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The Injective and Projective Leavitt Complexes

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Leavitt Path Algebras and Classical K-Theory

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Abstract

For a certain finite graph E, we consider the corresponding finite dimensional algebra A with radical square zero. An explicit compact generator for the homotopy category of acyclic complexes of injective (resp. projective) modules over A, called the injective (resp. projective) Leavitt complex of E, was constructed in [18] (resp. [19]). We overview the connection between the injective (resp. projective) Leavitt complex and the Leavitt path algebra of E. A differential graded bimodule structure, which is right quasi-balanced, is endowed to the injective (resp. projective) Leavitt complex in [18] (resp. [19]). We prove that the injective (resp. projective) Leavitt complex is not left quasi-balanced.

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Acknowledgements

The author thanks Xiao-Wu Chen for many helpful discussions and encouragement. This project was supported by the National Natural Science Foundation of China (No.s 11522113 and 11571329). The author thanks Dr. Ambily Ambattu Asokan for hospitality when the author was in Cochin University of Science and Technology. The author thanks the support from CIMPA and the support from Centre for Research in Mathematics and Data Science. The author thanks Roozbeh Hazrat for many helpful discussions and encouragement. The author also would like to acknowledge the support of the Australian Research Council grant DP160101481. The author thanks Pere Ara, Jie Du, and Steffen Koenig for their support and help. The author thanks the anonymous referees for their very helpful suggestions to improve this paper.

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Li, H. (2020). The Injective and Projective Leavitt Complexes. In: Ambily, A., Hazrat, R., Sury, B. (eds) Leavitt Path Algebras and Classical K-Theory. Indian Statistical Institute Series. Springer, Singapore. https://doi.org/10.1007/978-981-15-1611-5_4

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