangar, Seyyed M., Tavakkoly-Bazzaz, Javad, Haddad, Peiman, Kordbacheh, Farzaneh, Alimoghaddam, Kamran, Ghavamzadeh, Ardeshir, and Ghaffari, Seyed H.

Published
2019
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40. Immunotherapeutic targets in non‐small cell lung cancer

Author

Sadeghirad, Habib, primary, Bahrami, Tayyeb, additional, Layeghi, Sepideh M., additional, Yousefi, Hassan, additional, Rezaei, Meysam, additional, Hosseini‐Fard, Seyed R., additional, Radfar, Payar, additional, Warkiani, Majid E., additional, O'Byrne, Ken, additional, and Kulasinghe, Arutha, additional

Published
2022
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41. Human Centered Design of Mobile Machines by a Virtual Environment

Author

Yousefi, Hassan, Soleimani, Amir Mohssen, Handroos, Heikki, Hutchison, David, Series editor, Kanade, Takeo, Series editor, Kittler, Josef, Series editor, Kleinberg, Jon M., Series editor, Mattern, Friedemann, Series editor, Mitchell, John C., Series editor, Naor, Moni, Series editor, Nierstrasz, Oscar, Series editor, Pandu Rangan, C., Series editor, Steffen, Bernhard, Series editor, Sudan, Madhu, Series editor, Terzopoulos, Demetri, Series editor, Tygar, Doug, Series editor, Vardi, Moshe Y., Series editor, Weikum, Gerhard, Series editor, and Kurosu, Masaaki, editor

Published
2009
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43. Expression of Novel Kinase MAP3K19 in Various Cancers and Survival Correlations

Author

Nguyen, Khoa, primary, Yousefi, Hassan, primary, Cheng, Thomas, primary, Magrath, Justin, primary, Hartono, Alifiani B., primary, Alzoubi, Madlin, primary, Hebert, Katherine, primary, Brock, Courtney K., primary, Wright, Maryl K., primary, Byrne, Charles Ethan, primary, Rivera, Andrew, primary, Okpechi, Sam C., primary, Matossian, Margarite Delores, primary, Wathieu, Henri, primary, Elliott, Steven, primary, Mondrinos, Mark J., primary, Lee, Sean B., primary, Collins-Burow, Bridgette M., primary, Alahari, Suresh K., primary, Drewry, David H., primary, and Burow, Matthew E., primary

Published
2022
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44. Abstract 1477: Circulating miR-125a-3p and miR-451a may be liquid biopsy biomarkers for the diagnosis of breast cancer

Author

Yousefi, Hassan, primary, Eastlack, Steven C., additional, Fong, Jordyn T, additional, Okpechi, Samuel C., additional, Zabaleta, Jovanny, additional, Buckner, Lyndsey R., additional, Trapani, Donnalee N, additional, Sims, Erin, additional, McDaniel, Alison McDaniel, additional, Scuderi, Heather, additional, Lakey, Meredith A., additional, Cole, John T., additional, and Alahari, Suresh K., additional

Published
2022
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