Bi-Univalent Function Classes Defined by Using a Second Einstein Function

<div>The images of unit disc <svg height="9.25986pt" id="M40" style="vertical-align:-0.2455397pt" version="1.1" viewbox="-0.0498162 -9.01432 11.0867 9.25986" width="11.0867pt" xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink"><g transform="matrix(.013,0,0,-0.013,0,0)"><path d="M805 658H719L589 415C537 319 349 15 237 15C214 15 208 28 208 43C208 59 219 86 247 130L433 417C464 464 471 506 471 541C471 638 384 687 292 687C164 687 36 597 36 474C36 406 83 360 151 360C238 360 296 442 309 509H289C265 440 225 390 150 390C103 390 77 426 77 474C77 582 175 652 283 652C340 652 404 619 404 568C404 541 397 512 368 467L223 240C170 155 153 111 153 73C153 18 186 -15 234 -15C290 -15 367 41 439 138L442 137C427 106 425 83 425 66C425 18 463 -12 511 -12C575 -12 638 42 714 134L693 147C621 63 565 18 525 18C506 18 492 28 492 53C492 60 493 77 509 108L805 658Z"></path></g></svg> by the Einstein functions <span class="nowrap"><svg height="11.8174pt" id="M41" 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Journal of Function Spaces

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Figure 1

Figure 1: Bi-Univalent Function Classes Defined by Using a Second Einstein Function 